Annual report pursuant to Section 13 and 15(d)

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

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Securitizations and Other Variable Interest Entities - Other Asset-backed Securitizations, Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 978 $ 968  
Credit card      
Variable Interest Entity [Line Items]      
Principal balance outstanding $ 6,700 $ 6,500  
Transferred financial assets, stated interest rate 0.00% 0.00%  
Credit card | Senior securities:      
Variable Interest Entity [Line Items]      
Transferred financial assets, amount $ 2,300 $ 1,000 $ 1,000
Credit card | Junior Lien      
Variable Interest Entity [Line Items]      
Transferred financial assets, amount 363 161 161
Resecuritization Trusts      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations 21,800 28,900 39,000
Securities      
Variable Interest Entity [Line Items]      
Cash proceeds from new securitizations 2,400 2,200 6,100
Total trading account assets | Fair Value, Inputs, Level 2      
Variable Interest Entity [Line Items]      
Resecuritization proceeds     2,400
AFS securities | Fair Value, Inputs, Level 2      
Variable Interest Entity [Line Items]      
Resecuritization proceeds     2,100
Debt Securities, Held To Maturity | Fair Value, Inputs, Level 2      
Variable Interest Entity [Line Items]      
Resecuritization proceeds     $ 1,700
Municipal Bond Trusts | Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Liquidity commitments to unconsolidated securitization trusts $ 2,500 $ 4,100  
Weighted average remaining life of bonds held in the trusts in years 8 years 8 months 12 days