XML 65 R128.htm IDEA: XBRL DOCUMENT v2.4.0.6
Variable Interest Entities - Loans Sold to Third-Party Sponsored Securitization Entities (Details 5) (Variable Interest Entity, Not Primary Beneficiary [Member], USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Variable Interest Entity, Not Primary Beneficiary [Member]
         
Summary of loan sale activities [Abstract]          
Carrying value of loans sold $ 44,131,000,000 $ 32,609,000,000 $ 84,090,000,000 $ 71,856,000,000  
Proceeds received from loan sales as cash 1,412,000,000 565,000,000 1,960,000,000 905,000,000  
Proceeds received from loan sales as securities 42,251,000,000 31,511,000,000 81,125,000,000 69,683,000,000  
Total proceeds received from loan sales 43,663,000,000 32,076,000,000 83,085,000,000 70,588,000,000  
Gains on loan sales 56,000,000 30,000,000 91,000,000 52,000,000  
Loans Repurchased Or Loans With The Option To Repurchase 15,900,000,000   15,900,000,000   15,700,000,000
Real Estate Acquired Through Foreclosure $ 1,300,000,000   $ 1,300,000,000   $ 1,000,000,000