FALSE --12-31 0001610520 Q2 2021 30/06/2021 <div>Reflects third-party fee and commission income for the second quarter of 2021 of USD 3,585 million for Global Wealth Management (first quarter of 2021: USD 3,673 million; second quarter of 2020: USD 2,809 million), USD 399 million for Personal & Corporate Banking (first quarter of 2021: USD 389 million; second quarter of 2020: USD 313 million), USD 805 million for Asset Management (first quarter of 2021: USD 815 million; second quarter of 2020: USD 700 million), USD 1,243 million for the Investment Bank (first quarter of 2021: USD 1,278 million; second quarter of 2020: USD 872 million) and USD 9 million for Group Functions (first quarter of 2021: USD 15 million; second quarter of 2020: USD 36 million).</div> <div>Financial advisor compensation consists of grid-based compensation based directly on compensable revenues generated by financial advisors and supplemental compensation calculated on the basis of financial advisor productivity, firm tenure, assets and other variables. It also includes expenses related to compensation commitments with financial advisors entered into at the time of recruitment that are subject to vesting requirements</div> <div>Debt with an original contractual maturity of less than one year</div> <div>Based on original contractual maturity without considering any early redemption features. As of 30 June 2021, 100% of the balance was unsecured (31 March 2021: 100%; 31 December 2020: 100%).</div> <div>Debt with an original contractual maturity greater than or equal to one year. The classification of debt issued into short-term and long-term does not consider any early redemption features.</div> <div>Includes liabilities for payroll taxes and untaken vacation.</div> <div>Provisions, if any, for matters described in this Note are recorded in Global Wealth Management (item 3 and item 4) and Group Functions (item 2). Provisions, if any, for the matters described in items 1 and 6 of this Note are allocated between Global Wealth Management and Personal & Corporate Banking, and provisions, if any, for the matters described in this Note in item 5 are allocated between the Investment Bank and Group Functions.</div> <div>Includes investment fund unit-linked instruments issued</div> <div>Financial assets and liabilities are presented net on the balance sheet if UBS has the unconditional and legally enforceable right to offset the recognized amounts, both in the normal course of business and in the event of default, bankruptcy or insolvency of UBS or its counterparties, and intends either to settle on a net basis or to realize the asset and settle the liability simultaneously</div> <div>Reflects the netting potential in accordance with enforceable master netting and similar arrangements where not all criteria for a net presentation on the balance sheet have been met. Refer to “Note 22 Offsetting financial assets and financial liabilities” in the “Consolidated financial statements” section of the Annual Report 2020 for more information.</div> <div>In cases where derivative financial instruments are presented on a net basis on the balance sheet, the respective notional values of the netted derivative financial instruments are still presented on a gross basis. Notional amounts of exchange-traded agency transactions and OTC-cleared transactions entered into on behalf of clients are not disclosed, as they have a significantly different risk profile</div> <div>Other notional values relate to derivatives that are cleared through either a central counterparty or an exchange. The fair value of these derivatives is presented on the balance sheet net of the corresponding cash margin under Cash collateral receivables on derivative instruments and Cash collateral payables on derivative instruments and was not material for all periods presented.</div> <div>Comprises provisions for losses resulting from legal, liability and compliance risks</div> <div>Amounts do not include reserves against defaulted counterparties.</div> <div>Excludes lease liabilities.</div> <div>The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective ECL allowances.</div> <div>The ranges of significant unobservable inputs are represented in points, percentages and basis points. Points are a percentage of par (e.g., 100 points would be 100% of par)</div> <div>Weighted averages are provided for non-derivative financial instruments and were calculated by weighting inputs based on the fair values of the respective instruments. Weighted averages are not provided for inputs related to derivative contracts, as this would not be meaningful.</div> <div>The range of inputs is not disclosed, as there is a dispersion of values given the diverse nature of the investments.</div> <div>Debt issued designated at fair value is composed primarily of UBS structured notes, which include variable maturity notes with various equity and foreign exchange underlying risks, rates-linked and credit-linked notes, all of which have embedded derivative parameters that are considered to be unobservable. The equivalent derivative instrument parameters are presented in the respective derivative financial instruments lines in this table.</div> <div>Reflects the payment of an ordinary cash dividend of USD 0.37 per dividend-bearing share in April 2021 (first half of 2020: USD 0.365 per dividend-bearing share paid in May 2020; a second tranche of the 2020 dividend of USD 0.365 per dividend-bearing share was paid in November 2020). From 2020 onward, Swiss tax law effective 1 January 2020 requires Switzerland-domiciled companies with shares listed on a Swiss stock exchange pay no more than 50% of dividends from capital contribution reserves, with the remainder required to be paid from retained earnings.</div> <div>Includes treasury shares acquired and disposed of by the Investment Bank in its capacity as a market maker with regard to UBS shares and related derivatives, and to hedge certain issued structured debt instruments. These acquisitions and disposals are reported based on the sum of the net monthly movements.</div> <div>Mainly includes provisions related to real estate, employee benefits and operational risks.</div> <div>Includes personnel-related restructuring provisions of USD 135 million as of 30 June 2021 (31 March 2021: USD 12 million; 31 December 2020: USD 18 million) and provisions for onerous contracts of USD 40 million as of 30 June 2021 (31 March 2021: USD 44 million; 31 December 2020: USD 49 million).