FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Fair Value and Carrying Value of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Senior Notes | Senior Notes due 2036 at 4.850% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, interest rate, stated percentage	4.85%
Senior Notes | Senior Notes due 2046 at 5.650% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, interest rate, stated percentage	5.65%
Senior Notes | Senior Notes due 2056 at 5.800% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, interest rate, stated percentage	5.80%
Senior Notes | Senior Notes due 2066 at 5.950% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, interest rate, stated percentage	5.95%
Fair Value | Revolving Credit Facility | Term Loan due 2032
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	$ 0.0	$ 2,089.1
Fair Value | Revolving Credit Facility | Senior Secured Notes due 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	834.8	840.9
Fair Value | Revolving Credit Facility | Senior Notes due 2036 at 4.850% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	583.8	0.0
Fair Value | Revolving Credit Facility | Senior Notes due 2046 at 5.650% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	477.1	0.0
Fair Value | Revolving Credit Facility | Senior Notes due 2056 at 5.800% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	481.0	0.0
Fair Value | Revolving Credit Facility | Senior Notes due 2066 at 5.950% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	478.7	0.0
Par Value | Revolving Credit Facility | Term Loan due 2032
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	0.0	2,076.1
Par Value | Revolving Credit Facility | Senior Secured Notes due 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	850.0	850.0
Par Value | Revolving Credit Facility | Senior Notes due 2036 at 4.850% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	600.0	0.0
Par Value | Revolving Credit Facility | Senior Notes due 2046 at 5.650% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	500.0	0.0
Par Value | Revolving Credit Facility | Senior Notes due 2056 at 5.800% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	500.0	0.0
Par Value | Revolving Credit Facility | Senior Notes due 2066 at 5.950% at March 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value disclosure	$ 500.0	$ 0.0