Consolidated Statements Of Stockholders' Equity (USD $) In Millions, except Share data, unless otherwise specified	Total	Common Stock and Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interests
Balance at Dec. 31, 2011		$ 7,074	$ (2,876)	$ 1,016	$ 60
Balance (in shares) at Dec. 31, 2011		320,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	881			881	0
Net unrealized gain (loss) on securities, net of tax of $26, $1, and $1	1		1
Foreign currency translation adjustment, net of tax of $(9), $(7), and $(4)	14		14
Amortization of retirement benefit adjustments, net of tax of $17, $40, and $99	177		177
Pension settlement adjustment, net of tax of $715	0
Mid-year remeasurement of retirement benefit adjustments and other amendment, net of tax of $(294), $-, and $52	87		87
Year-end and other retirement adjustments, net of tax of $(153), $571, $(419)	(707)		(707)
Issuance of common stock and stock options exercised (in shares)	2,831,000	6,900,000
Issuance of common stock and stock options exercised		80
Share repurchase program (in shares)		(49,600,000)
Share repurchase program		(2,438)
Excess tax benefit from share-based compensation		20
Share-based compensation expense		184
Net gain (loss) on derivative hedging instruments, net of tax of $-, $1, and $(1)	4		4
Acquisition of noncontrolling interest from Japanese subsidiary		20			(35)
Dividends declared				(272)
Disposition of the Enterprise business, net of tax of ($16)	0
Balance at Dec. 31, 2012		4,940	(3,300)	1,625	25
Balance (in shares) at Dec. 31, 2012		277,300,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,105			1,099	6
Net unrealized gain (loss) on securities, net of tax of $26, $1, and $1	(4)		(4)
Foreign currency translation adjustment, net of tax of $(9), $(7), and $(4)	(4)		(4)
Amortization of retirement benefit adjustments, net of tax of $17, $40, and $99	70		70
Pension settlement adjustment, net of tax of $715	0
Mid-year remeasurement of retirement benefit adjustments and other amendment, net of tax of $(294), $-, and $52	0
Year-end and other retirement adjustments, net of tax of $(153), $571, $(419)	953		953
Issuance of common stock and stock options exercised (in shares)	2,950,000	6,800,000
Issuance of common stock and stock options exercised		100
Share repurchase program (in shares)		(28,600,000)
Share repurchase program		(1,694)
Excess tax benefit from share-based compensation		25
Share-based compensation expense		153
Net gain (loss) on derivative hedging instruments, net of tax of $-, $1, and $(1)	(2)		(2)
Purchase of noncontrolling interest in subsidiary		(3)			(1)
Dividends declared				(299)
Disposition of the Enterprise business, net of tax of ($16)	0
Balance at Dec. 31, 2013	3,689	3,521	(2,287)	2,425	30
Balance (in shares) at Dec. 31, 2013		255,500,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,300			1,299	1
Net unrealized gain (loss) on securities, net of tax of $26, $1, and $1	46		46
Foreign currency translation adjustment, net of tax of $(9), $(7), and $(4)	(49)		(49)
Amortization of retirement benefit adjustments, net of tax of $17, $40, and $99	44		44
Pension settlement adjustment, net of tax of $715	1,168
Mid-year remeasurement of retirement benefit adjustments and other amendment, net of tax of $(294), $-, and $52	(353)		(353)
Year-end and other retirement adjustments, net of tax of $(153), $571, $(419)	(365)		(365)
Issuance of common stock and stock options exercised (in shares)	1,526,000	4,400,000
Issuance of common stock and stock options exercised		86
Share repurchase program (in shares)		(39,400,000)
Share repurchase program		(2,546)
Excess tax benefit from share-based compensation		5
Share-based compensation expense		114
Net gain (loss) on derivative hedging instruments, net of tax of $-, $1, and $(1)	1		1
Dividends declared				(314)
Disposition of the Enterprise business, net of tax of ($16)	(60)		(60)
Balance at Dec. 31, 2014	$ 2,766	$ 1,180	$ (1,855)	$ 3,410	$ 31
Balance (in shares) at Dec. 31, 2014		220,500,000