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Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2024
May 31, 2024
May 10, 2024
Dec. 31, 2023
Aug. 14, 2023
Debt [Abstract]          
Short-term borrowings $ 1.7     $ 1.0  
Long-term debt:          
Finance leases and other long-term debt 14.1     15.2  
Swap valuation adjustments (0.3)     0.0  
Unamortized debt issuance costs (47.0)     (23.4)  
Total long-term debt, net, including current maturities 4,755.8     2,722.6  
Current maturities of long-term debt 1.4     29.6  
Total long-term debt, net 4,754.4     2,693.0  
Original issue discounts 11.0     9.9  
Dollar Term Loan B, due 2027          
Long-term debt:          
Long-term debt 0.0     347.7  
Weighted-average interest rate of debt instrument (as a percent)   7.18%      
Dollar Term Loan, due 2027          
Long-term debt:          
Long-term debt 0.0     892.3  
Weighted-average interest rate of debt instrument (as a percent)   7.18%      
5.197% Senior Notes Due 2027 | Senior Notes          
Long-term debt:          
Long-term debt $ 699.9     $ 0.0  
Stated interest rate of debt instrument (as a percent) 5.197%   5.197% 5.197%  
5.400% Senior Notes Due 2028 | Senior Notes          
Long-term debt:          
Long-term debt $ 498.6     $ 498.2  
Stated interest rate of debt instrument (as a percent) 5.40%     5.40%  
5.176% Senior Notes Due 2029 | Senior Notes          
Long-term debt:          
Long-term debt $ 750.0     $ 0.0  
Stated interest rate of debt instrument (as a percent) 5.176%   5.176% 5.176%  
5.314% Senior Notes Due 2031 | Senior Notes          
Long-term debt:          
Long-term debt $ 500.0     $ 0.0  
Stated interest rate of debt instrument (as a percent) 5.314%   5.314% 5.314%  
5.700% Senior Notes Due 2033 | Senior Notes          
Long-term debt:          
Long-term debt $ 993.4     $ 992.6  
Stated interest rate of debt instrument (as a percent) 5.70%       5.70%
5.450% Senior Notes Due 2034 | Senior Notes          
Long-term debt:          
Long-term debt $ 749.5     $ 0.0  
Stated interest rate of debt instrument (as a percent) 5.45%   5.45% 5.45%  
5.700% Senior Notes Due 2054 | Senior Notes          
Long-term debt:          
Long-term debt $ 597.6     $ 0.0  
Stated interest rate of debt instrument (as a percent) 5.70%   5.70% 5.70%