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SHARE-BASED COMPENSATION AND OTHER PLANS (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
SHARE-BASED COMPENSATION AND OTHER PLANS      
Share-based compensation expense - pre-tax $ (16) $ 333 $ 209
Share-based compensation expense - after tax (10) 216 151
Share-based compensation expense related to discontinued operations, pre-tax   12 21
Share-based compensation expense related to discontinued operations, after tax   9 13
Share price (in dollars per share) $ 23.20 $ 57.62  
Decrease in share-based compensation expense $ 349