Quarterly report pursuant to Section 13 or 15(d)

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

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Fair Value Option - Gains (Losses) Related to Assets and Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option $ 2,267 $ 779
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 (15) 57
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (32) 40
Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 1,911 1,728
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 25 (93)
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option 3 24
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 (10) 20
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option 1 2
Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (14) (24)
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (14) (24)
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 161 (12)
Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 196 (934)
Gains (Losses) Related to Borrower-specific Credit Risk for Assets and Liabilities Accounted for Under the Fair Value Option (3) 0
Other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option 13 37
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 2,306 778
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 (15) 57
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 1,911 1,728
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 20 (123)
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
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
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 161 (12)
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 209 (918)
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 20 46
Other Income    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option (39) 1
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 0 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
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 5 30
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 (10) 20
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 (14) (24)
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 0 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 (13) (16)
Other Income | Other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Related to Assets and Liabilities Accounted for Under the Fair Value Option $ (7) $ (9)