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Pension and Other Benefit Plans - Asset Allocations (Details)	Mar. 31, 2025	Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Total	100.00%	100.00%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Total	10.00%	9.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Total	52.00%	55.00%
Alternatives
Defined Benefit Plan Disclosure [Line Items]
Total	35.00%	29.00%
Cash and other
Defined Benefit Plan Disclosure [Line Items]
Total	3.00%	7.00%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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