Consolidated Statements Of Shareholders' Equity (USD $) In Millions, except Share data	Total	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock
Beginning Balance at Dec. 31, 2011	$ 5,033	$ 393	$ 1,096	$ 3,863	$ 901	$ (1,220)
Beginning Balance (in shares) at Dec. 31, 2011		162,200,000
Net Income	421			421
Other comprehensive income, net	228				228
Dividends declared	(263)			(263)
Share-based awards exercised and vested (in shares)		700,000
Share-based awards exercised and vested	22	1	19			2
Share-based compensation	16		16
Treasury shares acquired—share repurchase authorization (in shares)		0
Treasury shares acquired—share repurchase authorization	0					0
Shares acquired under employee share-based compensation plans (in shares)		(300,000)
Shares acquired under employee share-based compensation plans	(12)					(12)
Other (in shares)		300,000
Other	8		3			5
Ending Balance at Dec. 31, 2012	5,453	394	1,134	4,021	1,129	(1,225)
Ending Balance (in shares) at Dec. 31, 2012		162,900,000
Net Income	517			517
Other comprehensive income, net	375				375
Dividends declared	(270)			(270)
Share-based awards exercised and vested (in shares)		1,600,000
Share-based awards exercised and vested	49	3	36			10
Share-based compensation	18		18
Treasury shares acquired—share repurchase authorization (in shares)		(1,000,000)
Treasury shares acquired—share repurchase authorization	(52)					(52)
Shares acquired under employee share-based compensation plans (in shares)		(600,000)
Shares acquired under employee share-based compensation plans	(28)					(28)
Other (in shares)		200,000
Other	8		3			5
Ending Balance at Dec. 31, 2013	6,070	397	1,191	4,268	1,504	(1,290)
Ending Balance (in shares) at Dec. 31, 2013	198,300,000	163,100,000
Net Income	525			525
Other comprehensive income, net	240				240
Dividends declared	(288)			(288)
Share-based awards exercised and vested (in shares)	1,086,000	1,300,000
Share-based awards exercised and vested	37	0	0			37
Share-based compensation	19		19
Treasury shares acquired—share repurchase authorization (in shares)		(500,000)
Treasury shares acquired—share repurchase authorization	(21)					(21)
Shares acquired under employee share-based compensation plans (in shares)		(400,000)
Shares acquired under employee share-based compensation plans	(19)					(19)
Other (in shares)		200,000
Other	10		4			6
Ending Balance at Dec. 31, 2014	$ 6,573	$ 397	$ 1,214	$ 4,505	$ 1,744	$ (1,287)
Ending Balance (in shares) at Dec. 31, 2014	198,300,000	163,700,000