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Discontinued Operations - Reserves for Discontinued Operations (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Workers’ compensation, product liability, and indemnification reserves $ 2.6 $ 2.3
Reserve for discontinued operations 154.2 135.6
Non-operating pension and postretirement charges (income); Discontinued operations, net of income taxes    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Workers’ compensation, product liability, and indemnification reserves 7.1 7.3
Postretirement medical and life insurance benefits reserve, net 3.1 4.4
Reserves for legal proceedings 144.0 123.9
Reserve for discontinued operations $ 154.2 $ 135.6