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, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
On-balance sheet assets        
Trading account assets $ 296,108 $ 247,080    
Debt securities carried at fair value 229,994 308,073    
Held-to-maturity securities 632,863 674,591    
Total assets 3,051,375 3,169,495  
Loans and leases 1,045,747 979,124    
Allowance for loan and lease losses (12,682) (12,387) $ (18,802) $ (12,358)
Other assets 150,759 163,869    
On-balance sheet liabilities        
Long-term debt 275,982 280,117    
Total liabilities 2,778,178 2,899,429    
Consolidated VIEs        
On-balance sheet assets        
Trading account assets 2,816 5,004    
Total assets 18,873 21,370    
Loans and leases 16,738 17,135    
Allowance for loan and lease losses (797) (958)    
Other assets 116 189    
On-balance sheet liabilities        
Long-term debt 4,581 3,587    
All other liabilities 13 7    
Total liabilities 4,636 3,841    
Home equity | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 119 152    
On-balance sheet assets        
Total retained positions 1 1    
Total assets 326 430    
Home equity | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 32 45    
On-balance sheet assets        
Trading account assets 0 0    
Total assets 111 157    
Loans and leases 97 140    
Allowance for loan and lease losses 12 14    
Other assets 2 3    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 79 113    
All other liabilities 0 0    
Total liabilities 79 113    
Home equity | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 0 0    
Debt securities carried at fair value 1 1    
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 9,555 10,279    
On-balance sheet assets        
Trading account assets 0 0    
Total assets 13,815 13,534    
Loans and leases 14,555 14,434    
Allowance for loan and lease losses (808) (970)    
Other assets 68 70    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 4,247 3,248    
All other liabilities 13 7    
Total liabilities 4,260 3,255    
Residual interests 3,300 4,300    
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 4,243 6,089    
On-balance sheet assets        
Total retained positions 4,243 6,089    
Total assets 12,255 18,633    
Resecuritization Trusts | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 551 680    
On-balance sheet assets        
Trading account assets 650 686    
Total assets 650 686    
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 99 6    
All other liabilities 0 0    
Total liabilities 99 6    
Resecuritization Trusts | Senior securities: | Unconsolidated VIEs        
On-balance sheet assets        
Trading account assets 456 1,030    
Debt securities carried at fair value 1,259 1,903    
Held-to-maturity securities 2,528 3,156    
Municipal Bond Trusts | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 2,537 4,094    
On-balance sheet assets        
Total retained positions 0 0    
Total assets 3,016 4,655    
Municipal Bond Trusts | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 0 210    
On-balance sheet assets        
Trading account assets 0 122    
Total assets 0 210    
Loans and leases 0 0    
Allowance for loan and lease losses 0 0    
Other assets 0 88    
On-balance sheet liabilities        
Short-term borrowings 0 196    
Long-term debt 0 0    
All other liabilities 0 0    
Total liabilities 0 196    
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