Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Other Asset-backed Securitizations, Additional Information (Details)

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Securitizations and Other Variable Interest Entities - Other Asset-backed Securitizations, Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 968 $ 929  
Trading account assets | Level 2      
Variable Interest Entity [Line Items]      
Securities received as resecuritization proceeds   2,400  
Debt securities | Level 2      
Variable Interest Entity [Line Items]      
Securities received as resecuritization proceeds   2,100  
Held-to-maturity Securities | Level 2      
Variable Interest Entity [Line Items]      
Securities received as resecuritization proceeds   1,700  
Credit card      
Variable Interest Entity [Line Items]      
Principal balance outstanding $ 6,500 $ 6,800  
Transferred financial assets, stated interest rate 0.00% 0.00%  
Credit card | Senior securities:      
Variable Interest Entity [Line Items]      
Transferred financial assets, amount $ 1,000 $ 1,000 $ 1,300
Credit card | Junior Lien      
Variable Interest Entity [Line Items]      
Transferred financial assets, amount 161 161 202
Resecuritization Trusts      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations 28,900 39,000 24,400
Resecuritization Trusts | Securities      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations 2,200 6,100 $ 5,200
Municipal Bond Trusts | Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 4,100 $ 3,500  
Weighted average remaining life of bonds held in the trusts in years 6 years 3 months 18 days