Earnings Per Share - Schedule of Weighted Average Number of Shares (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to Boeing Shareholders	$ (2,222)	$ (4,935)	$ (4,202)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic
Net loss available to common shareholders, basic	(2,222)	(4,935)	(4,202)
Net loss available to common shareholders, diluted	$ (2,222)	$ (4,935)	$ (4,202)
Weighted average number of shares issued, basic (in shares)	606.1	595.2	588.0
Participating securities (in shares)	0.3	0.3	0.4
Basic weighted average common shares outstanding (in shares)	605.8	594.9	587.6
Diluted weighted average shares outstanding (in shares)	606.1	595.2	588.0
Participating securities (in shares)	0.3	0.3	0.4
Diluted weighted average common shares outstanding (in shares)	605.8	594.9	587.6
Basic loss per share (in dollars per share)	$ (3.67)	$ (8.30)	$ (7.15)
Diluted loss per share (in dollars per share)	$ (3.67)	$ (8.30)	$ (7.15)