Pensions and Other Benefit Plans - Retirement Plan Target and Actual Asset Allocations (Details)	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Target	100.00%
Actual	100.00%	100.00%
Equity securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Actual	8.00%	22.00%
Fixed income securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Actual	92.00%	78.00%
Minimum \| Equity securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Target	18.00%
Minimum \| Fixed income securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Target	92.00%
Maximum \| Equity securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Target	8.00%
Maximum \| Fixed income securities \| Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Target	82.00%

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-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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- 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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