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, 2016
Mar. 31, 2015
Dec. 31, 2015
Financing Receivable, Impaired [Line Items]      
Fixed payment plan period for loans modified 60 months    
Threshold period past due for write-off of financing receivable 180 days    
Threshold period past due for write-off of financing receivable after placed on fixed payment plan 120 days    
Direct/Indirect Consumer      
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]      
With no recorded allowance $ 49   $ 50
With an allowance recorded 11   17
Total 60   67
Impaired Financing Receivable, Recorded Investment [Abstract]      
With no recorded allowance 21   21
With an allowance recorded 13   21
Total 34   42
Related Allowance 2   4
Impaired Financing Receivable, Average Recorded Investment [Abstract]      
With no recorded allowance 21 $ 25  
With an allowance recorded 18 82  
Total 39 107  
Impaired Financing Receivable, Interest Income, Accrual and Cash Basis Method [Abstract]      
With no recorded allowance 0 0  
With an allowance recorded 0 1  
Total 0 1  
United States | Credit Card Receivable      
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]      
With an allowance recorded 559   598
Total 559   598
Impaired Financing Receivable, Recorded Investment [Abstract]      
With an allowance recorded 569   611
Total 569   611
Related Allowance 136   176
Impaired Financing Receivable, Average Recorded Investment [Abstract]      
With an allowance recorded 606 847  
Total 606 847  
Impaired Financing Receivable, Interest Income, Accrual and Cash Basis Method [Abstract]      
With an allowance recorded 9 13  
Total 9 13  
Non United States | Credit Card Receivable      
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]      
With an allowance recorded 101   109
Total 101   109
Impaired Financing Receivable, Recorded Investment [Abstract]      
With an allowance recorded 119   126
Total 119   126
Related Allowance 70   $ 70
Impaired Financing Receivable, Average Recorded Investment [Abstract]      
With an allowance recorded 122 159  
Total 122 159  
Impaired Financing Receivable, Interest Income, Accrual and Cash Basis Method [Abstract]      
With an allowance recorded 1 1  
Total $ 1 $ 1