Long-Term Debt - Outstanding Debt (Details) - USD ($) $ in Millions		Sep. 30, 2025	Sep. 24, 2025	May 15, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Face Value		$ 4,988
Unamortized debt discount/premium and deferred financing costs, net		46
Book Value		4,942			$ 3,870
Less: current portion of long-term debt		(49)			(23)
Long-term debt, excluding current portion		4,893			3,847
Fair value of debt(1)	[1]	5,029
Secured Debt | Revolving Credit Facility | LNWI Revolver
Debt Instrument [Line Items]
Face Value		0
Unamortized debt discount/premium and deferred financing costs, net		0
Book Value		0			0
Secured Debt | Secured Debt | LNWI Term Loan A
Debt Instrument [Line Items]
Face Value		795		$ 800
Unamortized debt discount/premium and deferred financing costs, net		(2)
Book Value		793			0
Secured Debt | Secured Debt | LNWI Term Loan B
Debt Instrument [Line Items]
Face Value		2,140
Unamortized debt discount/premium and deferred financing costs, net		(20)
Book Value		$ 2,120			2,133
Senior Notes | Senior Unsecured Notes, Maturing 2028 [Member]
Debt Instrument [Line Items]
Rate(s)		7.00%
Face Value		$ 0
Unamortized debt discount/premium and deferred financing costs, net		0
Book Value		$ 0			695
Senior Notes | 2029 Unsecured Notes
Debt Instrument [Line Items]
Rate(s)		7.25%
Face Value		$ 500
Unamortized debt discount/premium and deferred financing costs, net		3
Book Value		$ 497			496
Senior Notes | 2031 Unsecured Notes
Debt Instrument [Line Items]
Rate(s)		7.50%
Face Value		$ 550
Unamortized debt discount/premium and deferred financing costs, net		6
Book Value		$ 544			543
Senior Notes | Senior Unsecured Notes, Maturing 2033
Debt Instrument [Line Items]
Rate(s)		6.25%	6.25%
Face Value		$ 1,000	$ 1,000
Unamortized debt discount/premium and deferred financing costs, net		15
Book Value		985			0
Capital Lease Obligations | Other
Debt Instrument [Line Items]
Face Value		3
Unamortized debt discount/premium and deferred financing costs, net		0
Book Value		$ 3			$ 3

[1] (1) Fair value of our fixed rate and variable interest rate debt is classified within Level 2 in the fair value hierarchy and has been calculated based on the quoted market prices of our securities.