Computation of Earnings Per Share - Schedule of Basic and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Aug. 31, 2022	Aug. 31, 2021
Basic earnings per common share:
Net earnings allocable to common shares	[1]	$ 874	$ 1,110
Weighted-average common shares		259.0	266.0
Basic earnings per common share		$ 3.37	$ 4.17
Diluted earnings per common share:
Net earnings allocable to common shares	[1]	$ 874	$ 1,110
Weighted-average common shares		259.0	266.0
Dilutive effect of share-based awards		3.0	5.0
Weighted-average diluted shares		262.0	271.0
Diluted earnings per common share		$ 3.33	$ 4.09
Anti-dilutive options excluded from diluted earnings per common share		5.7	2.7

[1] Net earnings available to participating securities were immaterial in all periods presented.