Summary of Business Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Total revenues	$ 19,496	$ 16,569
Earnings/(loss) from operations	461	(86)
Other income, net	323	277
Interest and debt expense	(708)	(569)
Earnings/(loss) before income taxes	76	(378)
Income tax (expense)/benefit	(107)	23
Net loss	(31)	(355)
Less: net earnings/(loss) attributable to noncontrolling interest	6	(12)
Net loss attributable to Boeing shareholders	(37)	(343)
Less: Mandatory convertible preferred stock dividends accumulated during the period	86
Net loss attributable to Boeing common shareholders	(123)	(343)
Net loss attributable to Boeing common shareholders	(123)	(343)
Operating Segments
Segment Reporting Information [Line Items]
Earnings/(loss) from operations	561	(76)
Operating Segments | Commercial Airplanes
Segment Reporting Information [Line Items]
Total revenues	8,147	4,653
Earnings/(loss) from operations	(537)	(1,143)
Operating Segments | Defense, Space & Security
Segment Reporting Information [Line Items]
Total revenues	6,298	6,950
Earnings/(loss) from operations	155	151
Operating Segments | Global Services
Segment Reporting Information [Line Items]
Total revenues	5,063	5,045
Earnings/(loss) from operations	943	916
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Total revenues	(12)	(79)
Unallocated items, eliminations and other	(362)	(312)
FAS/CAS service cost adjustment	$ 262	$ 302