v3.26.1
Pension Plans - Weighted-Average Assumptions used to Determine Benefit Obligations and Net Periodic Pension Cost (Detail) - Pension Benefits
 12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Domestic      
Defined Benefit Plan Disclosure [Line Items]      
Year-End Benefit Obligations, Discount rate 5.55% 5.65%  
Year-End Benefit Obligations, Rate of compensation increase 3.38% 3.38%  
Net Periodic Pension Cost, Discount rate 5.66% 5.59% 5.26%
Net Periodic Pension Cost, Expected return on plan assets 7.25% 7.00% 7.00%
Net Periodic Pension Cost, Rate of compensation increase 3.38% 3.39% 3.39%
Non-U.S. Plans      
Defined Benefit Plan Disclosure [Line Items]      
Year-End Benefit Obligations, Discount rate 4.93% 4.78%  
Year-End Benefit Obligations, Rate of compensation increase 2.97% 3.03%  
Net Periodic Pension Cost, Discount rate 4.78% 4.81% 4.88%
Net Periodic Pension Cost, Expected return on plan assets 5.35% 5.49% 5.79%
Net Periodic Pension Cost, Rate of compensation increase 3.03% 2.98% 2.97%