v3.25.4
DERIVATIVES - Fair Value Hedges (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Gain (loss) on fair value hedges      
Gain (loss) on derivatives, mark to market approach $ 476 $ 321  
Gain (loss) on derivatives, amortization approach 47 75  
Other revenue      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges (2,781) 545 $ 1,387
Gain (loss) on the hedged item in designated and qualifying fair value hedges 2,781 (545) (1,387)
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 728 432 314
Net interest income      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges (750) (1,073) (804)
Gain (loss) on the hedged item in designated and qualifying fair value hedges 745 1,071 795
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 0 0 0
Interest rate hedges | Other revenue      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges 0 0 0
Gain (loss) on the hedged item in designated and qualifying fair value hedges 0 0 0
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 0 0 0
Interest rate hedges | Net interest income      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges (750) (1,073) (804)
Gain (loss) on the hedged item in designated and qualifying fair value hedges 745 1,071 795
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 0 0 0
Foreign exchange contracts      
Gain (loss) on fair value hedges      
Cross-currency basis included in accumulated other comprehensive income 21 (19)  
Foreign exchange contracts | Other revenue      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges 570 (112) 1,433
Gain (loss) on the hedged item in designated and qualifying fair value hedges (570) 112 (1,433)
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 205 36 2
Foreign exchange contracts | Net interest income      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges 0 0 0
Gain (loss) on the hedged item in designated and qualifying fair value hedges 0 0 0
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 0 0 0
Commodity hedges | Other revenue      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges (3,351) 657 (46)
Gain (loss) on the hedged item in designated and qualifying fair value hedges 3,351 (657) 46
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges 523 396 312
Commodity hedges | Net interest income      
Gain (loss) on fair value hedges      
Gain (loss) on the hedging derivatives included in assessment of the effectiveness of fair value hedges 0 0 0
Gain (loss) on the hedged item in designated and qualifying fair value hedges 0 0 0
Net gain (loss) on the hedging derivatives excluded from assessment of the effectiveness of fair value hedges $ 0 $ 0 $ 0