</div> <div>Monthly income statement items of operations with a functional currency other than the US dollar are translated into US dollars using month-end rates. Disclosed average rates for a quarter represent an average of three month-end rates, weighted according to the income and expense volumes of all operations of the Group with the same functional currency for each month. Weighted average rates for individual business divisions may deviate from the weighted average rates for the Group.</div> <div>Total Level 3 assets as of 30 June 2021 were USD 8.1 billion (31 December 2020: USD 8.3 billion). Total Level 3 liabilities as of 30 June 2021 were USD 18.4 billion (31 December 2020: USD 15.2 billion).</div> <div>In cases where derivative financial instruments are presented on a net basis on the balance sheet, the respective notional values of the netted derivative financial instruments are still presented on a gross basis. Notional amounts of exchange-traded agency transactions and OTC-cleared transactions entered into on behalf of clients are not disclosed, as they have a significantly different risk profile</div> <div>Other notional values relate to derivatives that are cleared through either a central counterparty or an exchange. The fair value of these derivatives is presented on the balance sheet net of the corresponding cash margin under Cash collateral receivables on derivative instruments and Cash collateral payables on derivative instruments and was not material for all periods presented.</div> <div>Changes in the fair value of purchased and sold non-derivative financial instruments between trade date and settlement date are recognized as derivative financial instruments.</div> <div>Financial assets and liabilities are presented net on the balance sheet if UBS has the unconditional and legally enforceable right to offset the recognized amounts, both in the normal course of business and in the event of default, bankruptcy or insolvency of UBS or its counterparties, and intends either to settle on a net basis or to realize the asset and settle the liability simultaneously.</div> <div>Includes personnel-related restructuring provisions of USD 135 million as of 30 June 2021 (31 March 2021: USD 12 million; 31 December 2020: USD 18 million) and provisions for onerous contracts of USD 40 million as of 30 June 2021 (31 March 2021: USD 44 million; 31 December 2020: USD 49 million).</div> <div>Total Level 3 assets as of 30 June 2021 were USD 8.1 billion (31 December 2020: USD 8.3 billion). Total Level 3 liabilities as of 30 June 2021 were USD 18.4 billion (31 December 2020: USD 15.2 billion).</div> <div>Net of bifurcated embedded derivatives, the fair value of which was not material for the periods presented.</div> <div>Contracts have been disclosed without regard to early termination rights. Instead, it is assumed that such contracts will transition away from IBORs without such rights being exercised</div> <div>Includes primarily EUR LIBOR positions.</div> <div>Includes loans related to revolving multi-currency credit lines.</div> <div>Includes cross-currency swaps where either leg or both legs are indexed to an IBOR.</div> <div>Includes loan commitments that can be drawn in different currencies at the client‘s discretion.</div> <div>Includes Loans and advances to customers of USD 391,076 million and Loans to financial advisors of USD 2,518 million, which are presented on the balance sheet line Other assets measured at amortized cost</div> <div>Excludes Forward starting reverse repurchase and securities borrowing agreements.</div> <div>Includes Loans and advances to customers of USD 377,791 million and Loans to financial advisors of USD 2,578 million, which are presented on the balance sheet line Other assets measured at amortized cost</div> <div>Includes Loans and advances to customers of USD 380,589 million and Loans to financial advisors of USD 2,677 million, which are presented on the balance sheet line Other assets measured at amortized cost</div> <div>Reflects the cancelation of 156,632,400 shares purchased under our 2018–2021 share repurchase program as approved by shareholders at the 2021 Annual General Meeting. For shares repurchased from 2020 onward, Swiss tax law effective 1 January 2020 requires Switzerland-domiciled companies with shares listed on a Swiss stock exchange to reduce capital contribution reserves by at least 50% of the total capital reduction amount exceeding the nominal value upon cancelation of the shares.</div> <div>Excludes other comprehensive income related to defined benefit plans and own credit that is recorded directly in Retained earnings</div> <div>Reflects the net increase in / (release of) provisions for litigation, regulatory and similar matters recognized in the income statement. Refer to Note 14 for more information</div> <div>Includes charitable donations.</div> <div>Consists of interest income from cash and balances at central banks, loans and advances to banks and customers, and cash collateral receivables on derivative instruments, as well as negative interest on amounts due to banks, customer deposits, and cash collateral payables on derivative instruments</div> <div>Includes interest income on receivables from securities financing transactions and negative interest, including fees, on payables from securities financing transactions.</div> <div>Consists of interest expense on amounts due to banks, cash collateral payables on derivative instruments, and customer deposits, as well as negative interest on cash and balances at central banks, loans and advances to banks, and cash collateral receivables on derivative instruments.</div> <div>Includes interest expense on payables from securities financing transactions and negative interest, including fees, on receivables from securities financing transactions.</div> <div>Includes interest expense on securities financing transactions designated at fair value.</div> <div>USD 3,432 million and USD 5,393 million of cash and cash equivalents (mainly reflected in Loans and advances to banks) were restricted as of 30 June 2021 and 30 June 2020, respectively. Refer to “Note 23 Restricted and transferred financial assets” in the “Consolidated financial statements” section of the Annual Report 2020 for more information.