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
Mar. 31, 2019
Mar. 31, 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   $ 72
With an allowance recorded 0   0
Total 74   72
Carrying Value      
With no recorded allowance 34   33
With an allowance recorded 0   0
Total 34   33
Related Allowance 0   0
Average Carrying Value      
With no recorded allowance 34 $ 27  
With an allowance recorded 0 1  
Total 34    
Total, including loans held for sale   28  
United States | Credit Card Receivable      
Unpaid Principal Balance      
With an allowance recorded 554   522
Total 554   522
Carrying Value      
With an allowance recorded 566   533
Total 566   533
Related Allowance 155   $ 154
Average Carrying Value      
With an allowance recorded 547 465  
Total $ 547    
Total, including loans held for sale   $ 465