Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Commercial Loans - Impaired Loans (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Commercial Loans - Impaired Loans (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Financing Receivable, Impaired [Line Items]          
Loans held-for-sale $ 9,415   $ 9,415   $ 9,243
Proceeds from sales and paydowns of loans originally classified as LHFS     27,000 $ 16,100  
Originations and purchases     27,003 11,093  
Accrued interest receivable 2,200   2,200   2,400
Credit card lines          
Financing Receivable, Impaired [Line Items]          
Interest and fee income reversed 87   369    
Commercial          
Financing Receivable, Impaired [Line Items]          
Carrying Value 213 $ 588 1,100 $ 1,500  
Lending commitments 272   272   402
Commitments in payment default $ 168   $ 168   $ 218