FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Nov. 30, 2023	May 31, 2023
Assets, Fair Value Disclosure [Abstract]
SHORT-TERM INVESTMENTS	$ 2,008	$ 3,234
Fair Value, Measurements, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash	1,603	1,767
ASSETS AT FAIR VALUE	9,927	10,675
CASH AND EQUIVALENTS	7,919	7,441
SHORT-TERM INVESTMENTS	2,008	3,234
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. Treasury securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	1,420	2,655
CASH AND EQUIVALENTS	0	0
SHORT-TERM INVESTMENTS	1,420	2,655
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	6,904	6,253
CASH AND EQUIVALENTS	6,316	5,674
SHORT-TERM INVESTMENTS	588	579
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commercial paper and bonds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	550	543
CASH AND EQUIVALENTS	18	15
SHORT-TERM INVESTMENTS	532	528
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Money market funds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	5,653	5,157
CASH AND EQUIVALENTS	5,653	5,157
SHORT-TERM INVESTMENTS	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Time deposits
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	652	507
CASH AND EQUIVALENTS	645	502
SHORT-TERM INVESTMENTS	7	5
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S. Agency securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	49	46
CASH AND EQUIVALENTS	0	0
SHORT-TERM INVESTMENTS	$ 49	$ 46