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FVM - Valuation adjustments reserves on the balance sheet (Detail) - USD ($)
$ in Millions
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Valuation Adjustment Reserves On The Balance Sheet [Line Items]      
Own credit adjustments on financial liabilities designated at fair value $ 142 $ 624 $ 556
of which: debt issued designated at fair value 46 495 453
of which: other financial liabilities designated at fair value 96 129 103
Credit valuation adjustments (151) (33) (33)
Funding / Debit valuation adjustments (172) (101) (46)
Other valuation adjustments (2,911) (801) (839)
of which: liquidity (1,905) (299) (311)
of which: model uncertainty (1,005) $ (502) $ (529)
Credit Suisse      
Valuation Adjustment Reserves On The Balance Sheet [Line Items]      
Own credit adjustments on financial liabilities designated at fair value (221)    
Credit valuation adjustments 117    
Funding / Debit valuation adjustments 73    
of which: liquidity 1,630    
of which: model uncertainty $ 555