v3.26.1
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
May 10, 2024
Aug. 14, 2023
Debt Instrument [Line Items]        
Short-term borrowings $ 0.0 $ 0.0    
Long-term debt:        
Finance leases and other long-term debt 12.0 13.2    
Swap valuation adjustments 0.1 19.8    
Unamortized debt issuance costs (34.6) (38.7)    
Total long-term debt, net, including current maturities 4,768.5 4,784.7    
Current maturities of long-term debt 699.8 1.4    
Total long-term debt, net 4,068.7 4,783.3    
Unamortized discounts $ 9.0 $ 9.7    
Senior Notes | 5.197% Senior Notes due 2027        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.197% 5.197% 5.197%  
Long-term debt $ 700.0 $ 700.0    
Senior Notes | 5.40% Senior Notes due 2028        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.40% 5.40%   5.40%
Long-term debt $ 499.2 $ 499.0    
Senior Notes | 5.176% Senior Notes due 2029        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.176% 5.176% 5.176%  
Long-term debt $ 750.0 $ 750.0    
Senior Notes | 5.314% Senior Notes due 2031        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.314% 5.314% 5.314%  
Long-term debt $ 500.0 $ 500.0    
Senior Notes | 5.70% Senior Notes due 2033        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.70% 5.70%   5.70%
Long-term debt $ 994.5 $ 994.1    
Senior Notes | 5.450% Senior Notes due 2034        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.45% 5.45% 5.45%  
Long-term debt $ 749.6 $ 749.6    
Senior Notes | 5.700% Senior Notes due 2054        
Long-term debt:        
Stated interest rate of debt instrument (as percent) 5.70% 5.70% 5.70%  
Long-term debt $ 597.7 $ 597.7