Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Home Equity Loan, Credit Card and Other Asset-backed VIEs (Details)

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Securitizations and Other Variable Interest Entities - Home Equity Loan, Credit Card and Other Asset-backed VIEs (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
On-balance sheet assets        
Trading account assets $ 247,080 $ 198,854    
Debt securities carried at fair value 308,073 246,601    
Held-to-maturity securities 674,591 438,279    
Total assets 3,169,495 2,819,627  
Loans and leases 979,124 927,861    
Allowance for loan and lease losses (12,387) (18,802) $ (9,416) $ (9,601)
Other assets 163,869 135,203    
On-balance sheet liabilities        
Long-term debt 280,117 262,934    
Total liabilities 2,899,429 2,546,703    
Consolidated VIEs        
On-balance sheet assets        
Trading account assets 5,004 5,225    
Total assets 21,370 28,555    
Loans and leases 17,135 23,636    
Allowance for loan and lease losses (958) (1,693)    
Other assets 189 1,387    
On-balance sheet liabilities        
Long-term debt 3,587 7,053    
All other liabilities 7 16    
Total liabilities 3,841 7,523    
Home equity | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 152 206    
On-balance sheet assets        
Total retained positions 1 2    
Total assets 430 609    
Home equity | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 45 58    
On-balance sheet assets        
Trading account assets 0 0    
Total assets 157 236    
Loans and leases 140 218    
Allowance for loan and lease losses 14 14    
Other assets 3 4    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 113 178    
All other liabilities 0 0    
Total liabilities 113 178    
Home equity | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 0 0    
Debt securities carried at fair value 1 2    
Held-to-maturity securities 0 0    
Credit card | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 0 0    
On-balance sheet assets        
Total retained positions 0 0    
Total assets 0 0    
Credit card | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 10,279 14,606    
On-balance sheet assets        
Trading account assets 0 0    
Total assets 13,534 20,895    
Loans and leases 14,434 21,310    
Allowance for loan and lease losses (970) (1,704)    
Other assets 70 1,289    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 3,248 6,273    
All other liabilities 7 16    
Total liabilities 3,255 6,289    
Residual interests 4,300 7,600    
Credit card | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 0 0    
Debt securities carried at fair value 0 0    
Held-to-maturity securities 0 0    
Resecuritization Trusts | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 6,089 8,543    
On-balance sheet assets        
Total retained positions 6,089 8,543    
Total assets 18,633 17,250    
Resecuritization Trusts | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 680 217    
On-balance sheet assets        
Trading account assets 686 217    
Total assets 686 217    
Loans and leases 0 0    
Allowance for loan and lease losses 0 0    
Other assets 0 0    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 6 0    
All other liabilities 0 0    
Total liabilities 6 0    
Resecuritization Trusts | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 1,030 948    
Debt securities carried at fair value 1,903 2,727    
Held-to-maturity securities 3,156 4,868    
Municipal Bond Trusts | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 4,094 3,507    
On-balance sheet assets        
Total retained positions 0 0    
Total assets 4,655 4,042    
Municipal Bond Trusts | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 210 1,030    
On-balance sheet assets        
Trading account assets 122 990    
Total assets 210 1,030    
Loans and leases 0 0    
Allowance for loan and lease losses 0 0    
Other assets 88 40    
On-balance sheet liabilities        
Short-term borrowings 196 432    
Long-term debt 0 0    
All other liabilities 0 0    
Total liabilities 196 432    
Municipal Bond Trusts | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 0 0    
Debt securities carried at fair value 0 0    
Held-to-maturity securities $ 0 $ 0