v2.4.0.6
Securitizations and Variable Interest Entities, Principal Balances of Off-Balance Sheet Securitized Loans (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Dec. 31, 2011
Off-balance sheet securitized loans [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans $ 1,374,430   $ 1,311,060
Delinquent loans 35,479   35,508
Net charge-offs (recoveries) 340 479  
Commercial Real Estate Mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 134,339   137,121
Delinquent loans 11,358   11,142
Net charge-offs (recoveries) 54 73  
Total Commercial [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 134,339   137,121
Delinquent loans 11,358   11,142
Net charge-offs (recoveries) 54 73  
Real estate 1-4 family first mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 1,237,871   1,171,666
Delinquent loans 24,002   24,235
Net charge-offs (recoveries) 286 406  
Real estate 1-4 family junior lien mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 2   2
Delinquent loans 0   0
Net charge-offs (recoveries) 0 0  
Other revolving credit and installment [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 2,218   2,271
Delinquent loans 119   131
Net charge-offs (recoveries) 0 0  
Total Consumer [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 1,240,091   1,173,939
Delinquent loans 24,121   24,366
Net charge-offs (recoveries) $ 286 $ 406