Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,439)	$ (149)	$ (1,794)	$ (574)
Other comprehensive (loss)/income, net of tax:
Currency translation adjustments	11	(6)	(24)	10
Derivative instruments:
Unrealized losses arising during period, net of tax of $22, $7, $3 and $12	(11)	(43)	(76)	(25)
Reclassification adjustment for losses/(gains) included in net loss, net of tax of ($8), $1, ($6) and $0	19	3	26	(2)
Total unrealized (loss)/gain on derivative instruments, net of tax	8	(40)	(50)	(27)
Defined benefit pension plans and other postretirement benefits:
Net actuarial (loss)/gain arising during the period, net of tax of $17, $2, $0 and $0	1	1	(18)	(6)
Amortization of actuarial losses/(gains) included in net periodic benefit cost, net of tax of ($20), $1, ($8) and $1	15	(2)	26	(4)
Amortization of prior service credits included in net periodic benefit cost, net of tax of $20, $12, $8 and $6	(15)	(20)	(26)	(40)
Pension and postretirement cost related to our equity method investments, net of tax of ($3), $0, $0 and $0			5
Total defined benefit pension plans and other postretirement benefits, net of tax	1	(21)	(13)	(50)
Other comprehensive (loss)/income, net of tax	20	(67)	(87)	(67)
Comprehensive loss, net of tax	(1,419)	(216)	(1,881)	(641)
Less: Comprehensive loss related to noncontrolling interest			(12)	(11)
Comprehensive loss attributable to Boeing Shareholders, net of tax	$ (1,419)	$ (216)	$ (1,869)	$ (630)