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Condensed Consolidated Statements Of Operations (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Income from operations of discontinued businesses, income tax expense (benefit) $ 2 $ (3)
Gain/(loss) from disposal of discontinued businesses, income tax expense (benefit) $ 0 $ 0