v2.4.0.6
Long-Term Borrowings and Other Secured Financings (Narratives) (Details) (USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2012
Y
Dec. 31, 2011
Y
Notes issued, principal amount $ 9,000,000,000  
Notes matured or retired 26,000,000,000  
Weighted average maturity of long-term borrowings (in years) 5.3 5.0
Junior subordinated debentures 4,851,000,000 4,853,000,000
Long-term debt outstanding 167,828,000,000 184,234,000,000
TLGP
   
Long-term debt outstanding   $ 12,100,000,000