Pension Benefits - Schedule of Weighted-Average Assumptions Used to Estimate Net Periodic Pension Expense and Actuarial Present Value of Benefit Obligations (Details) - Pension Plans, Defined Benefit	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
UNITED STATES
Net periodic pension expense
Discount rates	3.08%	3.66%	3.83%
Expected long-term rate of return on plan assets		4.00%	5.25%
Benefit obligation
Discount rates	2.35%	3.08%	3.65%
Non-U.S. Plans
Net periodic pension expense
Discount rates	1.89%	2.03%	2.35%
Rate of increase in compensation	3.20%	2.93%	3.13%
Expected long-term rate of return on plan assets	2.56%	3.01%	3.71%
Benefit obligation
Discount rates	1.89%	2.03%	2.13%
Rate of increase in compensation	3.20%	2.93%	3.18%