v3.26.3
Fair Value Measurements - Debt Instruments (Details) - USD ($)
$ in Millions
May 14, 2026
Sep. 30, 2026
May 31, 2026
Dec. 31, 2025
May 12, 2025
Debt Instrument [Line Items]          
Fair Value   $ 6,710.7   $ 5,678.1  
Carrying Value   7,692.0   6,286.8  
Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   399.9   0.0  
Current portion of term loan   400.0   0.0  
Debt instrument, face amount         $ 1,750.0
2026 Term Loan two-year tranche          
Debt Instrument [Line Items]          
Fair Value       0.0  
Debt instrument, face amount   1,400.0 $ 2,000.0    
Proceeds from issuance of debt $ 2,000.0        
2026 Term Loan two-year tranche | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   999.7      
Carrying Value   $ 1,000.0   0.0  
2.250% Senior Notes due May 1, 2030          
Debt Instrument [Line Items]          
Fair Value       1,378.7  
Debt instrument, interest rate, stated percentage   2.25%      
2.250% Senior Notes due May 1, 2030 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 1,335.7      
Carrying Value   $ 1,496.4   1,495.7  
5.050% Senior Notes due January 15, 2031          
Debt Instrument [Line Items]          
Fair Value       413.0  
Debt instrument, interest rate, stated percentage   5.05%      
5.050% Senior Notes due January 15, 2031 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 391.3      
Carrying Value   $ 398.2   398.0  
Debt instrument, interest rate, stated percentage         5.05%
Debt instrument, face amount         $ 400.0
5.750% Senior Notes due May 15, 2035          
Debt Instrument [Line Items]          
Fair Value       684.5  
Debt instrument, interest rate, stated percentage   5.75%      
5.750% Senior Notes due May 15, 2035 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 638.4      
Carrying Value   $ 645.8   645.5  
Debt instrument, interest rate, stated percentage         5.75%
Debt instrument, face amount         $ 650.0
5.200% Senior Notes due September 15, 2045          
Debt Instrument [Line Items]          
Fair Value       1,029.5  
Debt instrument, interest rate, stated percentage   5.20%      
5.200% Senior Notes due September 15, 2045 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 952.1      
Carrying Value   $ 1,101.8   1,101.5  
3.150% Senior Notes due May 1, 2050          
Debt Instrument [Line Items]          
Fair Value       973.0  
Debt instrument, interest rate, stated percentage   3.15%      
3.150% Senior Notes due May 1, 2050 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 887.1      
Carrying Value   $ 1,476.1   1,475.6  
3.250% Senior Notes due February 15, 2051          
Debt Instrument [Line Items]          
Fair Value       461.8  
Debt instrument, interest rate, stated percentage   3.25%      
3.250% Senior Notes due February 15, 2051 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 420.2      
Carrying Value   $ 483.4   480.3  
6.450% Senior Notes due May 15, 2055          
Debt Instrument [Line Items]          
Fair Value       737.6  
Debt instrument, interest rate, stated percentage   6.45%      
6.450% Senior Notes due May 15, 2055 | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   $ 686.3      
Carrying Value   690.3   690.2  
Debt instrument, interest rate, stated percentage         6.45%
Debt instrument, face amount         $ 700.0
Non-current portion of notes payable | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   6,310.8   5,678.1  
Carrying Value   7,292.0   6,286.8  
Floating Rate 364-Day Tranche          
Debt Instrument [Line Items]          
Debt instrument, face amount   400.0      
Proceeds from issuance of debt 1,000.0        
Floating Rate Two-Year Tranche          
Debt Instrument [Line Items]          
Debt instrument, face amount   1,000.0      
Proceeds from issuance of debt $ 1,000.0        
The Credit Facility Floating Rate Three-Year Tranche | Senior secured term loan          
Debt Instrument [Line Items]          
Fair Value   399.9   0.0  
Current portion of term loan   $ 400.0   $ 0.0