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, 2024	Aug. 31, 2023
Basic earnings per common share:
Net earnings allocable to common shares	[1]	$ 793	$ 1,077
Weighted-average common shares		244.0	251.0
Basic earnings per common share		$ 3.24	$ 4.28
Diluted earnings per common share:
Net earnings allocable to common shares	[1]	$ 793	$ 1,077
Weighted-average common shares		244.0	251.0
Dilutive effect of share-based awards		3.0	3.0
Weighted-average diluted shares		247.0	254.0
Diluted earnings per common share		$ 3.21	$ 4.23
Anti-dilutive options excluded from diluted earnings per common share		4.3	6.2

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