Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,638)	$ (3,308)	$ (2,212)	$ (4,390)
Other comprehensive (loss)/income, net of tax:
Currency translation adjustments	(39)	(71)	(29)	(123)
Unrealized gain/(loss) on certain investments, net of tax of $0, $0, $0 and $0	1	(2)	1	(2)
Derivative instruments:
Unrealized loss arising during period, net of tax of $17, $46, $10 and $25	(35)	(83)	(60)	(157)
Reclassification adjustment for losses/(gains) included in net loss, net of tax of $0, ($6), ($1) and $2	4	(6)	2	24
Total unrealized loss on derivative instruments, net of tax	(31)	(89)	(58)	(133)
Defined benefit pension plans and other postretirement benefits:
Net actuarial (loss)/gain arising during the period, net of tax of $2, $0, $0 and $0	1		(5)
Amortization of actuarial (gains)/losses included in net periodic pension cost, net of tax of $1, ($129), $0 and ($45)	(2)	155	(6)	469
Amortization of prior service credits included in net periodic pension cost, net of tax of $17, $19, $5 and $7	(21)	(22)	(61)	(68)
Pension and postretirement cost related to our equity method investments, net of tax of $0, $0, $0 and $0		(2)		(2)
Total defined benefit pension plans and other postretirement benefits, net of tax	(22)	131	(72)	399
Other comprehensive (loss)/income, net of tax	(91)	(31)	(158)	141
Comprehensive loss, net of tax	(1,729)	(3,339)	(2,370)	(4,249)
Less: Comprehensive loss related to noncontrolling interest	(2)	(33)	(13)	(89)
Comprehensive loss attributable to Boeing Shareholders, net of tax	$ (1,727)	$ (3,306)	$ (2,357)	$ (4,160)