Hedge accounting (Tables)	12 Months Ended
Hedge accounting (Tables)	Dec. 31, 2021
Disclosure Of Fair Value Hedge Accounting [Table]
Disclosure Of Detailed Information About Hedging Instruments Explanatory	All hedges: designated hedging instruments and hedge ineffectiveness As of or for the year ended 31.12.21 Carrying amount USD million Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 89,525 0 7 (1,604) 1,602 (2) Cash flow hedges 79,573 12 1 (1,185) 990 (196) Foreign exchange risk Fair value hedges 2 27,875 87 261 (2,139) 2,181 42 Hedges of net investments in foreign operations 13,939 23 105 497 (497) 0 As of or for the year ended 31.12.20 Carrying amount USD million Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 80,759 12 1,231 (1,247) (16) Cash flow hedges 72,732 18 2,213 (2,012) 201 Foreign exchange risk Fair value hedges 2 21,555 449 7 (1,735) 1,715 (20) Hedges of net investments in foreign operations 13,775 3 194 (937) 936 (2) 1 Amounts used as the basis for recognizing hedge ineffectiveness for the period. 2 The foreign currency basis spread of cross-currency swaps designated as hedging derivatives is excluded from the hedge accounting designation and accounted for as a cost of hedging with amounts deferred in Other comprehensive income within Equity.
Disclosure of fair value hedge accounting [text block]	Fair value hedges: designated hedged items USD million 31.12.21 31.12.20 Interest rate risk FX risk Interest rate risk FX risk Debt issued measured at amortized cost Carrying amount of designated debt issued 74,700 27,875 70,429 21,555 of which: accumulated amount of fair value hedge adjustment 478 2,401 Other financial assets measured at amortized cost – debt securities Carrying amount of designated debt securities 2,677 3,242 of which: accumulated amount of fair value hedge adjustment (7) (38) Loans and advances to customers 1 Carrying amount of designated loans 13,835 10,374 of which: accumulated amount of fair value hedge adjustment 2 (109) 100 of which: accumulated amount of fair value hedge adjustment subject to amortization attributable to the portion of the portfolio that ceased to be part of hedge accounting 2 3 111 1 Prior to 31 December 2021, these amounts were designated in fair value hedges of portfolio interest rate risk under IAS 39. 2 As of 31 December 2021, the amount was presented within Loans and advances to customers, whereas prior to 1 January 2021 amounts were presented within either Other financial assets measured at amortized cost or Other financial liabilities measured at amortized cost.
Disclosure of fair value hedge accounting related to debt issued and debt securities [text block]	Fair value hedges: profile of the timing of the nominal amount of the hedging instrument 31.12.21 USD billion Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 0 8 10 49 22 90 Cross-currency swaps 1 1 6 13 6 28 31.12.20 USD billion Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 1 0 4 9 46 12 70 Cross-currency swaps 0 0 4 16 2 22 1 In accordance with IFRS 7 requirements, the fair value hedges of portfolio interest rate risk related to loans and advances to customers designated under IAS 39 are not included.
Disclosure of cash flow hedge accounting [text block]	Cash flow hedge reserve on a pre-tax basis USD million 31.12.21 31.12.20 Amounts related to hedge relationships for which hedge accounting continues to be applied 26 2,560 Amounts related to hedge relationships for which hedge accounting is no longer applied 743 296 Total other comprehensive income recognized directly in equity related to cash flow hedges, on a pre-tax basis 769 2,856
Disclosure of foreign currecny translation hedge accounting [text block]	Foreign currency translation reserve on a pre-tax basis USD million 31.12.21 31.12.20 Amounts related to hedge relationships for which hedge accounting continues to be applied (45) (559) Amounts related to hedge relationships for which hedge accounting is no longer applied 262 268 Total other comprehensive income recognized directly in equity related to hedging instruments designated as net investment hedges, on a pre-tax basis 217 (291)
Disclosure Hedge Accounting Referencing LIBOR Explanatory	Hedging instruments referencing LIBOR 31.12.21 31.12.20 Carrying amount Carrying amount USD million Notional amount Derivative financial assets Derivative financial liabilities Notional amount Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 23,367 0 0 37,146 1 (12) Cash flow hedges 10,803 0 0 11,179 0 0
UBS AG
Disclosure Of Fair Value Hedge Accounting [Table]
Disclosure Of Detailed Information About Hedging Instruments Explanatory	All hedges: designated hedging instruments and hedge ineffectiveness As of or for the year ended 31.12.21 USD million Notional amount Carrying amount Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 89,525 0 7 (1,604) 1,602 (2) Cash flow hedges 79,573 12 1 (1,185) 990 (196) Foreign exchange risk Fair value hedges 2 27,875 87 261 (2,139) 2,181 42 Hedges of net investments in foreign operations 13,761 23 103 492 (491) 0 As of or for the year ended 31.12.20 USD million Notional amount Carrying amount Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 80,759 12 1,231 (1,247) (16) Cash flow hedges 72,732 18 2,213 (2,012) 201 Foreign exchange risk Fair value hedges 2 21,555 449 7 (1,735) 1,715 (20) Hedges of net investments in foreign operations 13,634 3 193 (939) 938 (2) 1 Amounts used as the basis for recognizing hedge ineffectiveness for the period. 2 The foreign currency basis spread of cross -currency swaps designated as hedging derivatives is excluded from the hedge accounting designation and accounted for as a cost of hedging with amounts deferred in Other comprehensive income within Equity.
