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Pension and Postretirement Benefits (Expected Contributions to Pension and Postretirement Plans) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2024 USD ($)
Pension |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Expected contributions in 2024 | $ 2.0
Amounts contributed during the three months ended March 31, 2024 | 0.8
Postretirement |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Expected contributions in 2024 | 1.3
Amounts contributed during the three months ended March 31, 2024 | $ 1.0

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