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Debt - Schedule of Long-Term Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Debt issuance cost $ (23.5) $ (24.5)
Total long-term debt 3,118.3 3,120.1
Less: debt maturing within one year 93.7 96.5
Total long-term debt, less current portion 3,024.6 3,023.6
Pollution Control and Industrial Revenue Bonds    
Debt Instrument [Line Items]    
Unamortized discount 0.1 0.1
Long-term debt, gross $ 49.9 49.9
Pollution Control and Industrial Revenue Bonds | Minimum    
Debt Instrument [Line Items]    
Interest Rate Percentage 6.45%  
Senior Notes    
Debt Instrument [Line Items]    
Unamortized discount $ 1.8 1.8
Long-term debt, gross $ 2,998.2 2,998.2
Senior Notes | Minimum    
Debt Instrument [Line Items]    
Interest Rate Percentage 3.20%  
Senior Notes | Maximum    
Debt Instrument [Line Items]    
Interest Rate Percentage 6.40%  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Letters of credit outstanding amount $ 251.2  
Credit agreement, available funds $ 639.6  
Revolving Credit Facility | Line of Credit    
Debt Instrument [Line Items]    
Interest Rate Percentage 8.00%  
Long-term debt, gross $ 0.0 0.0
Foreign debt    
Debt Instrument [Line Items]    
Long-term debt, gross $ 93.7 $ 96.5
Foreign debt | Minimum    
Debt Instrument [Line Items]    
Interest Rate Percentage 14.60%  
Foreign debt | Maximum    
Debt Instrument [Line Items]    
Interest Rate Percentage 17.40%