Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Credit Card and Other Consumer - Renegotiated TDRs Entered into During the Period by Program Type (Details)

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Outstanding Loans and Leases - Credit Card and Other Consumer - Renegotiated TDRs Entered into During the Period by Program Type (Details) - Credit card and other consumer - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Financing Receivable, Modifications [Line Items]        
Carrying Value $ 113 $ 153 $ 219 $ 303
Internal Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value 45 64 91 132
External Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value 24 32 48 63
Other        
Financing Receivable, Modifications [Line Items]        
Carrying Value 44 57 80 108
Credit Card Receivable | United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 66 87 $ 133 176
Percent expected to be in payment default within 12 months after modification     14.00%  
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 10 12 $ 22 25
Credit Card Receivable | Non United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 42 55 $ 79 107
Percent expected to be in payment default within 12 months after modification     85.00%  
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 39 54 $ 80 110
Credit Card Receivable | Internal Programs | United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 43 58 88 119
Credit Card Receivable | Internal Programs | Non United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 1 1 2 4
Credit Card Receivable | External Programs | United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 23 29 45 57
Credit Card Receivable | External Programs | Non United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 1 2 3 4
Credit Card Receivable | Other | United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 0 0 0 0
Credit Card Receivable | Other | Non United States        
Financing Receivable, Modifications [Line Items]        
Carrying Value 40 52 74 99
Direct/Indirect Consumer        
Financing Receivable, Modifications [Line Items]        
Carrying Value 5 8 $ 7 15
Percent expected to be in payment default within 12 months after modification     12.00%  
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 1 1 $ 2 3
Direct/Indirect Consumer | Internal Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value 1 2 1 4
Direct/Indirect Consumer | External Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value 0 1 0 2
Direct/Indirect Consumer | Other        
Financing Receivable, Modifications [Line Items]        
Carrying Value $ 4 5 $ 6 9
Other consumer        
Financing Receivable, Modifications [Line Items]        
Carrying Value   3   5
Other consumer | Internal Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value   3   5
Other consumer | External Programs        
Financing Receivable, Modifications [Line Items]        
Carrying Value   0   0
Other consumer | Other        
Financing Receivable, Modifications [Line Items]        
Carrying Value   $ 0   $ 0