Information On Business Segments (Schedule Of Customer Activity) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 25, 2011		Jun. 26, 2011		Mar. 27, 2011		Dec. 31, 2010		Sep. 26, 2010		Jun. 27, 2010		Mar. 28, 2010		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Segment Reporting Information [Line Items]
Sales Revenue Net	$ 12,211	[1]	$ 12,119	[1]	$ 11,543	[1],[2]	$ 10,626	[1],[2]	$ 12,761	[1]	$ 11,343	[1]	$ 11,259	[1],[2]	$ 10,308	[1],[2]	$ 46,499		$ 45,671		$ 43,867
Aeronautics [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	14,362		13,109		11,988
Electronic Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	14,622		14,399		13,630
Information Systems & Global Solutions [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	9,381		9,921		9,599
Space Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	8,134		8,242		8,650
U.S. Government [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	38,001		38,860		37,387
U.S. Government [Member] | Aeronautics [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	10,749		10,623		9,966
U.S. Government [Member] | Electronic Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	10,662		10,749		9,864
U.S. Government [Member] | Information Systems & Global Solutions [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	8,769		9,488		9,156
U.S. Government [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	7,821		8,000		8,401
International [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	8,068	[3]	6,437	[3]	6,145	[3]
International [Member] | Aeronautics [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	3,577	[3]	2,458	[3]	1,973	[3]
International [Member] | Electronic Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	3,883	[3]	3,562	[3]	3,664	[3]
International [Member] | Information Systems & Global Solutions [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	464	[3]	320	[3]	267	[3]
International [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	144	[3]	97	[3]	241	[3]
United States Commerical And Other [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	430		374		335
United States Commerical And Other [Member] | Aeronautics [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	36		28		49
United States Commerical And Other [Member] | Electronic Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	77		88		102
United States Commerical And Other [Member] | Information Systems & Global Solutions [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	148		113		176
United States Commerical And Other [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Sales Revenue Net																	$ 169		$ 145		$ 8

[1] The decrease in net sales from the fourth quarter of 2010 to the fourth quarter of 2011 is primarily due to declines in net sales at our Electronic Systems, IS&GS, and Space Systems business segments. The decline at Electronic Systems was primarily due to fewer deliveries on tactical missile programs and net declines in volume on various other programs. The decline at IS&GS was primarily due to lower volume due to the absence of the Decennial Response Integration System (DRIS) program that supported the 2010 U.S. census and a decline in activities on the Airborne Maritime Fixed Station Joint Tactical Radio System (JTRS). The decline at Space Systems was primarily due to decreased volume related to satellite activities.

[2] Net sales, operating profit, and net earnings (loss) from continuing and discontinued operations varies from the amounts previously reported on Forms 10-Q as a result of Savi being classified as discontinued operations in the third quarter of 2011.

[3] Sales made to foreign governments through the U.S. Government (i.e., foreign military sales) are included in the "International" category.