</div> <div>Includes cash proceeds from the sale of UBS’s minority investment in Clearstream Fund Centre for the period ended 30 June 2021, and dividends received from associates in both periods. Refer to the “Recent developments” section of this report for more information</div> <div>Includes only balances with an original maturity of three months or less.</div> <div>Includes curtailment gains of USD 59 million, which represent a reduction in the defined benefit obligation related to the Swiss pension plan resulting from a decrease in headcount following restructuring activities.</div> 0001610520 2020-04-01 2020-06-30 0001610520 2021-01-01 2021-03-31 0001610520 2021-01-01 2021-06-30 0001610520 2020-12-31 0001610520 2021-06-30 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2021-01-01 2021-03-31 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2021-04-01 2021-06-30 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2020-04-01 2020-06-30 0001610520 ubs:SegmentAMMember 2020-01-01 2020-06-30 0001610520 ubs:SegmentAMMember 2021-01-01 2021-06-30 0001610520 2021-04-01 2021-06-30 0001610520 2020-01-01 2020-06-30 0001610520 2021-03-31 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2021-01-01 2021-06-30 0001610520 ubs:SegmentGFMember 2020-01-01 2020-06-30 0001610520 ubs:SegmentPCBMember 2020-12-31 0001610520 ubs:SegmentIBMember 2020-12-31 0001610520 ubs:SegmentIBMember 2021-01-01 2021-06-30 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2020-01-01 2020-06-30 0001610520 ubs:SegmentGWMMember 2021-01-01 2021-06-30 0001610520 ubs:GoodsOrServicesTransferredOnPerformancebasedBasisMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentIBMember 2020-01-01 2020-06-30 0001610520 ubs:GoodsOrServicesTransferredOnPerformancebasedBasisMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentPCBMember 2020-01-01 2020-06-30 0001610520 ubs:SegmentGFMember 2021-01-01 2021-06-30 0001610520 ubs:SegmentGWMMember 2020-01-01 2020-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentAMMember 2021-04-01 2021-06-30 0001610520 ubs:GoodsOrServicesTransferredOnPerformancebasedBasisMember 2020-04-01 2020-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentPCBMember 2021-04-01 2021-06-30 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:MiscellaneousOtherProvisionsMember 2021-04-01 2021-06-30 0001610520 ubs:InterestRateContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:RepurchaseAgreementsAndCashCollateralOnSecuritiesLentMember 2021-06-30 0001610520 ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ubs:SegmentPCBMember 2021-01-01 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentIBMember 2021-04-01 2021-06-30 0001610520 ubs:CrossBorderWealthManagementBusinessesMember 2021-04-01 2021-06-30 0001610520 2020-10-01 2020-12-31 0001610520 ubs:OtherFinancialInstrumentsNetMember 2021-04-01 2021-06-30 0001610520 ubs:AuctionRateSecuritiesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2021-06-30 0001610520 ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember 2021-01-01 2021-06-30 0001610520 ubs:MadoffLuxembourgMember 2021-04-01 2021-06-30 0001610520 ubs:CreditDerivativeContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ubs:EmployeeRetirementSystemPuertoRicoMember 2021-04-01 2021-06-30 0001610520 ubs:CreditDerivativeContractsNetMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2020-01-01 2020-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2020-12-31 0001610520 ubs:SegmentGWMMember 2021-06-30 0001610520 ifrs-full:RestructuringProvisionMember 2021-04-01 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGFMember 2021-04-01 2021-06-30 0001610520 ubs:StructuredSecuritiesFinancingTransactionsMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:RetainedEarningsMember 2021-01-01 2021-06-30 0001610520 ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:LombardLoanMember 2021-06-30 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-06-30 0001610520 ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2021-03-31 0001610520 ubs:ForeignExchangeContractsNetMember 2021-04-01 2021-06-30 0001610520 ubs:OtherFinancialInstrumentsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:SharePremiumMember 2021-06-30 0001610520 ifrs-full:RetainedEarningsMember 2021-06-30 0001610520 ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:GoodsOrServicesTransferredOnRecurringBasisMember 2021-01-01 2021-03-31 0001610520 ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ubs:SegmentGFMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-01-01 2020-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ubs:NotesAndDebenturesIssuedMember 2021-01-01 2021-06-30 0001610520 2020-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromCustomersMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-03-31 0001610520 ubs:IrrevocableCommittedProlongationOfLoansMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ubs:IrrevocableCommittedProlongationOfLoansMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember 2021-04-01 2021-06-30 0001610520 ubs:AssetBackedSecuritiesMember 2021-01-01 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-06-30 0001610520 ubs:SegmentPCBMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:TopOfRangeMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember 2020-01-01 2020-06-30 0001610520 ubs:UBSFranceSACrossBorderWealthManagementBusinessesLawsuitsMember 2021-06-30 0001610520 ubs:EquityIndexContractsNetMember 2021-04-01 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ubs:PuertoRicoInsuranceCompaniesClaimsMember 2021-04-01 2021-06-30 0001610520 ubs:AuctionRateSecuritiesMember 2021-01-01 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ubs:AssetBackedSecuritiesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:TreasurySharesMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:LombardLoanMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2021-01-01 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGWMMember 2021-04-01 2021-06-30 0001610520 ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-01-01 2021-06-30 0001610520 ubs:ForexRelatedCivilLitigationMember 2021-04-01 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ubs:AuctionRateSecuritiesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember 2021-01-01 2021-03-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentIBMember 2021-06-30 0001610520 ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-01-01 2021-06-30 0001610520 ubs:PuertoRicoMattersMember 2021-04-01 2021-06-30 0001610520 