Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Commercial Loans, Loans Held-for-sale and Accrued Interest Receivable (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Commercial Loans, Loans Held-for-sale and Accrued Interest Receivable (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans held for sale $ 7,591   $ 7,591   $ 6,871
Originations and purchases     11,545 $ 18,736  
Net non-cash transfers into LHFS     634 2,100  
Accrued interest receivable $ 4,300   $ 4,300   $ 3,800
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other Receivables   Other Receivables   Other Receivables
Credit card lines          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Interest and fee income reversed $ 152 $ 81 $ 409 241  
Commercial          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Carrying Value   $ 745   1,700  
Lending commitments         $ 358
Commitments in payment default         105
Loans held for sale $ 7,600   7,600   $ 6,900
Proceeds from sales and paydowns of loans originally classified as LHFS     10,800 27,800  
Originations and purchases     $ 11,500 $ 18,700