Segment Information Sales by Contract Type (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue, Contract Type [Line Items]
Sales	$ 41,033	$ 39,290	$ 36,602
Sales percentage	100.00%	100.00%	100.00%
Cost-type
Revenue, Contract Type [Line Items]
Sales	$ 20,964	$ 20,979	$ 18,711
Sales percentage	51.00%	53.00%	51.00%
Fixed-price
Revenue, Contract Type [Line Items]
Sales	$ 20,069	$ 18,311	$ 17,891
Sales percentage	49.00%	47.00%	49.00%
Intersegment Sales
Revenue, Contract Type [Line Items]
Sales	$ 2,687	$ 2,553	$ 2,524
Aeronautics Systems | Cost-type
Revenue, Contract Type [Line Items]
Sales	$ 5,373	$ 5,235	$ 5,013
Sales percentage	46.00%	50.00%	49.00%
Aeronautics Systems | Fixed-price
Revenue, Contract Type [Line Items]
Sales	$ 6,414	$ 5,311	$ 5,279
Sales percentage	54.00%	50.00%	51.00%
Aeronautics Systems | Operating Segments [Member]
Revenue, Contract Type [Line Items]
Sales	$ 12,030	$ 10,786	$ 10,531
Sales percentage	100.00%	100.00%	100.00%
Aeronautics Systems | Intersegment Sales
Revenue, Contract Type [Line Items]
Sales	$ 243	$ 240	$ 239
Defense Systems | Cost-type
Revenue, Contract Type [Line Items]
Sales	$ 4,002	$ 3,991	$ 3,516
Sales percentage	52.00%	53.00%	51.00%
Defense Systems | Fixed-price
Revenue, Contract Type [Line Items]
Sales	$ 3,703	$ 3,522	$ 3,319
Sales percentage	48.00%	47.00%	49.00%
Defense Systems | Operating Segments [Member]
Revenue, Contract Type [Line Items]
Sales	$ 8,560	$ 8,289	$ 7,629
Sales percentage	100.00%	100.00%	100.00%
Defense Systems | Intersegment Sales
Revenue, Contract Type [Line Items]
Sales	$ 855	$ 776	$ 794
Mission Systems [Member] | Cost-type
Revenue, Contract Type [Line Items]
Sales	$ 4,589	$ 4,116	$ 3,622
Sales percentage	45.00%	42.00%	39.00%
Mission Systems [Member] | Fixed-price
Revenue, Contract Type [Line Items]
Sales	$ 5,633	$ 5,725	$ 5,759
Sales percentage	55.00%	58.00%	61.00%
Mission Systems [Member] | Operating Segments [Member]
Revenue, Contract Type [Line Items]
Sales	$ 11,399	$ 10,895	$ 10,396
Sales percentage	100.00%	100.00%	100.00%
Mission Systems [Member] | Intersegment Sales
Revenue, Contract Type [Line Items]
Sales	$ 1,177	$ 1,054	$ 1,015
Space Systems | Cost-type
Revenue, Contract Type [Line Items]
Sales	$ 7,000	$ 7,637	$ 6,560
Sales percentage	62.00%	67.00%	65.00%
Space Systems | Fixed-price
Revenue, Contract Type [Line Items]
Sales	$ 4,319	$ 3,753	$ 3,534
Sales percentage	38.00%	33.00%	35.00%
Space Systems | Operating Segments [Member]
Revenue, Contract Type [Line Items]
Sales	$ 11,731	$ 11,873	$ 10,570
Sales percentage	100.00%	100.00%	100.00%
Space Systems | Intersegment Sales
Revenue, Contract Type [Line Items]
Sales	$ 412	$ 483	$ 476