Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenues	$ 10,133	$ 9,301
Operating income	1,071	947
Total operating costs and expenses	9,062	8,354
Interest and Debt Expense	(146)	(129)
Non-operating FAS pension benefit	168	132
Other, net	38	48
Earnings before income taxes	1,131	998
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,104	1,002
Operating Segments [Member] | Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Revenues	2,969	2,515
Operating income	297	237
Operating Segments [Member] | Defense Systems [Member]
Segment Reporting Information [Line Items]
Revenues	1,412	1,376
Operating income	177	160
Operating Segments [Member] | Mission Systems [Member]
Segment Reporting Information [Line Items]
Revenues	2,659	2,563
Operating income	378	360
Operating Segments [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Revenues	3,655	3,350
Operating income	332	313
Intersegment sales
Segment Reporting Information [Line Items]
Revenues	562	503
Operating income	80	68
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	6	(21)
Total operating costs and expenses	$ (39)	$ (34)