ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2024
Non-Operating Income (Expenses), net [Abstract]
Interest income	$ 780	$ 578	$ 451
Foreign currency losses, net	(131)	(147)	(228)
Noncontrolling interests in income	(222)	(184)	(186)
Gains (losses) from marketable and non-marketable investments, net	2,811	(278)	(303)
Other income, net	309	91	168
Total non-operating income (expenses), net	$ 3,547	$ 60	$ (98)