INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2026	Aug. 31, 2025	May 31, 2026
Income Tax Disclosure [Abstract]
Effective income tax rate	22.70%	21.10%
Total gross unrecognized tax benefits, excluding related interest and penalties	$ 931		$ 953
Total gross unrecognized tax benefits, excluding related interest and penalties, amount which would affect the Company's effective tax rate if recognized in future periods	745
Accrued interest and penalties related to uncertain tax positions (excluding federal benefit)	402		$ 438
Estimated decrease in total gross unrecognized tax benefits as a result of resolutions of global tax examinations and expiration of applicable statutes of limitations	$ 184

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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