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Discontinued Operations - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Net pretax actuarial gain and prior service credit $ 3.0 $ 2.2  
After-tax actuarial gain and prior service credit 1.7 1.0  
Payments of other discontinued reserves 13.5 31.6 $ 30.6
Workers’ compensation, product liability, and indemnification reserves      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Payments of other discontinued reserves 6.5 3.1 2.4
Postretirement medical and life insurance benefits reserve, net      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Payments of other discontinued reserves 0.2 0.2 0.3
Reserves for legal proceedings      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Payments of other discontinued reserves $ 6.8 $ 28.3 $ 27.9