INFORMATION ON BUSINESS SEGMENTS - Summary Operating Results For Each Business Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 25, 2023	Jun. 26, 2022	Jun. 25, 2023	Jun. 26, 2022
Net sales
Total net sales	$ 16,693	$ 15,446	$ 31,819	$ 30,410
Operating profit
Total operating profit	2,135	1,963	4,172	3,896
Aeronautics
Net sales
Total net sales	6,875	5,862	13,144	12,263
Missiles and Fire Control
Net sales
Total net sales	2,755	2,747	5,143	5,199
Rotary and Mission Systems
Net sales
Total net sales	3,897	4,012	7,407	7,564
Space
Net sales
Total net sales	3,166	2,825	6,125	5,384
Business Segments
Net sales
Total net sales	16,693	15,446	31,819	30,410
Operating profit
Total operating profit	1,855	1,763	3,537	3,481
Business Segments | Aeronautics
Net sales
Total net sales	6,875	5,862	13,144	12,263
Operating profit
Total operating profit	718	613	1,393	1,292
Business Segments | Missiles and Fire Control
Net sales
Total net sales	2,755	2,747	5,143	5,199
Operating profit
Total operating profit	371	418	748	803
Business Segments | Rotary and Mission Systems
Net sales
Total net sales	3,897	4,012	7,407	7,564
Operating profit
Total operating profit	454	461	804	867
Business Segments | Space
Net sales
Total net sales	3,166	2,825	6,125	5,384
Operating profit
Total operating profit	312	271	592	519
Unallocated items
Unallocated items
Total FAS/CAS pension operating adjustment	416	425	831	851
Intangible asset amortization expense	(62)	(62)	(124)	(124)
Other, net	(74)	(163)	(72)	(312)
Total unallocated items	280	200	635	415
Intersegment sales
Net sales
Total net sales	827	771	1,601	1,525
Intersegment sales | Aeronautics
Net sales
Total net sales	71	58	124	118
Intersegment sales | Missiles and Fire Control
Net sales
Total net sales	159	161	305	317
Intersegment sales | Rotary and Mission Systems
Net sales
Total net sales	505	453	994	908
Intersegment sales | Space
Net sales
Total net sales	$ 92	$ 99	$ 178	$ 182