Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Fair Value Option - Gains (Losses) Relating to Assets and Liabilities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option $ 995 $ 5,061 $ 3,349
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 107 203 8
Trading inventory – other      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 3,216 5,795 1,750
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 19 104 (475)
Loans held-for-sale      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 103 98 25
Short-term borrowings      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (170) (24) 2
Unfunded loan commitments      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (65) 79 (49)
Long-term debt      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (2,228) (1,176) 2,064
Other      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 13 (18) 24
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 1,035 4,977 3,502
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 107 203 8
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 3,216 5,795 1,750
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 22 92 (422)
Market making and similar activities | Loans held-for-sale      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 0 0 1
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 (170) (24) 2
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 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 (2,175) (1,098) 2,157
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 35 9 6
Other Income      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option (40) 84 (153)
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 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 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 (3) 12 (53)
Other Income | Loans held-for-sale      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option 103 98 24
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 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 (65) 79 (49)
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 (53) (78) (93)
Other Income | Other      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Gains (Losses) Relating to Assets and Liabilities Accounted for Under the Fair Value Option $ (22) $ (27) $ 18