Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Mar. 31, 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	12.4	13.2
Swap valuation adjustments	12.4	19.8
Unamortized debt issuance costs	(36.7)	(38.7)
Total long-term debt, net, including current maturities	4,778.8	4,784.7
Current maturities of long-term debt	1.4	1.4
Total long-term debt, net	4,777.4	4,783.3
Unamortized discounts	$ 9.4	$ 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	$ 499.1	$ 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	$ 994.3	$ 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