Summary of Business Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Total revenues	$ 18,104	$ 15,956	$ 55,776	$ 46,628
Loss from operations	(808)	(2,792)	(1,056)	(3,174)
Other income, net	297	288	919	722
Interest and debt expense	(589)	(628)	(1,859)	(1,921)
Loss before income taxes	(1,100)	(3,132)	(1,996)	(4,373)
Income tax expense	(538)	(176)	(216)	(17)
Net loss	(1,638)	(3,308)	(2,212)	(4,390)
Less: net loss attributable to noncontrolling interest	(2)	(33)	(13)	(89)
Net loss attributable to Boeing Shareholders	(1,636)	(3,275)	(2,199)	(4,301)
Operating Segments
Segment Reporting Information [Line Items]
Loss from operations	(818)	(2,687)	(852)	(3,301)
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Total revenues	7,876	6,303	23,420	16,755
Loss from operations	(678)	(622)	(1,676)	(1,738)
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Total revenues	5,481	5,307	18,187	16,981
Loss from operations	(924)	(2,798)	(1,663)	(3,656)
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Total revenues	4,812	4,432	14,278	13,044
Loss from operations	784	733	2,487	2,093
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Total revenues	(65)	(86)	(109)	(152)
Unallocated items, eliminations and other	(271)	(384)	(1,067)	(719)
FAS/CAS service cost adjustment	$ 281	$ 279	$ 863	$ 846