Condensed Consolidated Statements Of Stockholders' Equity (Unaudited) (USD $) In Millions, unless otherwise specified	Total	Common Stock and Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]	Retained Earnings [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2012	$ 3,290	$ 4,940	$ (3,300)	$ 1,625	$ 25
Balance (in shares) at Dec. 31, 2012		277.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	192			192	0
Foreign currency translation adjustments, net of tax of $(1)	(37)		(37)
Amortization of retirement benefit adjustments, net of tax of $9	(19)		19
Issuance of common stock and stock options exercised		33
Issuance of common stock and stock options exercised (in shares)		1.5
Share repurchase program		(357)
Share repurchase program (in shares)		(5.9)
Excess tax benefit from share-based compensation		9
Share-based compensation expense		45
Net gain on derivative hedging instruments, net of tax of $0	(1)		(1)
Dividends declared				(71)
Balance at Mar. 30, 2013	$ 3,122	$ 4,670	$ (3,319)	$ 1,746	$ 25
Balance (in shares) at Mar. 30, 2013		272.9