Condensed Consolidated Statements Of Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Non-Controlling Interest
Balance at Mar. 31, 2020	$ (9,360)	$ 5,061	$ 6,595	$ (54,842)	$ 49,854	$ (16,333)	$ 305
Net loss attributable to Boeing Shareholders	(2,376)				(2,376)
Net Income (Loss) Attributable to Noncontrolling Interest	(19)						(19)
Net earnings/(loss)	(2,395)
Other Comprehensive Income (Loss), Tax	(68)
Other comprehensive income, net of tax	308					308
Share-based compensation and related dividend equivalents	60		60
Treasury shares issued for stock options exercised, net	7		(4)	11
Treasury shares issued for other share-based plans, net	(1)		(3)	2
Balance at Jun. 30, 2020	(11,382)	5,061	6,648	(54,829)	47,478	(16,025)	285
Changes in noncontrolling interests	(1)						(1)
Balance at Dec. 31, 2020	(18,075)	5,061	7,787	(52,641)	38,610	(17,133)	241
Net loss attributable to Boeing Shareholders	50				50
Net Income (Loss) Attributable to Noncontrolling Interest	(44)						(44)
Net earnings/(loss)	6
Other Comprehensive Income (Loss), Tax	(131)
Other comprehensive income, net of tax	472					472
Share-based compensation and related dividend equivalents	493		493
Treasury shares issued for stock options exercised, net	29		(19)	48
Treasury shares issued for other share-based plans, net	(38)		(76)	38
Treasury shares issued for 401(k) contribution	628		296	332
Balance at Jun. 30, 2021	(16,485)	5,061	8,481	(52,223)	38,660	(16,661)	197
Balance at Mar. 31, 2021	(17,841)	5,061	8,155	(52,395)	38,073	(16,952)	217
Net loss attributable to Boeing Shareholders	587
Net Income (Loss) Attributable to Noncontrolling Interest	(20)						(20)
Net earnings/(loss)	567
Other Comprehensive Income (Loss), Tax	(68)
Other comprehensive income, net of tax	291					291
Share-based compensation and related dividend equivalents	172		172
Treasury shares issued for stock options exercised, net	6		(3)	9
Treasury shares issued for other share-based plans, net	(2)		(3)	1
Treasury shares issued for 401(k) contribution	322		160	162
Balance at Jun. 30, 2021	$ (16,485)	$ 5,061	$ 8,481	$ (52,223)	$ 38,660	$ (16,661)	$ 197