Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (355)	$ (425)
Other comprehensive (loss)/income, net of tax:
Currency translation adjustments	(35)	16
Derivative instruments:
Unrealized (losses)/gains arising during period, net of tax of $19 and ($5)	(65)	18
Reclassification adjustment for losses/(gains) included in net loss, net of tax of ($2) and $1	7	(5)
Total unrealized (loss)/gain on derivative instruments, net of tax	(58)	13
Defined benefit pension plans and other postretirement benefits:
Net actuarial loss arising during the period, net of tax of $17 and $2	(19)	(7)
Amortization of actuarial losses/(gains) included in net periodic pension cost, net of tax of ($12) and $0	11	(2)
Amortization of prior service credits included in net periodic pension cost, net of tax of $12 and $6	(11)	(20)
Pension and postretirement cost related to our equity method investments, net of tax of ($3) and $0	5
Total defined benefit pension plans and other postretirement benefits, net of tax	(14)	(29)
Other comprehensive (loss)/income, net of tax	(107)	0
Comprehensive loss, net of tax	(462)	(425)
Less: Comprehensive loss related to noncontrolling interest	(12)	(11)
Comprehensive loss attributable to Boeing Shareholders, net of tax	$ (450)	$ (414)