Segment Information (Unaudited) Reconciliation to Consolidated Operating Income (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Revenues	$ 10,218	$ 9,576	$ 20,351	$ 18,877
Operating income	1,090	967	2,161	1,914
Total operating costs and expenses	9,128	8,609	18,190	16,963
Interest and Debt Expense	(154)	(147)	(300)	(276)
Non-operating FAS pension benefit	167	133	335	265
Other, net	43	34	81	82
Earnings before income taxes	1,146	987	2,277	1,985
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	1,101	1,052	2,205	2,054
Operating Segments [Member] | Aeronautics Systems [Member]
Segment Reporting Information [Line Items]
Revenues	2,963	2,595	5,932	5,110
Operating income	295	278	592	515
Operating Segments [Member] | Defense Systems [Member]
Segment Reporting Information [Line Items]
Revenues	1,513	1,420	2,925	2,796
Operating income	204	166	381	326
Operating Segments [Member] | Mission Systems [Member]
Segment Reporting Information [Line Items]
Revenues	2,773	2,641	5,432	5,204
Operating income	361	401	739	761
Operating Segments [Member] | Space Systems [Member]
Segment Reporting Information [Line Items]
Revenues	3,573	3,488	7,228	6,838
Operating income	324	283	656	596
Intersegment sales
Segment Reporting Information [Line Items]
Revenues	604	568	1,166	1,071
Operating income	83	76	163	144
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
FAS/CAS operating adjustment	6	(21)	12	(42)
Total operating costs and expenses	$ (17)	$ (64)	$ (56)	$ (98)