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Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2024
May 31, 2024
May 10, 2024
Dec. 31, 2023
Debt [Abstract]        
Short-term borrowings $ 1.5     $ 1.0
Long-term debt:        
Finance leases and other long-term debt 14.5     15.2
Swap valuation adjustments 29.7     0.0
Unamortized debt issuance costs (49.0)     (23.4)
Total long-term debt, net, including current maturities 4,783.9     2,722.6
Current maturities of long-term debt 1.4     29.6
Total long-term debt, net 4,782.5     2,693.0
Unamortized discounts 11.3     9.9
Dollar Term Loan B, due 2027        
Long-term debt:        
Long-term debt, gross 0.0     347.7
Weighted-average interest rate of debt instrument (as percent)   7.18%    
Dollar Term Loan, Due 2027        
Long-term debt:        
Long-term debt, gross 0.0     892.3
Weighted-average interest rate of debt instrument (as percent)   7.18%    
5.197% Senior Notes Due 2027 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 699.9     $ 0.0
Stated interest rate of debt instrument (as percent) 5.197%   5.197% 5.197%
5.40% Senior Notes due 2028 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 498.5     $ 498.2
Stated interest rate of debt instrument (as percent) 5.40%     5.40%
5.176% Senior Notes Due 2029 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 750.0     $ 0.0
Stated interest rate of debt instrument (as percent) 5.176%   5.176% 5.176%
5.314% Senior Notes Due 2031 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 500.0     $ 0.0
Stated interest rate of debt instrument (as percent) 5.314%   5.314% 5.314%
5.70% Senior Notes due 2033 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 993.2     $ 992.6
Stated interest rate of debt instrument (as percent) 5.70%     5.70%
5.450% Senior Notes Due 2034 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 749.5     $ 0.0
Stated interest rate of debt instrument (as percent) 5.45%   5.45% 5.45%
5.700% Senior Notes Due 2054 | Senior Notes        
Long-term debt:        
Long-term debt, gross $ 597.6     $ 0.0
Stated interest rate of debt instrument (as percent) 5.70%   5.70% 5.70%