Business Segment Information (Schedule Of Segment Reporting Information, By Segment) (Details) (USD $) In Millions	3 Months Ended				9 Months Ended
	Sep. 25, 2011		Jun. 26, 2011	Sep. 26, 2010	Sep. 25, 2011		Sep. 26, 2010	Dec. 31, 2010
Total net sales	$ 12,119			$ 11,343	$ 34,288		$ 32,910
Total operating profit	1,041			877	2,898		2,934
Severance charges	(39)		(97)	(178)	(136)		(178)
Total intersegment revenue	581			532	1,626		1,566
Total assets	36,187				36,187			35,113
Aeronautics [Member]
Total net sales	3,995			3,294	10,600		9,377
Total operating profit	447			389	1,178		1,090
Severance charges			(49)
Total intersegment revenue	58			16	140		90
Total assets	5,644				5,644			5,231
Electronic Systems [Member]
Total net sales	3,633			3,556	10,832		10,290
Total operating profit	444			428	1,348		1,252
Total intersegment revenue	266			249	770		698
Total assets	9,899				9,899			9,925
Information Systems & Global Solutions [Member]
Total net sales	2,323			2,525	6,833		7,281
Total operating profit	213			208	620		615
Total intersegment revenue	227			239	635		690
Total assets	5,332				5,332			5,463
Space Systems [Member]
Total net sales	2,168			1,968	6,023		5,962
Total operating profit	251			236	731		689
Severance charges			(48)
Total intersegment revenue	30			28	81		88
Total assets	3,177				3,177			3,041
Unallocated Amount To Segment [Member]
Total operating profit	(275)			(206)	(843)		(534)
Total assets	12,135	[1]			12,135	[1]		11,057	[1]
Total Business Segments [Member]
Total operating profit	1,355			1,261	3,877		3,646
Total assets	24,052				24,052			23,660
Assets Of Discontinued Operation Held For Sale [Member]
Total assets								396
Severance Charges [Member]
Severance charges	$ (39)			$ (178)	$ (136)		$ (178)

[1] Corporate assets primarily include cash and cash equivalents, short-term investments, deferred income taxes, environmental assets, and investments held in a Rabbi Trust.