STOCK-BASED COMPENSATION (Details 3) - shares	12 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2021
Shares withheld for tax and not issued (in thousands)	178,000	62,000	9,000
Stock Option and RSU Transactions
Available shares, beginning (in thousands)	735,000	573,000	1,416,000
Additional shares reserved (in thousands)		1,414,000
Options granted (in thousands)	(110,000)	(303,000)	(297,000)
Annual RSUs granted	(674,000)	(1,044,000)	(680,000)
RSUs cancelled (in thousands)	60,000	20,000	2,000
Shares withheld for tax and not issued (in thousands)		(30,000)	18,000
Options terminated (in thousands)	16,000	105,000	455,000
Options expired (in thousands)			(341,000)
Available shares, ending (in thousands)	27,000	735,000	573,000