Consolidated Statements of Earnings and Comprehensive (Loss) Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Sales
Product	$ 14,015	$ 14,033	$ 13,838
Service	9,964	10,628	11,380
Total sales	23,979	24,661	25,218
Operating costs and expenses
Product	10,431	10,623	10,415
Service	7,947	8,659	9,223
General and administrative expenses	2,405	2,256	2,450
Operating income	3,196	3,123	3,130
Other (expense) income
Interest expense	(282)	(257)	(212)
Other, net	23	(3)	47
Earnings before income taxes	2,937	2,863	2,965
Federal and foreign income tax expense	868	911	987
Net earnings	2,069	1,952	1,978
Basic earnings per share (in dollars per share)	$ 9.91	$ 8.50	$ 7.96
Weighted-average common shares outstanding, in millions	208.8	229.6	248.6
Diluted earnings per share (in dollars per share)	$ 9.75	$ 8.35	$ 7.81
Weighted-average diluted shares outstanding, in millions	212.1	233.9	253.4
Net earnings (from above)	2,069	1,952	1,978
Other comprehensive (loss) income
Change in unamortized benefit plan costs, net of tax benefit (expense) of $1,423 in 2014, ($1,177) in 2013 and $860 in 2012	(2,316)	1,790	(1,303)
Change in cumulative translation adjustment	(59)	14	8
Other Comprehensive Income (loss), other adjustment, net of tax	3	(1)	(2)
Other comprehensive (loss) income, net of tax	(2,372)	1,803	(1,297)
Comprehensive (loss) income	$ (303)	$ 3,755	$ 681