Weighted-Average Assumptions used to Determine Benefit Obligations and Net Periodic Pension Cost (Detail) - Pension Benefits	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Domestic
Defined Benefit Plan Disclosure [Line Items]
Year-End Benefit Obligations, Discount rate	4.43%	2.75%
Year-End Benefit Obligations, Rate of compensation increase	3.21%	3.19%
Net Periodic Pension Cost, Discount rate	2.76%	2.78%	3.65%
Net Periodic Pension Cost, Expected return on plan assets	6.50%	7.00%	7.40%
Net Periodic Pension Cost, Rate of compensation increase	3.19%	3.19%	3.80%
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Year-End Benefit Obligations, Discount rate	4.02%	2.72%
Year-End Benefit Obligations, Rate of compensation increase	2.94%	2.91%
Net Periodic Pension Cost, Discount rate	2.72%	2.49%	2.61%
Net Periodic Pension Cost, Expected return on plan assets	3.46%	3.30%	3.91%
Net Periodic Pension Cost, Rate of compensation increase	2.91%	2.86%	2.86%