Pensions and Other Postretirement Benefits (Net Periodic Benefit Costs) (Details) - Pension and other postretirement benefits - USD ($) $ in Millions |
3 Months Ended | |
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Mar. 31, 2025 |
Mar. 31, 2024 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Service cost | $ 7.5 | $ 7.9 |
| Interest cost | 16.2 | 16.6 |
| Expected return on plan assets | (16.8) | (16.9) |
| Amortization of prior service costs | 0.0 | 0.5 |
| Net periodic benefit cost | $ 4.0 | $ 3.8 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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