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Long-Term Debt - Summary of Extinguished Portion of Certain Series of Outstanding Notes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished	$ 273	$ 402	$ 645
Senior Notes | 6.875% Senior Notes due 2028
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished	130		11
Senior Secured Notes | 5⅝% Senior Secured Notes due 2027
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished	$ 143
Senior Secured Notes | 6% Senior Secured Notes due 2029
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished		256
Senior Secured Notes | Senior Secured Notes at 4.750% Due 2031
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished			37
Junior-Priority Secured Notes | Junior-Priority Secured Notes at 6.875% Due 2029
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished		142	389
Junior-Priority Secured Notes | Junior-Priority Secured Notes at 6.125% Due 2030
Extinguishment Of Debt [Line Items]
Total principal amount of debt extinguished		$ 4	$ 208

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