Segment Information Sales by Customer Type (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue, Major Customer [Line Items]
Sales	$ 41,033	$ 39,290	$ 36,602
Sales percentage	100.00%	100.00%	100.00%
US Government
Revenue, Major Customer [Line Items]
Sales	$ 35,436	$ 33,882	$ 31,323
Sales percentage	87.00%	86.00%	86.00%
International
Revenue, Major Customer [Line Items]
Sales	$ 5,000	$ 4,905	$ 4,848
Sales percentage	12.00%	13.00%	13.00%
Other Customers
Revenue, Major Customer [Line Items]
Sales	$ 597	$ 503	$ 431
Sales percentage	1.00%	1.00%	1.00%
Intersegment Sales
Revenue, Major Customer [Line Items]
Sales	$ 2,687	$ 2,553	$ 2,524
Aeronautics Systems | US Government
Revenue, Major Customer [Line Items]
Sales	$ 10,087	$ 9,132	$ 8,930
Sales percentage	86.00%	87.00%	87.00%
Aeronautics Systems | International
Revenue, Major Customer [Line Items]
Sales	$ 1,678	$ 1,379	$ 1,344
Sales percentage	14.00%	13.00%	13.00%
Aeronautics Systems | Other Customers
Revenue, Major Customer [Line Items]
Sales	$ 22	$ 35	$ 18
Sales percentage	0.00%	0.00%	0.00%
Aeronautics Systems | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Sales	$ 12,030	$ 10,786	$ 10,531
Sales percentage	100.00%	100.00%	100.00%
Aeronautics Systems | Intersegment Sales
Revenue, Major Customer [Line Items]
Sales	$ 243	$ 240	$ 239
Defense Systems | US Government
Revenue, Major Customer [Line Items]
Sales	$ 6,333	$ 5,946	$ 5,406
Sales percentage	82.00%	79.00%	79.00%
Defense Systems | International
Revenue, Major Customer [Line Items]
Sales	$ 1,301	$ 1,491	$ 1,358
Sales percentage	17.00%	20.00%	20.00%
Defense Systems | Other Customers
Revenue, Major Customer [Line Items]
Sales	$ 71	$ 76	$ 71
Sales percentage	1.00%	1.00%	1.00%
Defense Systems | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Sales	$ 8,560	$ 8,289	$ 7,629
Sales percentage	100.00%	100.00%	100.00%
Defense Systems | Intersegment Sales
Revenue, Major Customer [Line Items]
Sales	$ 855	$ 776	$ 794
Mission Systems [Member] | US Government
Revenue, Major Customer [Line Items]
Sales	$ 8,322	$ 7,999	$ 7,471
Sales percentage	81.00%	81.00%	80.00%
Mission Systems [Member] | International
Revenue, Major Customer [Line Items]
Sales	$ 1,809	$ 1,757	$ 1,809
Sales percentage	18.00%	18.00%	19.00%
Mission Systems [Member] | Other Customers
Revenue, Major Customer [Line Items]
Sales	$ 91	$ 85	$ 101
Sales percentage	1.00%	1.00%	1.00%
Mission Systems [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Sales	$ 11,399	$ 10,895	$ 10,396
Sales percentage	100.00%	100.00%	100.00%
Mission Systems [Member] | Intersegment Sales
Revenue, Major Customer [Line Items]
Sales	$ 1,177	$ 1,054	$ 1,015
Space Systems | US Government
Revenue, Major Customer [Line Items]
Sales	$ 10,694	$ 10,805	$ 9,516
Sales percentage	94.00%	95.00%	95.00%
Space Systems | International
Revenue, Major Customer [Line Items]
Sales	$ 212	$ 278	$ 337
Sales percentage	2.00%	2.00%	3.00%
Space Systems | Other Customers
Revenue, Major Customer [Line Items]
Sales	$ 413	$ 307	$ 241
Sales percentage	4.00%	3.00%	2.00%
Space Systems | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Sales	$ 11,731	$ 11,873	$ 10,570
Sales percentage	100.00%	100.00%	100.00%
Space Systems | Intersegment Sales
Revenue, Major Customer [Line Items]
Sales	$ 412	$ 483	$ 476