Summary of Business Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Total revenues	$ 16,569	$ 17,921
Loss from operations	(86)	(149)
Other income, net	277	302
Interest and debt expense	(569)	(649)
Loss before income taxes	(378)	(496)
Income tax benefit	23	71
Net loss	(355)	(425)
Less: net loss attributable to noncontrolling interest	(12)	(11)
Net loss attributable to Boeing Shareholders	(343)	(414)
Operating Segments
Segment Reporting Information [Line Items]
Loss from operations	(76)	20
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Total revenues	4,653	6,704
Loss from operations	(1,143)	(615)
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Total revenues	6,950	6,539
Loss from operations	151	(212)
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Total revenues	5,045	4,720
Loss from operations	916	847
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Total revenues	(79)	(42)
Unallocated items, eliminations and other	(312)	(460)
FAS/CAS service cost adjustment	$ 302	$ 291