Consolidated Statement of Stockholders' Equity (USD $) In Millions, except Share data in Thousands, unless otherwise specified	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Parent [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance, shares at Dec. 31, 2009		478,597		61,649
Treasury Stock, Value				$ (4,726)
Common Stock, Value, Issued		598
Net income in stockholders' equity	1,943				1,843			44
Net Income (Loss) Attributable to Parent	1,843
Other Comprehensive Income:
Unrealized Translation	(334)				326		326	7
Employee postretirement benefits, net of tax	(55)				(57)		57	2
Other	(16)				(16)		(16)	0
Stock Issued During Period, Value, Stock Options Exercised			(37)
Stock-based awards exercised or vested				170	133			0
Stock-based awards exercised or vested, shares				(2,862)
Income tax benefits on stock-based compensation			2		2			0
Shares repurchased				(809)	(809)			0
Shares repurchased, shares				12,954
Recognition of stock-based compensation			52		52			0
Dividend declared					(1,085)	(1,085)		(47)
Other			9	0	(8)	(1)	0	(1)
Additional Paid in Capital			425
Retained Earnings (Accumulated Deficit)						11,086
Accumulated Other Comprehensive Income (Loss), Net of Tax							(1,466)
Stockholders' Equity Attributable to Noncontrolling Interest								(285)
Ending Balance at Dec. 31, 2010					5,917			285
Balance, shares at Dec. 31, 2010		478,597		71,741
Beginning balance at Dec. 31, 2010								285
Treasury Stock, Value	(2,105)			(2,105)
Common Stock, Value, Issued	536	536
Net income in stockholders' equity	1,684				1,591			39
Net Income (Loss) Attributable to Parent	1,591					1,591
Other Comprehensive Income:
Unrealized Translation	249				(236)		(236)	(13)
Employee postretirement benefits, net of tax	134				133		(133)	1
Other	(30)				(31)		31	1
Stock Issued During Period, Value, Stock Options Exercised			(47)	490
Stock-based awards exercised or vested					443			0
Stock-based awards exercised or vested, shares				(7,924)
Income tax benefits on stock-based compensation			10		10			0
Shares repurchased				(1,247)	(1,247)			0
Treasury Stock, Shares, Retired	(50,000)	(50,000)
Stock Repurchased and Retired During Period, Value	3,378	62				(3,316)
Shares repurchased, shares				19,120
Recognition of stock-based compensation			48		48			0
Dividend declared					(1,107)	(1,107)		(29)
Return on redeemable preferred securities and noncontrolling interests and other								(2)
Other			4		6	(10)		0
Additional Paid in Capital	440		440
Retained Earnings (Accumulated Deficit)	8,244					8,244
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,866)						(1,866)
Stockholders' Equity Attributable to Noncontrolling Interest	(280)							(280)
Ending Balance at Dec. 31, 2011	5,529				5,249			280
Balance, shares at Dec. 31, 2011		428,597		32,937
Beginning balance at Dec. 31, 2011	280							280
Treasury Stock, Value	(2,796)			(2,796)
Common Stock, Value, Issued	536	536
Net income in stockholders' equity	1,828				1,750			47
Net Income (Loss) Attributable to Parent	1,750					1,750
Other Comprehensive Income:
Unrealized Translation	(215)				195		195	20
Employee postretirement benefits, net of tax	377				372		(372)	5
Other	(16)				(16)		16	0
Stock Issued During Period, Value, Stock Options Exercised			(78)	643
Stock-based awards exercised or vested					565			0
Stock-based awards exercised or vested, shares	(9,189)			(10,492)
Income tax benefits on stock-based compensation			43		43			0
Shares repurchased				(1,333)	(1,333)			0
Shares repurchased, shares				16,877
Recognition of stock-based compensation			67		67			0
Dividend declared					(1,163)	(1,163)		(38)
Return on redeemable preferred securities and noncontrolling interests and other			9	(1)				(2)
Other					0	(8)		0
Additional Paid in Capital	481		481
Retained Earnings (Accumulated Deficit)	8,823					8,823
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,059)						(2,059)
Stockholders' Equity Attributable to Noncontrolling Interest	(302)							(302)
Ending Balance at Dec. 31, 2012	$ 5,287				$ 4,985			$ 302
Balance, shares at Dec. 31, 2012		428,597		39,322