ubs:StructuredSecuritiesFinancingTransactionsMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromBanksMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2019-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-01-01 2020-06-30 0001610520 ifrs-full:EquityInvestmentsMember 2021-01-01 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2020-12-31 0001610520 ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentPCBMember 2021-03-31 0001610520 ubs:ForeignExchangeContractsNetMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialLiabilitiesAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ubs:GoodsOrServicesTransferredOnRecurringBasisMember 2020-01-01 2020-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentIBMember 2021-03-31 0001610520 ubs:InterestRateContractsNetMember 2021-04-01 2021-06-30 0001610520 ubs:EquityIndexContractsNetMember 2021-01-01 2021-03-31 0001610520 ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2021-03-31 0001610520 ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialLiabilitiesAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentPCBMember 2021-06-30 0001610520 ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember 2021-01-01 2021-06-30 0001610520 ifrs-full:TreasurySharesMember 2020-06-30 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2021-01-01 2021-03-31 0001610520 ubs:ForeignExchangeContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:DebtSecuritiesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:OtherAssetsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:IssuedCapitalMember 2020-12-31 0001610520 ubs:StructuredSecuritiesFinancingTransactionsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:InterestRateContractsNetMember 2021-01-01 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ubs:GoodsOrServicesTransferredOnRecurringBasisMember 2020-04-01 2020-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGFMember 2021-03-31 0001610520 ubs:OtherFinancialInstrumentsNetMember 2021-01-01 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromBanksMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ubs:GoodsOrServicesTransferredOnPerformancebasedBasisMember 2021-01-01 2021-06-30 0001610520 ubs:AssetBackedSecuritiesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-06-30 0001610520 ubs:CreditDerivativeContractsNetMember 2021-04-01 2021-06-30 0001610520 ifrs-full:SharePremiumMember 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:IssuedCapitalMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:OtherFinancialLiabilitiesAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 2019-12-31 0001610520 ifrs-full:DebtSecuritiesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2020-12-31 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-03-31 0001610520 ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:LombardLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:FinancialIntermediariesAndHedgeFundsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-03-31 0001610520 ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2020-12-31 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2021-06-30 0001610520 ubs:EquityIndexContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ubs:SegmentGWMMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember 2021-06-30 0001610520 ubs:GoodsOrServicesTransferredOnPerformancebasedBasisMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2019-12-31 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ubs:SegmentAMMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ubs:GoodsOrServicesTransferredOnRecurringBasisMember 2021-01-01 2021-06-30 0001610520 ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ubs:SegmentAMMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityDividendYieldsMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsNetMember 2020-12-31 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2020-04-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:InterestRateContractsNetMember ubs:HistoricalVolatilityForInterestRatesMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ubs:JPYCurrencyExchangeRateMember 2020-04-01 2020-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ubs:CHFCurrencyExchangeRateMember 2020-06-30 0001610520 ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember 2020-04-01 2020-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGFMember 2021-06-30 0001610520 ubs:OtherNonfinancialLiabilitiesMember 2021-01-01 2021-06-30 0001610520 2020-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToBanksMember 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentAMMember 2021-06-30 0001610520 ifrs-full:RetainedEarningsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2019-12-31 0001610520 ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentIBMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-01-01 2021-06-30 0001610520 ubs:PuertoRicoCustomerArbitrationClaimsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:IssuedCapitalMember 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ubs:SegmentGFMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGWMMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:SharePremiumMember 2021-01-01 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:RepurchaseAgreementsAndCashCollateralOnSecuritiesLentMember 2020-12-31 0001610520 ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ubs:IrrevocableCommittedProlongationOfLoansMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentAMMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:TopOfRangeMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:MiscellaneousOtherProvisionsMember 2021-03-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember ubs:BondPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember 2020-10-01 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ubs:GoodsOrServicesTransferredOnRecurringBasisMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2019-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2019-12-31 0001610520 ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:FundingSpreadMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGWMMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2020-12-31 0001610520 ifrs-full:DebtSecuritiesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2019-12-31 0001610520 ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-06-30 0001610520 ifrs-full:RetainedEarningsMember 