v3.25.4
Derivatives, Notional or Contractual Amounts and Fair Values of Derivatives (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Fair value derivative assets, gross $ 84,530 $ 98,709
Fair value derivative assets, netting (62,720) (78,697)
Derivative assets 21,810 20,012
Fair value of derivative liabilities, gross 86,956 99,349
Fair value derivative liabilities, netting (73,332) (83,014)
Derivative liabilities $ 13,624 $ 16,335
Derivative asset, statement of financial position [Extensible Enumeration] Trading Assets Trading Assets
Derivative liability, statement of financial position [Extensible Enumeration] Trading Liabilities Trading Liabilities
Designated as hedging instrument [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Fair value derivative assets, gross $ 473 $ 381
Fair value of derivative liabilities, gross 1,311 1,243
Designated as hedging instrument [Member] | Interest rate contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 377,837 294,127
Fair value derivative assets, gross 447 352
Fair value of derivative liabilities, gross 852 863
Designated as hedging instrument [Member] | Commodity contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 8,854 4,756
Fair value derivative assets, gross 2 17
Fair value of derivative liabilities, gross 279 10
Designated as hedging instrument [Member] | Foreign exchange contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 6,455 3,326
Fair value derivative assets, gross 24 12
Fair value of derivative liabilities, gross 180 370
Not designated as hedging instrument [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Fair value derivative assets, gross 84,057 98,328
Fair value of derivative liabilities, gross 85,645 98,106
Not designated as hedging instrument [Member] | Interest rate contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 11,919,067 9,510,281
Fair value derivative assets, gross 21,896 28,463
Fair value of derivative liabilities, gross 21,923 30,272
Not designated as hedging instrument [Member] | Commodity contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 117,863 96,321
Fair value derivative assets, gross 3,245 2,624
Fair value of derivative liabilities, gross 4,126 1,623
Not designated as hedging instrument [Member] | Equity contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 634,436 487,097
Fair value derivative assets, gross 20,788 15,201
Fair value of derivative liabilities, gross 22,714 15,606
Not designated as hedging instrument [Member] | Foreign exchange contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 5,601,838 3,506,412
Fair value derivative assets, gross 38,047 51,944
Fair value of derivative liabilities, gross 36,797 50,555
Not designated as hedging instrument [Member] | Credit contracts [Member]    
Notional Or Contractual Amounts And Fair Values For Derivatives [Abstract]    
Notional or contractual amount 62,336 47,557
Fair value derivative assets, gross 81 96
Fair value of derivative liabilities, gross $ 85 $ 50