INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025	May 31, 2025
Income Tax Disclosure [Abstract]
Effective income tax rate		20.70%	15.70%
Non-cash deferred income tax benefit	$ 133
Total gross unrecognized tax benefits, excluding related interest and penalties		$ 969		$ 1,026
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		753
Accrued interest and penalties related to uncertain tax positions (excluding federal benefit)		433		$ 376
Estimated decrease in total gross unrecognized tax benefits as a result of resolutions of global tax examinations and expiration of applicable statutes of limitations		$ 234

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 reported income tax expense (benefit) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to cross-border tax law classified as other.

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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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