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, 2020	Mar. 31, 2019	Mar. 31, 2018
United States
Net periodic pension expense
Discount rates	3.66%	3.83%	3.55%
Rate of increase in compensation			4.00%
Expected long-term rate of return on plan assets	4.00%	5.25%	6.25%
Benefit obligation
Discount rates	3.08%	3.65%	3.69%
Non-U.S. Plans
Net periodic pension expense
Discount rates	2.03%	2.35%	2.34%
Rate of increase in compensation	2.93%	3.13%	2.72%
Expected long-term rate of return on plan assets	3.01%	3.71%	4.03%
Benefit obligation
Discount rates	2.03%	2.13%	2.35%
Rate of increase in compensation	2.93%	3.18%	2.59%