DEFERRED CONTRIBUTION PLANS Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan expense	$ 412	$ 380	$ 376
US [Member]
Defined Contribution Plan Disclosure [Line Items]
Oracle 401(K) Plan employee contribution maximum rate	40.00%
Oracle 401 (K) employer contribution match rate	50.00%
Oracle 401(K) employer maximum match on employee contribution each pay period	6.00%
Oracle 401 (K) plan employer contribution	$ 164	$ 150	$ 152