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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net loss attributable to Boeing Shareholders	$ (4,202)	$ (11,873)	$ (636)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic
Net earnings available to common shareholders	$ (4,202)	$ (11,873)	$ (636)
Basic weighted average shares outstanding	588.0	569.0	566.0
Participating securities	0.4	0.4	0.6
Basic weighted average common shares outstanding	587.6	568.6	565.4
Basic weighted average shares outstanding	588.0	569.0	566.0
Dilutive potential common shares				[1]
Dilutive weighted average shares outstanding	588.0	569.0	566.0
Participating securities	0.4	0.4	0.6
Diluted weighted average common shares outstanding	587.6	568.6	565.4
Income (Loss) from Continuing Operations, Per Basic Share			$ (1.12)
Income (Loss) from Continuing Operations, Per Diluted Share			$ (1.12)

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