Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Outstanding Loans and Leases - Credit Card and Other Consumer - TDRs Entered into During the Period (Details) - Credit card and other consumer - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Financing Receivable, Modifications [Line Items]    
Unpaid Principal Balance $ 96 $ 85
Carrying Value $ 101 $ 92
Pre-Modification Interest Rate 19.51% 19.59%
Post-Modification Interest Rate 3.28% 3.34%
Net Charge-offs $ 6 $ 4
Direct/Indirect Consumer    
Financing Receivable, Modifications [Line Items]    
Unpaid Principal Balance 10 7
Carrying Value $ 6 $ 4
Pre-Modification Interest Rate 4.08% 4.27%
Post-Modification Interest Rate 4.04% 4.08%
Net Charge-offs $ 4 $ 2
United States | Credit Card Receivable    
Financing Receivable, Modifications [Line Items]    
Unpaid Principal Balance 52 46
Carrying Value $ 55 $ 50
Pre-Modification Interest Rate 18.01% 17.44%
Post-Modification Interest Rate 5.30% 5.51%
Net Charge-offs $ 1 $ 1
Non United States | Credit Card Receivable    
Financing Receivable, Modifications [Line Items]    
Unpaid Principal Balance 34 32
Carrying Value $ 40 $ 38
Pre-Modification Interest Rate 23.89% 24.23%
Post-Modification Interest Rate 0.34% 0.36%
Net Charge-offs $ 1 $ 1