Information on Business Segments - Income Statement Information For Each Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 65,984	$ 67,044	$ 65,398
Aeronautics
Segment Reporting Information [Line Items]
Net sales	26,987	26,748	26,266
MFC
Segment Reporting Information [Line Items]
Net sales	11,317	11,693	11,257
RMS
Segment Reporting Information [Line Items]
Net sales	16,148	16,789	15,995
Space
Segment Reporting Information [Line Items]
Net sales	11,532	11,814	11,880
United States
Segment Reporting Information [Line Items]
Net sales	49,053	48,605	49,012
United States | Aeronautics
Segment Reporting Information [Line Items]
Net sales	18,176	17,345	18,254
United States | MFC
Segment Reporting Information [Line Items]
Net sales	7,821	8,347	8,415
United States | RMS
Segment Reporting Information [Line Items]
Net sales	11,678	12,070	12,009
United States | Space
Segment Reporting Information [Line Items]
Net sales	11,378	10,843	10,334
Europe
Segment Reporting Information [Line Items]
Net sales	6,267	6,760	6,334
Europe | Aeronautics
Segment Reporting Information [Line Items]
Net sales	4,303	3,973	3,283
Europe | MFC
Segment Reporting Information [Line Items]
Net sales	1,020	910	767
Europe | RMS
Segment Reporting Information [Line Items]
Net sales	857	909	806
Europe | Space
Segment Reporting Information [Line Items]
Net sales	87	968	1,478
Asia Pacific
Segment Reporting Information [Line Items]
Net sales	5,479	6,108	5,176
Asia Pacific | Aeronautics
Segment Reporting Information [Line Items]
Net sales	2,970	3,644	3,162
Asia Pacific | MFC
Segment Reporting Information [Line Items]
Net sales	461	292	280
Asia Pacific | RMS
Segment Reporting Information [Line Items]
Net sales	1,994	2,178	1,666
Asia Pacific | Space
Segment Reporting Information [Line Items]
Net sales	54	(6)	68
Middle East
Segment Reporting Information [Line Items]
Net sales	3,796	4,253	3,940
Middle East | Aeronautics
Segment Reporting Information [Line Items]
Net sales	1,103	1,351	1,344
Middle East | MFC
Segment Reporting Information [Line Items]
Net sales	1,858	2,066	1,749
Middle East | RMS
Segment Reporting Information [Line Items]
Net sales	823	827	847
Middle East | Space
Segment Reporting Information [Line Items]
Net sales	12	9	0
Other
Segment Reporting Information [Line Items]
Net sales	1,389	1,318	936
Other | Aeronautics
Segment Reporting Information [Line Items]
Net sales	435	435	223
Other | MFC
Segment Reporting Information [Line Items]
Net sales	157	78	46
Other | RMS
Segment Reporting Information [Line Items]
Net sales	796	805	667
Other | Space
Segment Reporting Information [Line Items]
Net sales	1	0	0
U.S. Government
Segment Reporting Information [Line Items]
Net sales	48,515	48,150	48,468
U.S. Government | Aeronautics
Segment Reporting Information [Line Items]
Net sales	18,026	17,262	18,175
U.S. Government | MFC
Segment Reporting Information [Line Items]
Net sales	7,814	8,341	8,404
U.S. Government | RMS
Segment Reporting Information [Line Items]
Net sales	11,331	11,736	11,596
U.S. Government | Space
Segment Reporting Information [Line Items]
Net sales	11,344	10,811	10,293
International
Segment Reporting Information [Line Items]
Net sales	16,931	18,439	16,386
International | Aeronautics
Segment Reporting Information [Line Items]
Net sales	8,811	9,403	8,012
International | MFC
Segment Reporting Information [Line Items]
Net sales	3,496	3,346	2,842
International | RMS
Segment Reporting Information [Line Items]
Net sales	4,470	4,719	3,986
International | Space
Segment Reporting Information [Line Items]
Net sales	154	971	1,546
U.S. commercial and other
Segment Reporting Information [Line Items]
Net sales	538	455	544
U.S. commercial and other | Aeronautics
Segment Reporting Information [Line Items]
Net sales	150	83	79
U.S. commercial and other | MFC
Segment Reporting Information [Line Items]
Net sales	7	6	11
U.S. commercial and other | RMS
Segment Reporting Information [Line Items]
Net sales	347	334	413
U.S. commercial and other | Space
Segment Reporting Information [Line Items]
Net sales	34	32	41
Fixed-price
Segment Reporting Information [Line Items]
Net sales	40,969	41,609	39,106
Fixed-price | Aeronautics
Segment Reporting Information [Line Items]
Net sales	19,431	19,734	18,477
Fixed-price | MFC
Segment Reporting Information [Line Items]
Net sales	8,014	8,079	7,587
Fixed-price | RMS
Segment Reporting Information [Line Items]
Net sales	10,460	11,125	10,795
Fixed-price | Space
Segment Reporting Information [Line Items]
Net sales	3,064	2,671	2,247
Cost-reimbursable
Segment Reporting Information [Line Items]
Net sales	25,015	25,435	26,292
Cost-reimbursable | Aeronautics
Segment Reporting Information [Line Items]
Net sales	7,556	7,014	7,789
Cost-reimbursable | MFC
Segment Reporting Information [Line Items]
Net sales	3,303	3,614	3,670
Cost-reimbursable | RMS
Segment Reporting Information [Line Items]
Net sales	5,688	5,664	5,200
Cost-reimbursable | Space
Segment Reporting Information [Line Items]
Net sales	8,468	9,143	9,633
Products
Segment Reporting Information [Line Items]
Net sales	55,466	56,435	54,928
Products | Aeronautics
Segment Reporting Information [Line Items]
Net sales	22,870	22,631	22,327
Products | MFC
Segment Reporting Information [Line Items]
Net sales	10,048	10,269	9,804
Products | RMS
Segment Reporting Information [Line Items]
Net sales	12,811	13,483	12,748
Products | Space
Segment Reporting Information [Line Items]
Net sales	9,737	10,052	10,049
Services
Segment Reporting Information [Line Items]
Net sales	10,518	10,609	10,470
Services | Aeronautics
Segment Reporting Information [Line Items]
Net sales	4,117	4,117	3,939
Services | MFC
Segment Reporting Information [Line Items]
Net sales	1,269	1,424	1,453
Services | RMS
Segment Reporting Information [Line Items]
Net sales	3,337	3,306	3,247
Services | Space
Segment Reporting Information [Line Items]
Net sales	$ 1,795	$ 1,762	$ 1,831