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Pension and Employee Benefit Plans, Valuation Assumptions (Details) - U.S. Pension Plans | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
U.S. Plans |  |  |
Assumptions Used in Pension Plan Calculations [Abstract] |  |  |
Weighted average discount rate used to determine benefit obligations | 5.50% | 5.40% |
Weighted average discount rate used to determine costs | 5.40% | 5.20% | 3.90%
Non-U.S Plans |  |  |
Assumptions Used in Pension Plan Calculations [Abstract] |  |  |
Weighted average discount rate used to determine benefit obligations | 4.00% | 3.70% |
Weighted average discount rate used to determine costs | 3.90% | 4.00% | 2.90%

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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