Segment Information Sales by Geographic Location (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 39,290	$ 36,602	$ 35,667
Sales percentage	100.00%	100.00%	100.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 34,385	$ 31,754	$ 30,685
Sales percentage	88.00%	87.00%	86.00%
Asia/Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 1,568	$ 1,802	$ 1,939
Sales percentage	4.00%	5.00%	5.00%
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 882	$ 794	$ 936
Sales percentage	2.00%	2.00%	3.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 2,455	$ 2,252	$ 2,107
Sales percentage	6.00%	6.00%	6.00%
Aeronautics Systems | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 9,167	$ 8,948	$ 9,649
Sales percentage	87.00%	87.00%	87.00%
Aeronautics Systems | Asia/Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 607	$ 708	$ 896
Sales percentage	6.00%	7.00%	8.00%
Aeronautics Systems | All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 36	$ 51	$ 64
Sales percentage	0.00%	0.00%	1.00%
Aeronautics Systems | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 240	$ 239	$ 189
Aeronautics Systems | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 736	$ 585	$ 461
Sales percentage	7.00%	6.00%	4.00%
Aeronautics Systems | Operating Segments [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 10,786	$ 10,531	$ 11,259
Sales percentage	100.00%	100.00%	100.00%
Defense Systems | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 3,573	$ 3,415	$ 3,670
Sales percentage	71.00%	71.00%	74.00%
Defense Systems | Asia/Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 419	$ 454	$ 465
Sales percentage	8.00%	10.00%	9.00%
Defense Systems | All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 471	$ 427	$ 538
Sales percentage	9.00%	9.00%	11.00%
Defense Systems | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 798	$ 806	$ 789
Defense Systems | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 601	$ 477	$ 314
Sales percentage	12.00%	10.00%	6.00%
Defense Systems | Operating Segments [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 5,862	$ 5,579	$ 5,776
Sales percentage	100.00%	100.00%	100.00%
Mission Systems [Member] | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 8,084	$ 7,572	$ 7,295
Sales percentage	82.00%	81.00%	80.00%
Mission Systems [Member] | Asia/Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 460	$ 531	$ 518
Sales percentage	5.00%	6.00%	6.00%
Mission Systems [Member] | All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 338	$ 301	$ 324
Sales percentage	3.00%	3.00%	4.00%
Mission Systems [Member] | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 1,054	$ 1,015	$ 993
Mission Systems [Member] | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 959	$ 977	$ 1,004
Sales percentage	10.00%	10.00%	10.00%
Mission Systems [Member] | Operating Segments [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 10,895	$ 10,396	$ 10,134
Sales percentage	100.00%	100.00%	100.00%
Space Systems | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 13,561	$ 11,819	$ 10,071
Sales percentage	98.00%	97.00%	96.00%
Space Systems | Asia/Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 82	$ 109	$ 60
Sales percentage	1.00%	1.00%	1.00%
Space Systems | All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 37	$ 15	$ 10
Sales percentage	0.00%	0.00%	0.00%
Space Systems | Intersegment Sales [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 107	$ 119	$ 139
Space Systems | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 159	$ 213	$ 328
Sales percentage	1.00%	2.00%	3.00%
Space Systems | Operating Segments [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 13,946	$ 12,275	$ 10,608
Sales percentage	100.00%	100.00%	100.00%