Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Sales and Service Revenues
Product sales	$ 3,780	$ 3,968	$ 11,352	$ 12,159
Service revenues	2,832	3,103	8,554	9,081
Total sales and service revenues	6,612	7,071	19,906	21,240
Cost of Sales and Service Revenues
Cost of product sales	2,700	2,918	8,204	8,986
Cost of service revenues	2,498	2,856	7,512	8,283
General and administrative expenses	589	574	1,713	1,819
Operating income	825	723	2,477	2,152
Other (expense) income
Interest expense	(57)	(64)	(168)	(206)
Other, net	(13)	13	(8)	10
Earnings from continuing operations before income taxes	755	672	2,301	1,956
Federal and foreign income tax expense	235	224	765	358
Earnings from continuing operations	520	448	1,536	1,598
Earnings from discontinued operations, net of tax		49	34	79
Net earnings	520	497	1,570	1,677
Basic Earnings Per Share
Continuing operations	$ 1.89	$ 1.53	$ 5.43	$ 5.35
Discontinued operations		$ 0.16	$ 0.12	$ 0.27
Basic earnings per share	$ 1.89	$ 1.69	$ 5.55	$ 5.62
Weighted-average common shares outstanding, in millions	274.9	293.5	283.1	298.6
Diluted Earnings Per Share
Continuing operations	$ 1.86	$ 1.51	$ 5.34	$ 5.28
Discontinued operations		$ 0.16	$ 0.11	$ 0.26
Diluted earnings per share	$ 1.86	$ 1.67	$ 5.45	$ 5.54
Weighted-average diluted shares outstanding, in millions	279.3	297.6	287.9	302.5
Net earnings (from above)	520	497	1,570	1,677
Other comprehensive (loss) income
Change in cumulative translation adjustment	(25)	18	2	(34)
Change in unrealized gain on marketable securities and cash flow hedges, net of tax			(2)
Change in unamortized benefit plan costs, net of tax	22	39	57	118
Other comprehensive (loss) income, net of tax	(3)	57	57	84
Comprehensive income	$ 517	$ 554	$ 1,627	$ 1,761