Annual report pursuant to Section 13 and 15(d)

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

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Outstanding Loans and Leases and Allowance for Credit Losses - Credit Card and Other Consumer - TDRs Modified by Program Type (Details) - Credit card and other consumer - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Carrying Value $ 264 $ 314 $ 376
Internal programs      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Carrying Value 214 225 247
External programs      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Carrying Value 44 73 108
Other      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Carrying Value $ 6 $ 16 $ 21