v2.4.0.8
Securitizations and Variable Interest Entities, Principal Balances of Off-Balance Sheet Securitized Loans (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans $ 1,414,424   $ 1,414,103
Delinquent loans 29,646   33,900
Net charge-offs (recoveries) 858 778  
Total Commercial [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 116,226   128,564
Delinquent loans 9,691   12,216
Net charge-offs (recoveries) 387 207  
Real estate mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 116,226   128,564
Delinquent loans 9,691   12,216
Net charge-offs (recoveries) 387 207  
Total Consumer [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 1,298,198   1,285,539
Delinquent loans 19,955   21,684
Net charge-offs (recoveries) 471 571  
Real estate 1-4 family first mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 1,296,318   1,283,504
Delinquent loans 19,866   21,574
Net charge-offs (recoveries) 471 571  
Real estate 1-4 family junior lien mortgage [Member]
     
Principal Balances - Off-Balance Sheet Securitized Loans [Abstract]      
Total Loans 1   1
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 1,879   2,034
Delinquent loans 89   110
Net charge-offs (recoveries) $ 0 $ 0