Summary of Quarterly Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 31, 2015	[1]	Sep. 27, 2015		Jun. 28, 2015		Mar. 29, 2015		Dec. 31, 2014		Sep. 28, 2014		Jun. 29, 2014		Mar. 30, 2014		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information [Line Items]
Net sales	$ 12,917		$ 11,461		$ 11,643		$ 10,111		$ 12,530		$ 11,114		$ 11,306		$ 10,650		$ 46,132	$ 45,600	$ 45,358
Operating profit	1,281		1,354		1,445		1,356		1,342		1,392		1,426		1,432		5,436	5,592	4,505
Net earnings	$ 933	[2]	$ 865	[2]	$ 929	[2]	$ 878	[2]	$ 904	[3]	$ 888	[3]	$ 889	[3]	$ 933	[3]	$ 3,605	$ 3,614	$ 2,981
Basic earnings per share	$ 3.05	[4]	$ 2.80	[4]	$ 2.98	[4]	$ 2.78	[4]	$ 2.87		$ 2.81		$ 2.81		$ 2.92		$ 11.62	$ 11.41	$ 9.29
Diluted earnings per share	$ 3.01		$ 2.77		$ 2.94		$ 2.74		$ 2.82		$ 2.76		$ 2.76		$ 2.87		$ 11.46	$ 11.21	$ 9.13

[1] The fourth quarter of 2015 incorporates the results of Sikorsky from the November 6, 2015 acquisition date through December 31, 2015, including approximately $400 million in net sales and about $45 million in operating loss, inclusive of intangible amortization and adjustments required to account for the acquisition.

[2] The fourth quarter of 2015 includes a charge for workforce reductions of approximately $67 million ($44 million after tax) and a tax benefit of about $71 million due to the retroactive reinstatement of the R&D tax credit in 2015.

[3] The fourth quarter of 2014 includes a charge of approximately $119 million ($107 million after tax) related to a non-cash goodwill impairment charge and a tax benefit of about $45 million due to the retroactive reinstatement of the R&D tax credit in 2014.

[4] The sum of the quarterly earnings per share amounts do not equal the earnings per share amounts included on our Statements of Earnings, primarily due to the timing of our share repurchases during each respective year.