FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Aug. 31, 2023	May 31, 2023
Assets, Fair Value Disclosure [Abstract]
SHORT-TERM INVESTMENTS	$ 2,612	$ 3,234
Fair Value, Measurements, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash	1,432	1,767
ASSETS AT FAIR VALUE	8,790	10,675
CASH AND EQUIVALENTS	6,178	7,441
SHORT-TERM INVESTMENTS	2,612	3,234
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | U.S. Treasury securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	2,022	2,655
CASH AND EQUIVALENTS	4	0
SHORT-TERM INVESTMENTS	2,018	2,655
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	5,336	6,253
CASH AND EQUIVALENTS	4,742	5,674
SHORT-TERM INVESTMENTS	594	579
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commercial paper and bonds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	549	543
CASH AND EQUIVALENTS	13	15
SHORT-TERM INVESTMENTS	536	528
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Money market funds
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	4,154	5,157
CASH AND EQUIVALENTS	4,154	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	581	507
CASH AND EQUIVALENTS	575	502
SHORT-TERM INVESTMENTS	6	5
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | U.S. Agency securities
Assets, Fair Value Disclosure [Abstract]
ASSETS AT FAIR VALUE	52	46
CASH AND EQUIVALENTS	0	0
SHORT-TERM INVESTMENTS	$ 52	$ 46