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INFORMATION ON BUSINESS SEGMENTS - Summary of Operating Results For Each Business Segment (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 24, 2017	Sep. 25, 2016	Sep. 24, 2017	Sep. 25, 2016	Aug. 24, 2016
Net sales
Total intersegment sales	$ 12,169	$ 11,551	$ 35,911	$ 33,496
Operating profit
Total operating profit	1,428	1,588	4,062	4,121
Severance charges	0	0	0	80
Equity method investee impairment			64
AWE
Operating profit
Ownership interest percentage owned immediately before acquisition					33.00%
Ownership interest percentage owned subsequent acquisition					51.00%
Gain associated with obtaining controlling interest of AWE				$ 104
Increase in net earnings from continuing operations (in dollars per share)				$ 0.34
IS&GS | Restatement Adjustment
Operating profit
Corporate overhead costs incurred		17		$ 82
Business segments
Operating profit
Total operating profit	1,249	1,423	3,628	3,810
Business segments | Aeronautics
Net sales
Total intersegment sales	4,771	4,188	14,102	12,362
Operating profit
Total operating profit	517	437	1,503	1,335
Business segments | Missiles and Fire Control
Net sales
Total intersegment sales	1,793	1,737	4,919	4,851
Operating profit
Total operating profit	270	289	757	763
Business segments | Rotary and Mission Systems
Net sales
Total intersegment sales	3,353	3,346	9,864	9,653
Operating profit
Total operating profit	244	247	606	678
Business segments | Space Systems
Net sales
Total intersegment sales	2,252	2,280	7,026	6,630
Operating profit
Total operating profit	218	450	762	1,034
Business segments | Space Systems | AWE
Operating profit
Gain associated with obtaining controlling interest of AWE		127		127
Segment reconciling items
Operating profit
FAS pension expense	(342)	(256)	(1,030)	(758)
Less: CAS pension cost	562	482	1,686	1,430
FAS/CAS pension adjustment	220	226	656	672
Stock-based compensation	(32)	(28)	(133)	(124)
Severance charges	0	0	0	(80)
Other, net	(9)	(33)	(89)	(157)
Total unallocated items	179	165	434	311
Intersegment sales
Net sales
Total intersegment sales	620	601	1,865	1,802
Intersegment sales | Aeronautics
Net sales
Total intersegment sales	33	30	98	105
Intersegment sales | Missiles and Fire Control
Net sales
Total intersegment sales	104	81	253	225
Intersegment sales | Rotary and Mission Systems
Net sales
Total intersegment sales	452	469	1,438	1,382
Intersegment sales | Space Systems
Net sales
Total intersegment sales	$ 31	21	$ 76	$ 90
Net earnings from continuing operations | AWE
Operating profit
Gain associated with obtaining controlling interest of AWE		$ 104
Increase in net earnings from continuing operations (in dollars per share)		$ 0.34

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