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Discontinued Operations and Held For Sale Businesses (Tables)
3 Months Ended
Jun. 30, 2011
Discontinued Operations And Held For Sale Business Tables Abstract  
Revenue Income From Operations Of Discontinued Businesses Income Tax Expense And Impairment Of Discontinued Operations
   Three Months Six Months
   Ended June 30, Ended June 30,
   2011 2010 2011 2010
              
   (in millions)
Revenue $ 59 $ 296 $ 148 $ 674
Income (loss) from operations of discontinued businesses $ (24) $ 3 $ (42) $ 48
Income tax benefit (expense)   7   6   13   (5)
Income (loss) from operations of discontinued            
 businesses, net of tax $ (17) $ 9 $ (29) $ 43
Loss on sale of discontinued operations $ - $ (9) $ - $ (22)