Earnings Per Share (Schedule Of Weighted-Average Number Of Shares Outstanding Used To Compute Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to Boeing Shareholders		$ (1,219)	$ (537)
Undistributed Earnings Allocated to Participating Securities, Basic
Net (loss)/earnings available to common shareholders		$ (1,219)	$ (537)
Basic weighted average shares outstanding		591.7	585.4
Participating securities	[1]	0.3	0.4
Basic weighted average common shares outstanding		591.4	585.0
Dilutive potential common shares	[2]
Diluted weighted average shares outstanding		591.7	585.4
Participating securities	[1]	0.3	0.4
Diluted weighted average common shares outstanding		591.4	585.0
Earnings Per Share, Basic		$ (2.06)	$ (0.92)
Earnings Per Share, Diluted		$ (2.06)	$ (0.92)

[1] Participating securities include certain instruments in our deferred compensation plan.

[2] Diluted earnings per share includes any dilutive impact of stock options, restricted stock units, performance-based restricted stock units and performance awards.