v2.4.0.8
Loans and Allowance for Credit Losses, PCI, Allowance for Credit Losses (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 48 Months Ended
Jun. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Changes in allowance for PCI loan losses [Abstract]      
Balance, beginning of period $ 80 $ 117 $ 0
Provision for losses due to credit deterioration (1) (33) 1,816
Charge-offs (8) (13) (1,699)
Balance, end of period 71 71 117
Commercial Portfolio Segment [Member]
     
Changes in allowance for PCI loan losses [Abstract]      
Balance, beginning of period 53 88 0
Provision for losses due to credit deterioration (2) (34) 1,693
Charge-offs (2) (5) (1,605)
Balance, end of period 49 49 88
Pick-a-pay [Member]
     
Changes in allowance for PCI loan losses [Abstract]      
Balance, beginning of period 0 0 0
Provision for losses due to credit deterioration 0 0 0
Charge-offs 0 0 0
Balance, end of period 0 0 0
Other Consumer [Member]
     
Changes in allowance for PCI loan losses [Abstract]      
Balance, beginning of period 27 29 0
Provision for losses due to credit deterioration 1 1 123
Charge-offs (6) (8) (94)
Balance, end of period $ 22 $ 22 $ 29