Segment Information Assets (Details 6) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total assets	$ 42,579	$ 44,469
Operating Segments [Member] | Aeronautics Systems
Segment Reporting Information [Line Items]
Total assets	9,423	8,997
Operating Segments [Member] | Defense Systems
Segment Reporting Information [Line Items]
Total assets	5,911	7,352
Operating Segments [Member] | Mission Systems
Segment Reporting Information [Line Items]
Total assets	9,869	10,029
Operating Segments [Member] | Space Systems
Segment Reporting Information [Line Items]
Total assets	10,760	10,028
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total assets	$ 6,616	$ 8,063