EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
		May 31, 2026	May 31, 2025	May 31, 2024
Earnings Per Share [Abstract]
Net Income (Loss)		$ 17,087	$ 12,443	$ 10,467
Preferred stock dividends		103	0	0
Net income available to common shareholders, Basic		16,984	12,443	10,467
Net income available to common shareholders, Diluted		$ 16,984	$ 12,443	$ 10,467
Weighted-average common shares outstanding		2,860	2,789	2,744
Dilutive effect of employee stock plans		54	77	79
Dilutive weighted-average common shares outstanding		2,914	2,866	2,823
Basic earnings per share attributable to common shareholders		$ 5.94	$ 4.46	$ 3.82
Diluted earnings per share attributable to common shareholders		$ 5.83	$ 4.34	$ 3.71
Stock awards and shares excluded from calculation	[1]	31	23	27

[1] Consists of: (1) anti-dilutive restricted stock-based awards and stock options, both of which were service-based, as calculated using the treasury stock method, (2) anti-dilutive Mandatory Convertible Preferred Stock as calculated using the if-converted method and (3) contingently issuable shares pursuant to PSO arrangements as the performance conditions were not met. These excluded stock awards and shares could be dilutive in the future. See Note 11 for information regarding our stock-based compensation plans.