Quarterly report pursuant to Section 13 or 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
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 942   $ 929
Credit card      
Variable Interest Entity [Line Items]      
Principal balance outstanding $ 6,600   $ 6,800
Transferred financial assets, stated interest rate 0.00%   0.00%
Resecuritization Trusts      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations $ 1,000 $ 7,400  
Resecuritization Trusts | Debt securities      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations 178 $ 526  
Municipal Bond Trusts | Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 3,600   $ 3,500
Weighted average remaining life of bonds held in the trusts in years 6 years 6 months