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Environmental Obligations - Environmental Reserve Rollforward (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accrual for Environmental Loss Contingencies [Roll Forward]      
Total environmental reserves, net of recoveries beginning of period $ 592.1 $ 529.2 $ 503.2
Provision 116.0 152.3 104.8
Spending, net of recoveries (88.5) (92.6) (74.5)
Foreign currency translation adjustments (6.5) 3.2 (4.3)
Net change 21.0 62.9 26.0
Total environmental reserves, net of recoveries end of period $ 613.1 $ 592.1 $ 529.2
Environmental loss contingency, statement of financial position Environmental liabilities, continuing and discontinued Environmental liabilities, continuing and discontinued Environmental liabilities, continuing and discontinued