v2.4.0.6
Securities Available for Sale, Realized Gains and Losses (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]    
Gross realized gains $ 281 $ 70
Gross realized losses (4) (42)
OTTI Write-downs (51) (80)
Net realized gains on securities available for sale 226 (52)
Net gains (losses) from private equity investments 131 239
Net realized gains from debt securities and equity investments $ 357 $ 187