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2019-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:WeightedAverageMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:RestructuringProvisionMember 2021-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2020-06-30 0001610520 ubs:UBSAGCrossBorderWealthManagementBusinessesLawsuitsMember 2021-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2020-06-30 0001610520 ubs:CHFCurrencyExchangeRateMember 2020-12-31 0001610520 ubs:CHFCurrencyExchangeRateMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsNetMember 2021-06-30 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ubs:JPYCurrencyExchangeRateMember 2021-03-31 0001610520 ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:FundingSpreadMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsNetMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CreditDerivativeContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ubs:GBPCurrencyExchangeRateMember 2021-01-01 2021-03-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:CommittedRevocableCreditLinesMember 2020-12-31 0001610520 ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:RestructuringProvisionMember 2021-03-31 0001610520 ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CreditDerivativeContractsNetMember ubs:BondPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ubs:GBPCurrencyExchangeRateMember 2020-04-01 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2020-01-01 2020-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ubs:EURCurrencyExchangeRateMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember 2020-12-31 0001610520 ubs:CHFCurrencyExchangeRateMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:FundingSpreadMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember 2021-03-31 0001610520 ubs:CrossBorderWealthManagementBusinessesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ubs:GBPCurrencyExchangeRateMember 2020-01-01 2020-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2019-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsNetMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember 2020-12-31 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-06-30 0001610520 ubs:EURCurrencyExchangeRateMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ubs:ForwardStartingTransactionsReverseRepurchaseAndSecuritiesBorrowingAgreementsMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-03-31 0001610520 ubs:EURCurrencyExchangeRateMember 2021-01-01 2021-03-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ubs:EURCurrencyExchangeRateMember 2021-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:DepositsFromBanksMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:SharePremiumMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ubs:OtherFinancialLiabilitiesAtAmortisedCostMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ifrs-full:TreasurySharesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:TreasurySharesMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:RepurchaseAgreementsAndCashCollateralOnSecuritiesLentMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CreditCardMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:SmallMediumEnterpriseMember 2020-12-31 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2019-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:WeightedAverageMember ubs:CorporateAndMunicipalBondsMember ubs:BondPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:FinancialAssetsForUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:InterestRateContractsNetMember ubs:HistoricalVolatilityForInterestRatesMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:InterestRateContractsNetMember ubs:HistoricalVolatilityForInterestRatesMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityDividendYieldsMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashAndBankBalancesAtCentralBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:PreciousMetalsAndOtherPhysicalCommoditiesMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2020-12-31 0001610520 ifrs-full:MiscellaneousOtherProvisionsMember 2021-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2021-01-01 2021-06-30 0001610520 ubs:EURCurrencyExchangeRateMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityDividendYieldsMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ubs:EURCurrencyExchangeRateMember 2020-12-31 0001610520 ubs:EURCurrencyExchangeRateMember 2020-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityDividendYieldsMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:InterestRateContractsNetMember ubs:HistoricalVolatilityForInterestRatesMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ubs:JPYCurrencyExchangeRateMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:IrrevocableCommittedProlongationOfLoansMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LoanCommitmentsMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialGuaranteeContractsMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2019-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokerageReceivablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2020-06-30 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ubs:EURCurrencyExchangeRateMember 2020-04-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2019-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CashCollateralReceivablesOnDerivativeInstrumentsMember 2020-12-31 0001610520 ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:CommodityTradeFinanceMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CashAndBankBalancesAtCentralBanksMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ubs:CommittedRevocableCreditLinesMember 2021-03-31 0001610520 ubs:CHFCurrencyExchangeRateMember 2021-01-01 2021-03-31 0001610520 ubs:CHFCurrencyExchangeRateMember 2021-06-30 0001610520 ubs:JPYCurrencyExchangeRateMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ubs:CHFCurrencyExchangeRateMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2021-03-31 0001610520 ubs:CHFCurrencyExchangeRateMember 2020-04-01 2020-06-30 0001610520 ubs:CHFCurrencyExchangeRateMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansAndAdvancesToCustomersMember ubs:RealEstateLoanMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnBalanceSheetFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:NonrecurringFairValueMeasurementMember ifrs-full:OtherAssetsMember 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember 