Quarterly report pursuant to Section 13 or 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
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Financing Receivable, Impaired [Line Items]          
Fixed payment plan period for loans modified     60 months    
Direct/Indirect Consumer          
Unpaid Principal Balance          
With no recorded allowance $ 74   $ 74   $ 72
Total 74   74   72
Carrying Value          
With no recorded allowance 33   33   33
Total 33   33   33
Related Allowance 0   0   0
Average Carrying Value          
With no recorded allowance 33 $ 30 33 $ 29  
United States | Credit Card Receivable          
Unpaid Principal Balance          
With an allowance recorded 610   610   522
Total 610   610   522
Carrying Value          
With an allowance recorded 624   624   533
Total 624   624   533
Related Allowance 179   179   $ 154
Average Carrying Value          
With an allowance recorded $ 609 $ 498 $ 579 $ 481