Fair Value Measurements - Schedule of Fair Value of Hedges (Details) - Interest rate swap - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative fair value	$ 0	$ 5
Location, Statement of Financial Position, Balance [Axis]: lnw:PrepaidExpensesDepositsAndOtherCurrentAssets
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative fair value	$ 6	$ 0