Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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-Topic 715
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- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Pension and Employee Benefit Plans, Weighted-average Asset Allocations (Details) - Pension Plans [Member] - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Weighted Average Asset Allocations [Abstract]
Target allocation		100.00%	100.00%
Plan assets		100.00%	100.00%
Debt Securities [Member]
Weighted Average Asset Allocations [Abstract]
Target allocation		80.00%	18.00%
Plan assets		72.00%	15.00%
Equity Securities [Member]
Weighted Average Asset Allocations [Abstract]
Target allocation		19.00%	76.00%
Plan assets		18.00%	76.00%
Cash and Cash Equivalents [Member]
Weighted Average Asset Allocations [Abstract]
Target allocation		1.00%	1.00%
Plan assets		5.00%	1.00%
Real Estate Investments [Member]
Weighted Average Asset Allocations [Abstract]
Target allocation		0.00%	5.00%
Plan assets		5.00%	8.00%
U.S. Plans [Member]
Weighted Average Asset Allocations [Abstract]
Expected return on plan assets		6.50%	7.00%	7.50%
Expected contribution in fiscal 2025		$ 8.0
U.S. Plans [Member] \| Forecast [Member]
Weighted Average Asset Allocations [Abstract]
Expected return on plan assets	5.50%