INFORMATION ON BUSINESS SEGMENTS - Total Assets For Each Business Segment (Details) - USD ($) $ in Millions	Sep. 28, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Total assets	$ 60,276	$ 55,617
Business Segments
Segment Reporting Information [Line Items]
Total assets	46,462	43,588
Business Segments | Aeronautics
Segment Reporting Information [Line Items]
Total assets	14,726	13,223
Business Segments | Missiles and Fire Control
Segment Reporting Information [Line Items]
Total assets	6,899	5,952
Business Segments | Rotary and Mission Systems
Segment Reporting Information [Line Items]
Total assets	16,972	17,025
Business Segments | Space
Segment Reporting Information [Line Items]
Total assets	7,865	7,388
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 13,814	$ 12,029