Other Income, Net (Schedule Of Other Income, Net) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Other Income, Net [Abstract]
Equity loss (income)	$ 2	$ (4)
Interest income	(6)	(6)
Foreign currency gains, net	(11)	(21)
Net loss from asset sales	2	1
Net loss (gain) on mark-to-market derivative contracts (L)	6	(9)
Other, net	(9)	11
Other income, net	$ (16)	$ (28)