Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases - Credit Card and Other Consumer - Impaired Loans (Details)

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Outstanding Loans and Leases - Credit Card and Other Consumer - Impaired Loans (Details) - Credit card and other consumer - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Impaired [Line Items]      
Fixed payment plan period for loans modified 60 months    
Direct/Indirect Consumer      
Unpaid Principal Balance      
With no recorded allowance $ 73 $ 72  
Carrying Value      
With no recorded allowance 32 33  
Average Carrying Value      
With no recorded allowance 33 30 $ 21
United States | Credit Card Receivable      
Unpaid Principal Balance      
With an allowance recorded 633 522  
Carrying Value      
With an allowance recorded 647 533  
Related Allowance 188 154  
Average Carrying Value      
With an allowance recorded $ 594 $ 491 511
Non United States | Credit Card Receivable      
Average Carrying Value      
Total     $ 47