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Pension and Postretirement Benefit Obligations - Narrative (Details) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) | Mar. 29, 2024 USD ($) | Dec. 31, 2022 benefit_plan
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension cost (reversal of cost) | $ 112.8 |  |
Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of company-sponsored pension plans | benefit_plan |  |  | 2
Pension Plans | Bargaining Plan | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected future employer contributions, next fiscal year |  | $ 2.0 |

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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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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