INFORMATION ON BUSINESS SEGMENTS - Total Assets For Each Business Segment (Details) - USD ($) $ in Millions	Mar. 27, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total assets	$ 51,510	$ 50,873
Business Segments
Segment Reporting Information [Line Items]
Total assets	41,526	39,862
Business Segments | Aeronautics
Segment Reporting Information [Line Items]
Total assets	12,232	10,756
Business Segments | Missiles and Fire Control
Segment Reporting Information [Line Items]
Total assets	5,410	5,243
Business Segments | Rotary and Mission Systems
Segment Reporting Information [Line Items]
Total assets	17,569	17,664
Business Segments | Space
Segment Reporting Information [Line Items]
Total assets	6,315	6,199
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 9,984	$ 11,011