v3.26.1
FAIR VALUE ELECTIONS - Changes in Fair Value Gains (Losses) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Securities borrowed and purchased under agreements to resell        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value $ (28) $ 114 $ (134) $ 122
Trading account assets        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 3 19 (1) 39
Investments        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 0 0 0 0
Corporate loans        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value (333) 914 (42) 952
Consumer loans        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 1 (3) 1 3
Loans        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value (332) 911 (41) 955
MSRs        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 10 12 15 (3)
Mortgage loans HFS        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value (9) 15 (14) 30
Total other assets        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 1 27 1 27
Total assets        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value (356) 1,071 (175) 1,143
Deposits        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 96 (50) 120 (95)
Securities loaned and sold under agreements to repurchase        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 19 (7) 113 12
Trading account liabilities        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 43 29 (158) (153)
Short-term borrowings        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value 2,333 235 2,787 (276)
Long-term debt        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value (5,374) (4,885) (3,023) (5,138)
Total liabilities        
Fair Value, Balance Sheet Grouping, Financial Statement Captions.        
Gain (loss) from changes in fair value $ (2,883) $ (4,678) $ (161) $ (5,650)