2021-04-01 2021-06-30 0001610520 ubs:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ubs:IncludedInOtherComprehensiveIncomeMember 2020-06-30 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:LoansAndAdvancesToBanksMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialAssetsAtAmortisedCostMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherFinancialAssetsAtAmortisedCostMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsNetMember ubs:BondPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ubs:EURCurrencyExchangeRateMember 2020-01-01 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember ubs:CashCollateralPayablesOnDerivativeInstrumentsMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:LoansAndAdvancesToCustomersMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CreditDerivativeContractsNetMember ubs:BondPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:AuctionRateSecuritiesMember 2021-03-31 0001610520 ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:AssetBackedSecuritiesMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialGuaranteeContractsMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:SmallMediumEnterpriseMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:FundingSpreadMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2019-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CreditDerivativeContractsNetMember 2021-04-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-06-30 0001610520 ubs:GBPCurrencyExchangeRateMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentPCBMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:SegmentPCBMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ubs:SegmentPCBMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:SegmentGWMMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ubs:SegmentGWMMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentGWMMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:SegmentAMMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:SegmentIBMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:SegmentGFMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ubs:SegmentAMMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ubs:SegmentIBMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ubs:SegmentGFMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentAMMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentIBMember 2021-04-01 2021-06-30 0001610520 ubs:SegmentGFMember 2021-04-01 2021-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2021-01-01 2021-03-31 0001610520 ifrs-full:NoncontrollingInterestsMember 2020-04-01 2020-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2020-01-01 2020-06-30 0001610520 ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommittedRevocableCreditLinesMember ubs:CommodityTradeFinanceMember 2021-03-31 0001610520 ifrs-full:InterestRateRiskMember 2021-06-30 0001610520 ifrs-full:CreditRiskMember 2021-06-30 0001610520 ifrs-full:CurrencyRiskMember 2021-06-30 0001610520 ifrs-full:EquityPriceRiskMember 2021-06-30 0001610520 ifrs-full:CommodityPriceRiskMember 2021-06-30 0001610520 ifrs-full:LoanCommitmentsMember 2021-06-30 0001610520 ubs:UnsettledPurchaseOfNonDerivativeFinancialInstrumentsMember 2021-06-30 0001610520 ubs:UnsettledSalesOfNonDerivativeFinancialInstrumentsMember 2021-06-30 0001610520 ifrs-full:InterestRateRiskMember 2021-03-31 0001610520 ifrs-full:CreditRiskMember 2021-03-31 0001610520 ifrs-full:CurrencyRiskMember 2021-03-31 0001610520 ifrs-full:EquityPriceRiskMember 2021-03-31 0001610520 ifrs-full:CommodityPriceRiskMember 2021-03-31 0001610520 ubs:UnsettledPurchaseOfNonDerivativeFinancialInstrumentsMember 2021-03-31 0001610520 ubs:UnsettledSalesOfNonDerivativeFinancialInstrumentsMember 2021-03-31 0001610520 ifrs-full:LoanCommitmentsMember 2021-03-31 0001610520 ifrs-full:InterestRateRiskMember 2020-12-31 0001610520 ifrs-full:CreditRiskMember 2020-12-31 0001610520 ifrs-full:CurrencyRiskMember 2020-12-31 0001610520 ifrs-full:EquityPriceRiskMember 2020-12-31 0001610520 ifrs-full:CommodityPriceRiskMember 2020-12-31 0001610520 ubs:UnsettledPurchaseOfNonDerivativeFinancialInstrumentsMember 2020-12-31 0001610520 ubs:UnsettledSalesOfNonDerivativeFinancialInstrumentsMember 2020-12-31 0001610520 ifrs-full:LoanCommitmentsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:GovernmentBillsBondsMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2021-03-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:ForeignExchangeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:CommodityContractsMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:BrokeragePayablesMeasuredAtFairValueThroughProfitOrLossMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-03-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember ubs:AmountDueUnderUnitLinkedInvestmentContractsMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:StructuredSecuritiesFinancingTransactionsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:RecurringFairValueMeasurementMember ubs:OverTheCounterDebtInstrumentsMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:InvestmentFundsMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-12-31 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:LoansAndAdvancesToCustomersMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2021-01-01 2021-06-30 0001610520 ifrs-full:EquityInvestmentsMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:DebtSecuritiesIssuedAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognitionMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-01-01 2021-06-30 0001610520 ubs:LIBORBenchmarkRateCHFMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateUSDMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateGBPMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateEURMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateJPYMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateXCCYMember ubs:InterstRateBenchmarkReformMember 2021-06-30 0001610520 ubs:LIBORBenchmarkRateCHFMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ubs:LIBORBenchmarkRateUSDMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ubs:LIBORBenchmarkRateGBPMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ubs:LIBORBenchmarkRateEURMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ubs:LIBORBenchmarkRateJPYMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ubs:LIBORBenchmarkRateXCCYMember ubs:InterstRateBenchmarkReformMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:GrossCarryingAmountMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:GrossCarryingAmountMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherLoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:AllowanceForCreditLossesMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LoansToFinancialAdvisorsMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:MortgagesMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:TwelvemonthExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ifrs-full:MortgagesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:RealEstateLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:CorporateLoansMember ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:SmallMediumEnterpriseMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:LombardLoanMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CreditCardMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:CommodityTradeFinanceMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:FinancialIntermediariesAndHedgeFundsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:FinancialInstrumentsCreditimpairedMember ifrs-full:LifetimeExpectedCreditLossesMember ubs:OtherOffbalanceSheetCommitmentsMember ubs:OffbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:IssuedCapitalMember 2019-12-31 0001610520 ifrs-full:SharePremiumMember 2019-12-31 0001610520 ifrs-full:TreasurySharesMember 2019-12-31 0001610520 ifrs-full:RetainedEarningsMember 2019-12-31 0001610520 ifrs-full:OtherReservesMember 2019-12-31 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2019-12-31 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2019-12-31 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2019-12-31 0001610520 ifrs-full:TreasurySharesMember 2020-01-01 2020-06-30 0001610520 ifrs-full:SharePremiumMember 2020-01-01 2020-06-30 0001610520 ifrs-full:RetainedEarningsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:IssuedCapitalMember 2021-01-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-12-31 0001610520 ifrs-full:OtherReservesMember 2020-01-01 2020-06-30 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2020-01-01 2020-06-30 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2020-01-01 2020-06-30 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2020-01-01 2020-06-30 0001610520 ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember 2020-01-01 2020-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2020-12-31 0001610520 ifrs-full:OtherReservesMember 2021-01-01 2021-06-30 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2021-01-01 2021-06-30 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2021-01-01 2021-06-30 0001610520 ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember 2021-01-01 2021-06-30 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2021-01-01 2021-06-30 0001610520 ifrs-full:OtherReservesMember 2020-06-30 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2020-06-30 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2020-06-30 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2020-06-30 0001610520 ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember 2020-06-30 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2020-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2020-06-30 0001610520 ifrs-full:OtherReservesMember 2020-12-31 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2020-12-31 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2020-12-31 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2020-12-31 0001610520 ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember 2020-12-31 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2020-12-31 0001610520 ifrs-full:NoncontrollingInterestsMember 2020-12-31 0001610520 ifrs-full:OtherReservesMember 2021-06-30 0001610520 ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember 2021-06-30 0001610520 ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember 2021-06-30 0001610520 ifrs-full:ReserveOfCashFlowHedgesMember 2021-06-30 0001610520 ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember 2021-06-30 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2021-06-30 0001610520 ifrs-full:NoncontrollingInterestsMember 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountRateMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CorporateAndMunicipalBondsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:DiscountRateMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CorporateAndMunicipalBondsMember 2020-10-01 2020-12-31 0001610520 ifrs-full:DiscountRateMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:CorporateAndMunicipalBondsMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:TopOfRangeMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:WeightedAverageMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:TopOfRangeMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:MarketComparablePricesMember ifrs-full:WeightedAverageMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember ubs:LoanPriceEquivalentMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:MarketComparableAndSecuritizationModelMember ubs:TradedLoansLoansAtFairValueLoanCommitmentsAndGuaranteesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:AuctionRateSecuritiesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:AuctionRateSecuritiesMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ubs:AuctionRateSecuritiesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:TopOfRangeMember ubs:AuctionRateSecuritiesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:CreditSpreadMeasurementInputMember ifrs-full:DiscountedCashFlowMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:WeightedAverageMember ubs:AuctionRateSecuritiesMember 2020-10-01 2020-12-31 0001610520 ifrs-full:DerivativesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember 2020-12-31 0001610520 ifrs-full:DerivativesMember 2021-06-30 0001610520 ifrs-full:DerivativesMember 2021-03-31 0001610520 ifrs-full:DerivativesMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2020-12-31 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:InterestRateContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:EquityIndexContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:CreditDerivativeContractsMember 2021-06-30 0001610520 ifrs-full:DerivativesMember ifrs-full:Level3OfFairValueHierarchyMember ubs:OtherFinancialInstrumentsNetMember 