Disclosure of fair value hedge accounting [text block]	Fair value hedges: designated hedged items USD million 31.12.21 31.12.20 Interest rate risk FX risk Interest rate risk FX risk Debt issued measured at amortized cost Carrying amount of designated debt issued 21,653 11,392 24,247 10,889 of which: accumulated amount of fair value hedge adjustment 261 761 Funding from UBS Group AG Carrying amount of designated debt instruments 53,047 16,483 46,182 10,666 of which: accumulated amount of fair value hedge adjustment 218 1,640 Other financial assets measured at amortized cost – debt securities Carrying amount of designated debt securities 2,677 3,242 of which: accumulated amount of fair value hedge adjustment (7) (38) Loans and advances to customers 1 Carrying amount of designated loans 13,835 10,374 of which: accumulated amount of fair value hedge adjustment 2 (109) 100 of which: accumulated amount of fair value hedge adjustment subject to amortization attributable to the portion of the portfolio that ceased to be part of hedge accounting 2 3 111 1 Prior to 31 December 2021, these amounts were designated in fair value hedges of portfolio interest rate risk under IAS 39. 2 As of 31 December 2021, the amount was presented within Loans and advances to customers, whereas prior to 1 January 2021 amounts were presented within either Other financial assets measured at amortized cost or Other financial liabilities measured at amortized cost.
Disclosure of fair value hedge accounting related to debt issued and debt securities [text block]	Fair value hedges: profile of the timing of the nominal amount of the hedging instrument 31.12.21 USD billion Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 0 8 10 49 22 90 Cross-currency swaps 1 1 6 13 6 28 31.12.20 USD billion Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 1 0 4 9 46 12 70 Cross-currency swaps 0 0 4 16 2 22 1 In accordance with IFRS 7 requirements, the fair value hedges of portfolio interest rate risk related to loans and advances to customers designated under IAS 39 are not included.
Disclosure of cash flow hedge accounting [text block]	Cash flow hedge reserve on a pre-tax basis USD million 31.12.21 31.12.20 Amounts related to hedge relationships for which hedge accounting continues to be applied 26 2,560 Amounts related to hedge relationships for which hedge accounting is no longer applied 743 296 Total other comprehensive income recognized directly in equity related to cash flow hedges, on a pre-tax basis 769 2,856
Disclosure of foreign currecny translation hedge accounting [text block]	Foreign currency translation reserve on a pre-tax basis USD million 31.12.21 31.12.20 Amounts related to hedge relationships for which hedge accounting continues to be applied (61) (569) Amounts related to hedge relationships for which hedge accounting is no longer applied 262 268 Total other comprehensive income recognized directly in equity related to hedging instruments designated as net investment hedges, on a pre-tax basis 201 (302)
Disclosure Hedge Accounting Referencing LIBOR Explanatory	Hedging instruments referencing LIBOR 31.12.21 31.12.20 Carrying amount Carrying amount USD million Notional amount Derivative financial assets Derivative financial liabilities Notional amount Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 23,367 0 0 37,146 1 (12) Cash flow hedges 10,803 0 0 11,179 0 0