FAIR VALUE MEASUREMENTS - Financial Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	May 31, 2025	May 31, 2024
Assets, Fair Value Disclosure [Abstract]
SHORT-TERM INVESTMENTS	$ 1,687	$ 1,722
Fair Value, Measurements, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash	1,221	1,222
ASSETS AT FAIR VALUE	9,151	11,582
CASH AND EQUIVALENTS	7,464	9,860
SHORT-TERM INVESTMENTS	1,687	1,722
Fair Value, Measurements, Recurring \| Level 1 \| U.S. Treasury securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	1,046	1,175
CASH AND EQUIVALENTS	0	155
SHORT-TERM INVESTMENTS	1,046	1,020
Fair Value, Measurements, Recurring \| Level 2
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	6,884	9,185
CASH AND EQUIVALENTS	6,243	8,483
SHORT-TERM INVESTMENTS	641	702
Fair Value, Measurements, Recurring \| Level 2 \| Commercial paper and bonds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	675	591
CASH AND EQUIVALENTS	45	17
SHORT-TERM INVESTMENTS	630	574
Fair Value, Measurements, Recurring \| Level 2 \| Money market funds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	5,902	8,119
CASH AND EQUIVALENTS	5,902	8,119
SHORT-TERM INVESTMENTS	0	0
Fair Value, Measurements, Recurring \| Level 2 \| Time deposits
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	297	440
CASH AND EQUIVALENTS	295	347
SHORT-TERM INVESTMENTS	2	93
Fair Value, Measurements, Recurring \| Level 2 \| U.S. Agency securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	10	35
CASH AND EQUIVALENTS	1	0
SHORT-TERM INVESTMENTS	$ 9	$ 35

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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