Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs by Program Type (Details)

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Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs by Program Type (Details) - Credit card and other consumer - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 694 $ 679
Financing receivable, trouble debt restructuring, percent of balance current or less than 30 days past due 85.00% 84.00%
Internal Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 353 $ 339
External Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring 309 308
Other    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring 32 32
Credit Card    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 663 $ 647
Financing receivable, trouble debt restructuring, percent of balance current or less than 30 days past due 86.00% 85.00%
Credit Card | Internal Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 353 $ 339
Credit Card | External Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring 309 308
Credit Card | Other    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring 1 0
Direct/indirect consumer    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 31 $ 32
Financing receivable, trouble debt restructuring, percent of balance current or less than 30 days past due 77.00% 78.00%
Direct/indirect consumer | Internal Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 0 $ 0
Direct/indirect consumer | External Programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring 0 0
Direct/indirect consumer | Other    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Financing receivable, trouble debt restructuring $ 31 $ 32