Quarterly report [Sections 13 or 15(d)]

Fair Value Option - Gains (Losses) Related to Assets and Liabilities (Details)

v3.25.2
Fair Value Option - Gains (Losses) Related to Assets and Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option $ (483) $ (712)   $ 1,555 $ 1,180
Federal funds sold and securities borrowed or purchased under agreements to resell          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 188 77 $ 320 104  
Loans reported as trading account assets          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 63 20 175 5  
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (47) (32) 113 (64)  
Trading inventory – other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 127 (1,130) 1,834 781  
Consumer and commercial loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 60 50 79 75  
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (2) 13 (2) 16  
Loans held-for-sale          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 17 (7) 77 (17)  
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option 6 (2) 7 (1)  
Short-term borrowings          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 28 75 69 73  
Unfunded loan commitments          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (11) (6) (20) (20)  
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (11) (6) (20) (20)  
Accrued expenses and other liabilities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (8) 237 (15) 398  
Long-term debt          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (628) 51 (895) 247  
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option 0 0 0 (3)  
Other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (319) (79) (444) (91)  
Market making and similar activities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (314) (702)   1,604 1,321
Market making and similar activities | Federal funds sold and securities borrowed or purchased under agreements to resell          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 189 78 323 108  
Market making and similar activities | Loans reported as trading account assets          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 60 20 172 5  
Market making and similar activities | Trading inventory – other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 127 (1,130) 1,834 781  
Market making and similar activities | Consumer and commercial loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 63 36 81 56  
Market making and similar activities | Loans held-for-sale          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 0 0 0 0  
Market making and similar activities | Short-term borrowings          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 28 75 69 73  
Market making and similar activities | Unfunded loan commitments          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 0 0 0 0  
Market making and similar activities | Accrued expenses and other liabilities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 1 237 (6) 398  
Market making and similar activities | Long-term debt          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (622) 58 (877) 267  
Market making and similar activities | Other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (160) (76) (275) (84)  
Other Income          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (169) (10)   (49) $ (141)
Other Income | Federal funds sold and securities borrowed or purchased under agreements to resell          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (1) (1) (3) (4)  
Other Income | Loans reported as trading account assets          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 3 0 3 0  
Other Income | Trading inventory – other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 0 0 0 0  
Other Income | Consumer and commercial loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (3) 14 (2) 19  
Other Income | Loans held-for-sale          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 17 (7) 77 (17)  
Other Income | Short-term borrowings          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 0 0 0 0  
Other Income | Unfunded loan commitments          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (11) (6) (20) (20)  
Other Income | Accrued expenses and other liabilities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (9) 0 (9) 0  
Other Income | Long-term debt          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (6) (7) (18) (20)  
Other Income | Other          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option $ (159) $ (3) $ (169) $ (7)