Income Taxes, Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate (Details)	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate [Abstract]
Statutory federal tax	21.00%	21.00%	21.00%
State taxes, net of federal benefit	0.50%	(0.10%)	1.40%
Taxes on non-U.S. earnings and losses	3.70%	5.80%	3.50%
Valuation allowances	2.50%	(42.90%)	(8.80%)
Tax credits and benefits	(2.60%)	(4.50%)	(3.40%)
Compensation	0.30%	0.70%	0.60%
Tax rate or law changes	0.00%	(0.20%)	0.60%
Uncertain tax positions, net of settlements	(0.20%)	0.40%	(0.20%)
Notional interest deductions	(1.20%)	(1.70%)	(2.70%)
Dividends and taxable foreign inclusions	0.40%	0.90%	1.60%
Other	(0.50%)	(2.00%)	1.40%
Effective tax rate	23.90%	(22.60%)	15.00%