COMMON STOCK AND STOCK-BASED COMPENSATION - Weighted Average Assumptions Used to Estimate Fair Values (Details) - Stock options	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.20%	0.90%	0.80%
Expected volatility	29.30%	27.10%	24.90%
Weighted average expected life (in years)	5 years 9 months 18 days	5 years 9 months 18 days	5 years 9 months 18 days
Risk-free interest rate	4.30%	3.30%	0.90%