v2.4.0.6
Loans and Allowance for Credit Losses, PCI, Allowance for Credit Losses (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 36 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Changes in allowance for PCI loan losses [Abstract]    
Beginning Balance $ 231 $ 0
Provision for losses due to credit deterioration 44 1,784
Charge-offs (30) (1,553)
Ending Balance 245 231
Commercial Portfolio Segment [Member]
   
Changes in allowance for PCI loan losses [Abstract]    
Beginning Balance 165 0
Provision for losses due to credit deterioration 39 1,668
Charge-offs (27) (1,503)
Ending Balance 177 165
Pick-a-pay [Member]
   
Changes in allowance for PCI loan losses [Abstract]    
Beginning Balance 0 0
Provision for losses due to credit deterioration 0 0
Charge-offs 0 0
Ending Balance 0 0
Other Consumer [Member]
   
Changes in allowance for PCI loan losses [Abstract]    
Beginning Balance 66 0
Provision for losses due to credit deterioration 5 116
Charge-offs (3) (50)
Ending Balance $ 68 $ 66