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Other (Income) Expenses, Net (Schedule Of Other (Income) Expenses, Net) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Other (Income) Expenses, Net [Abstract]      
Equity (income) loss $ (15) $ (14) $ 14
Interest income (20) (19) (18)
Foreign currency losses (gains), net 16 13 (82)
Net gain from asset sales (41) (9) (106)
Net (gain) loss on mark-to-market derivative contracts (X) (52) 37 62
Other, net 25 (3) (31)
Other (income) expenses, net $ (87) $ 5 $ (161)