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Property, Plant and Equipment - Asset Retirement Obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Asset Retirement Obligation [Roll Forward]    
Beginning obligation $ 202.9 $ 200.4
Accretion 13.1 10.3
Liabilities Recognized 47.7  
Liabilities Settled (16.0) (10.2)
Revisions in Estimated Cash Flows 13.6 2.4
Ending obligation $ 261.3 $ 202.9