v2.4.0.6
Variable Interest Entities and Securitization Activities (Consolidated VIEs) (Details) (Consolidated VIEs, USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Mortgage and Asset-Backed Securities
   
VIE assets $ 1,594 $ 2,414
VIE liabilities 967 1,699
Collateralized Debt Obligations
   
VIE assets 237 102
VIE liabilities 87 69
Managed Real Estate Partnerships
   
VIE assets 2,255 2,207
VIE liabilities 81 102
Other Structured Financings
   
VIE assets 833 918
VIE liabilities 2,571 2,576
Other
   
VIE assets 2,366 1,937
VIE liabilities $ 304 $ 556