Summary of Business Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - 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]
Total revenues	$ 16,866	$ 19,751	$ 33,435	$ 37,672
Loss from operations	(1,090)	(99)	(1,176)	(248)
Other income, net	248	320	525	622
Interest and debt expense	(673)	(621)	(1,242)	(1,270)
Loss before income taxes	(1,515)	(400)	(1,893)	(896)
Income tax benefit	76	251	99	322
Net loss	(1,439)	(149)	(1,794)	(574)
Less: net loss attributable to noncontrolling interest			(12)	(11)
Net loss attributable to Boeing Shareholders	(1,439)	(149)	(1,782)	(563)
Operating Segments
Segment Reporting Information [Line Items]
Loss from operations	(758)	(54)	(834)	(34)
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Total revenues	6,003	8,840	10,656	15,544
Loss from operations	(715)	(383)	(1,858)	(998)
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Total revenues	6,021	6,167	12,971	12,706
Loss from operations	(913)	(527)	(762)	(739)
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Total revenues	4,889	4,746	9,934	9,466
Loss from operations	870	856	1,786	1,703
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Total revenues	(47)	(2)	(126)	(44)
Unallocated items, eliminations and other	(634)	(336)	(946)	(796)
FAS/CAS service cost adjustment	$ 302	$ 291	$ 604	$ 582