INFORMATION ON BUSINESS SEGMENTS - Total Assets For Each Business Segment (Details) - USD ($) $ in Millions	Sep. 24, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total assets	$ 56,666	$ 52,880
Business Segments
Segment Reporting Information [Line Items]
Total assets	43,302	42,182
Business Segments | Aeronautics
Segment Reporting Information [Line Items]
Total assets	13,252	12,055
Business Segments | Missiles and Fire Control
Segment Reporting Information [Line Items]
Total assets	5,706	5,788
Business Segments | Rotary and Mission Systems
Segment Reporting Information [Line Items]
Total assets	17,822	17,988
Business Segments | Space
Segment Reporting Information [Line Items]
Total assets	6,522	6,351
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 13,364	$ 10,698