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 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Financing Receivable, Impaired [Line Items]        
Loans held-for-sale $ 7,381 $ 7,381   $ 9,158
Proceeds from sales and paydowns of loans originally classified as LHFS   11,100 $ 14,400  
Originations and purchases   9,151 $ 9,190  
Accrued interest receivable 2,400 2,400   2,600
Credit card lines        
Financing Receivable, Impaired [Line Items]        
Interest and fee income 141 306    
Residential mortgage, home equity, direct and indirect consumer and commercial financing receivable | Nonperforming Loans        
Financing Receivable, Impaired [Line Items]        
Interest and fee income 8 18    
Commercial portfolio        
Financing Receivable, Impaired [Line Items]        
Lending commitments $ 500 $ 500   $ 445