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DEFERRED CONTRIBUTION PLANS Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
May 31, 2023
May 31, 2022
May 31, 2021
Defined Contribution Plan Disclosure [Line Items]      
Defined contribution plan expense $ 470 $ 412 $ 380
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 $ 198 $ 164 $ 150