EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Aug. 31, 2025	Aug. 31, 2024
Earnings Per Share [Abstract]
Net income		$ 2,927	$ 2,929
Weighted-average common shares outstanding		2,826	2,761
Dilutive effect of employee stock plans		83	90
Dilutive weighted-average common shares outstanding		2,909	2,851
Basic earnings per share		$ 1.04	$ 1.06
Diluted earnings per share		$ 1.01	$ 1.03
Anti-dilutive stock awards excluded from calculation	[1]	2	24

[1] These stock awards primarily relate to contingently issuable shares pursuant to performance stock option arrangements. Such shares could be dilutive in the future.