v2.4.0.6
Securitizations and Variable Interest Entities, Cash Flow Securitizations (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mortgage loans [Member]
   
Cash Flow Securitizations [Abstract]    
Sales proceeds from securitizations $ 106,306 $ 143,105
Servicing fees 1,076 1,111
Other interests held 406 426
Purchases of delinquent assets 9 0
Net servicing advances 802 14
Other financial assets [Member]
   
Cash Flow Securitizations [Abstract]    
Sales proceeds from securitizations 0 0
Servicing fees 2 3
Other interests held 27 49
Purchases of delinquent assets 0 0
Net servicing advances $ 0 $ 0