Shareholders' Equity (Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Shareholders' Equity [Abstract]
Unrealized gain (loss) on marketable securities, current period change	$ 0	$ (2)	$ 0	$ 1
Foreign currency translation, current period change	29	(28)	87	(59)
Unrealized gain (loss) on interest rate swaps, current period change	1	9	15	7
Pension and postretirement benefits, current period change	7	2	13	7
Accumulated other comprehensive income (loss), net, current period change	37	(19)	115	(44)
Unrealized gain (loss) on marketable securities, income tax (provision) benefit	0	0	0	0
Foreign currency translation, income tax (provision) benefit	0	0	0	0
Unrealized gain (loss) on interest rate swaps, income tax (provision) benefit	(1)	(3)	(6)	(4)
Pension and postretirement benefits, income tax (provision) benefit	(2)	0	(5)	(1)
Accumulated other comprehensive income (loss), income tax (provision) benefit	(3)	(3)	(11)	(5)
Unrealized gain (loss) on marketable securities	(1)		(1)		(1)
Foreign currency translation	86		86		(1)
Unrealized gain (loss) on interest rate swaps	(75)		(75)		(84)
Pension and postretirement benefits	(576)		(576)		(584)
Accumulated other comprehensive income (loss), net	$ (566)		$ (566)		$ (670)