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STOCK-BASED COMPENSATION - Restricted Stock and Restricted Stock Units (Details) - Restricted stock and restricted stock units - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average grant date fair value (in dollars per share) $ 106,850,000 $ 127,160,000
Unrecognized compensation costs from restricted stock, net of estimated forfeitures $ 676  
Unrecognized compensation costs from stock options, net of estimated forfeitures, to be recognized as operating overhead expense over a weighted average period 2 years 3 months 18 days