Supplemental Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance			$ 820	$ 916
Net Income	80	35	110	49
Other comprehensive income, net of tax [Abstract]
Currency translation adjustments			(13)	9
Unrealized loss on securities				(1)
Unrealized loss on derivatives			(4)	(8)
Benefit plans, net			41	73
Comprehensive income			134	122
Dividend declared to minority shareholder			(1)
Employee stock purchase and stock compensation plans			29	28
Repurchase of Company common stock				(70)
Stockholders' equity, ending balance	982	996	982	996
Redeemable Noncontrolling Interests in Subsidiaries [Roll Forward]
Redeemable Noncontrolling Interests, beginning balance			15
Net Income			0
Currency translation adjustments			(1)
Comprehensive income			(1)
Redeemable Noncontrolling Interests, ending balance	14		14
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gain on securities	1		1		1
Unrealized loss on derivatives	(4)		(4)		0
Unamortized costs associated with pension, postemployment and postretirement benefits	(1,370)		(1,370)		(1,411)
Currency translation adjustents	(95)		(95)		(82)
Accumulated other comprehensive loss	(1,468)		(1,468)		(1,492)
Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance			785	883
Net Income			109	46
Other comprehensive income, net of tax [Abstract]
Currency translation adjustments			(13)	8
Unrealized loss on securities				(1)
Unrealized loss on derivatives			(4)	(8)
Benefit plans, net			41	73
Comprehensive income			133	118
Dividend declared to minority shareholder			0
Employee stock purchase and stock compensation plans			29	28
Repurchase of Company common stock				(70)
Stockholders' equity, ending balance	947	959	947	959
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' equity, beginning balance			35	33
Net Income			1	3
Other comprehensive income, net of tax [Abstract]
Currency translation adjustments			0	1
Unrealized loss on securities				0
Unrealized loss on derivatives			0	0
Benefit plans, net			0	0
Comprehensive income			1	4
Dividend declared to minority shareholder			(1)
Employee stock purchase and stock compensation plans			0	0
Repurchase of Company common stock				0
Stockholders' equity, ending balance	$ 35	$ 37	$ 35	$ 37