Supplemental Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance	$ 820	$ 916
Net Income	30	14
Currency translation adjustments	(1)	11
Unrealized loss on securities	1	(1)
Unrealized loss on derivatives	(5)	(7)
Benefit plans, net	20	37
Temporary Equity, Comprehensive Income (Loss)	0
Comprehensive income	45	54
Employee stock purchase and stock compensation plans	13	15
Repurchase of Company common stock		(35)
Stockholders' equity, ending balance	878	950
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gain on securities	2		1
Unrealized loss on derivatives	(5)		0
Unamortized costs associated with pension, postemployment and postretirement benefits	(1,391)		(1,411)
Currency translation adjustents	(81)		(82)
Accumulated other comprehensive loss	(1,475)		(1,492)
Redeemable Noncontrolling Interests in Subsidiaries [Roll Forward]
Redeemable Noncontrolling Interests, beginning balance	15
Net Income	0
Redeemable Noncontrolling Interests, ending balance	15
Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance	785	883
Net Income	29	13
Currency translation adjustments	1	10
Unrealized loss on securities	1	(1)
Unrealized loss on derivatives	(5)	(7)
Benefit plans, net	20	37
Comprehensive income	46	52
Employee stock purchase and stock compensation plans	13	15
Repurchase of Company common stock		(35)
Stockholders' equity, ending balance	844	915
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance	35	33
Net Income	1	1
Currency translation adjustments	(2)	1
Unrealized loss on securities	0	0
Unrealized loss on derivatives	0	0
Benefit plans, net	0	0
Comprehensive income	(1)	2
Employee stock purchase and stock compensation plans	0	0
Repurchase of Company common stock		0
Stockholders' equity, ending balance	$ 34	$ 35