2021-06-30 0001610520 ifrs-full:RestructuringProvisionMember 2020-12-31 0001610520 ifrs-full:MiscellaneousOtherProvisionsMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGWMMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentPCBMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentAMMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentIBMember 2020-12-31 0001610520 ifrs-full:LegalProceedingsProvisionMember ubs:SegmentGFMember 2020-12-31 0001610520 ifrs-full:EquityAttributableToOwnersOfParentMember 2019-12-31 0001610520 ifrs-full:NoncontrollingInterestsMember 2019-12-31 0001610520 ubs:MadoffUSMember 2021-04-01 2021-06-30 0001610520 ubs:TradingRelatedInquiriesMember 2021-04-01 2021-06-30 0001610520 ubs:UpsideScenarioMember 2021-01-01 2021-03-31 0001610520 ubs:UpsideScenarioMember 2021-04-01 2021-06-30 0001610520 ubs:UpsideScenarioMember 2020-01-01 2020-03-31 0001610520 ubs:BaselineScenarioMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember 2021-01-01 2021-03-31 0001610520 ubs:BaselineScenarioMember 2020-01-01 2020-03-31 0001610520 ubs:MildDownsideScenarioMember 2021-04-01 2021-06-30 0001610520 ubs:MildDownsideScenarioMember 2021-01-01 2021-03-31 0001610520 ubs:MildDownsideScenarioMember 2020-01-01 2020-03-31 0001610520 ubs:SevereDownsideScenarioMember 2021-04-01 2021-06-30 0001610520 ubs:SevereDownsideScenarioMember 2021-01-01 2021-03-31 0001610520 ubs:SevereDownsideScenarioMember 2020-01-01 2020-03-31 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:PostmodelCreditLossExpenseAdjustmentMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:ScenariodrivenModelOutputEffectsMember 2021-04-01 2021-06-30 0001610520 ifrs-full:FinancialInstrumentsNotCreditimpairedMember ubs:ScenariodrivenModelOutputEffectsRetainedMember 2021-04-01 2021-06-30 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2020-12-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-03-31 0001610520 ifrs-full:GrossCarryingAmountMember ubs:LoansAndAdvancesToCustomersMember ubs:OnbalanceSheetLoanPortfolioMember 2021-06-30 0001610520 ubs:SOFRMember 2021-06-30 0001610520 ubs:SARONMember 2021-06-30 0001610520 ubs:SONIAMember 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:HistoricalVolatilityForSharesMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember 2021-04-01 2021-06-30 0001610520 ifrs-full:HistoricalVolatilityForSharesMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:HistoricalVolatilityForSharesMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:HistoricalVolatilityForSharesMeasurementInputMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityToFXCorrelationMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityToFXCorrelationMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityToEquityCorrelationMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityToEquityCorrelationMeasurementInputMember 2021-04-01 2021-06-30 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityToFXCorrelationMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityToFXCorrelationMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:BottomOfRangeMember ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ubs:EquityIndexContractsNetMember ubs:EquityToEquityCorrelationMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:OptionPricingModelMember ifrs-full:TopOfRangeMember ubs:EquityIndexContractsNetMember ubs:EquityToEquityCorrelationMeasurementInputMember 2020-10-01 2020-12-31 0001610520 ubs:SegmentGWMMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentGWMMember 2020-04-01 2020-06-30 0001610520 ubs:SegmentPCBMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentPCBMember 2020-04-01 2020-06-30 0001610520 ubs:SegmentAMMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentAMMember 2020-04-01 2020-06-30 0001610520 ubs:SegmentIBMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentIBMember 2020-04-01 2020-06-30 0001610520 ubs:SegmentGFMember 2021-01-01 2021-03-31 0001610520 ubs:SegmentGFMember 2020-04-01 2020-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember ubs:GrossDomesticProductMember country:US 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember ubs:GrossDomesticProductMember ubs:EurozoneMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember ubs:GrossDomesticProductMember country:CH 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember ubs:GrossDomesticProductMember country:US 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember ubs:GrossDomesticProductMember ubs:EurozoneMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember ubs:GrossDomesticProductMember country:CH 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ubs:GrossDomesticProductMember country:US 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ubs:GrossDomesticProductMember ubs:EurozoneMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ubs:GrossDomesticProductMember country:CH 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember country:US ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember ubs:EurozoneMember ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember country:CH ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember country:US ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember ubs:EurozoneMember ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember country:CH ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember country:US ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ubs:EurozoneMember ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember country:CH ubs:UnemploymentRateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember country:US ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember ubs:EurozoneMember ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:OneYearBeforeReportingYearMember country:CH ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember country:US ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember ubs:EurozoneMember ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:NotLaterThanOneYearMember country:CH ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember country:US ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ubs:EurozoneMember ubs:RealEstateMember 2021-04-01 2021-06-30 0001610520 ubs:BaselineScenarioMember ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember country:CH ubs:RealEstateMember 2021-04-01 2021-06-30 iso4217:EUR iso4217:USD xbrli:pure xbrli:shares iso4217:USD xbrli:shares