Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Fair Value Option - Gains (Losses) Relating to Assets and Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option $ 282 $ (2,358)
Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 112 (387)
Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (730) (2,793)
Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 90 (441)
Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 413 517
Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 5 (116)
Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 370 900
Other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 22 (38)
Market making and similar activities    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 264 (1,817)
Market making and similar activities | Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 112 (387)
Market making and similar activities | Trading inventory – other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (730) (2,793)
Market making and similar activities | Consumer and commercial loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 71 (83)
Market making and similar activities | Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 413 517
Market making and similar activities | Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 0 0
Market making and similar activities | Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 386 916
Market making and similar activities | Other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 12 13
Other Income    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 18 (541)
Other Income | Loans reported as trading account assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating 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) Relating 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) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 19 (358)
Other Income | Short-term borrowings    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 0 0
Other Income | Unfunded loan commitments    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 5 (116)
Other Income | Long-term debt    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (16) (16)
Other Income | Other    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option $ 10 $ (51)