Consolidated Statements of Earnings and Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Sales
Product	$ 13,838	$ 15,073	$ 16,091
Service	11,380	11,339	12,052
Total sales	25,218	26,412	28,143
Operating costs and expenses
Product	10,415	11,491	12,558
Service	9,223	9,295	10,291
General and administrative expenses	2,450	2,350	2,467
Operating income	3,130	3,276	2,827
Other (expense) income
Interest expense	(212)	(221)	(269)
Charge on debt redemption	0	0	(229)
Other, net	47	28	37
Earnings from continuing operations before income taxes	2,965	3,083	2,366
Federal and foreign income tax expense	987	997	462
Earnings from continuing operations	1,978	2,086	1,904
Earnings from discontinued operations, net of tax	0	32	149
Net earnings	1,978	2,118	2,053
Basic earnings per share
Continuing operations (in dollars per share)	$ 7.96	$ 7.54	$ 6.41
Discontinued operations (in dollars per share)	$ 0.00	$ 0.11	$ 0.50
Basic earnings per share (in dollars per share)	$ 7.96	$ 7.65	$ 6.91
Weighted-average common shares outstanding, in millions	248.6	276.8	296.9
Diluted earnings per share
Continuing operations (in dollars per share)	$ 7.81	$ 7.41	$ 6.32
Discontinued operations (in dollars per share)	$ 0.00	$ 0.11	$ 0.50
Diluted earnings per share (in dollars per share)	$ 7.81	$ 7.52	$ 6.82
Weighted-average diluted shares outstanding, in millions	253.4	281.6	301.1
Net earnings (from above)	1,978	2,118	2,053
Other comprehensive income
Change in cumulative translation adjustment	8	(4)	(41)
Change in unrealized (loss) gain on marketable securities and cash flow hedges, net of tax benefit of $0 in 2012, $2 in 2011, and $0 in 2010	(2)	(4)	1
Change in unamortized benefit plan costs, net of tax benefit (expense) of $860 in 2012, $823 in 2011, and $(183) in 2010	(1,303)	(1,249)	297
Other comprehensive (loss) income, net of tax	(1,297)	(1,257)	257
Comprehensive income	$ 681	$ 861	$ 2,310