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Pension and Postretirement Benefits (Estimated Future Benefit Payments) (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2025 $ 3.5
2026 3.0
2027 3.2
2028 3.4
2029 3.4
2030 to 2034 18.8
Total payments 35.3
Postretirement Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2025 1.3
2026 1.2
2027 1.1
2028 1.1
2029 1.1
2030 to 2034 4.5
Total payments $ 10.3