FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Aug. 31, 2025	May 31, 2025
Assets, Fair Value Disclosure [Abstract]
SHORT-TERM INVESTMENTS	$ 1,551	$ 1,687
Fair Value, Measurements, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash	1,409	1,221
ASSETS AT FAIR VALUE	8,575	9,151
CASH AND EQUIVALENTS	7,024	7,464
SHORT-TERM INVESTMENTS	1,551	1,687
Fair Value, Measurements, Recurring \| Level 1 \| U.S. Treasury securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	897	1,046
CASH AND EQUIVALENTS	0	0
SHORT-TERM INVESTMENTS	897	1,046
Fair Value, Measurements, Recurring \| Level 2
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	6,269	6,884
CASH AND EQUIVALENTS	5,615	6,243
SHORT-TERM INVESTMENTS	654	641
Fair Value, Measurements, Recurring \| Level 2 \| Commercial paper and bonds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	672	675
CASH AND EQUIVALENTS	35	45
SHORT-TERM INVESTMENTS	637	630
Fair Value, Measurements, Recurring \| Level 2 \| Money market funds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	5,309	5,902
CASH AND EQUIVALENTS	5,309	5,902
SHORT-TERM INVESTMENTS	0	0
Fair Value, Measurements, Recurring \| Level 2 \| Time deposits
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	271	297
CASH AND EQUIVALENTS	271	295
SHORT-TERM INVESTMENTS	0	2
Fair Value, Measurements, Recurring \| Level 2 \| U.S. Agency securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	17	10
CASH AND EQUIVALENTS	0	1
SHORT-TERM INVESTMENTS	$ 17	$ 9

Fair value portion of asset recognized for present right to economic benefit.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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