Income Taxes - Schedule of Net Deferred Tax Liability (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 53	$ 51
Deferred income	4	5
Accrued compensation	2	2
Other	7	7
Total gross deferred tax assets	66	65
Less: valuation allowance	(59)	(55)
Deferred tax assets	7	10
Deferred tax liabilities:
Property and equipment	(3)	(4)
Investments	(9)	(9)
Accrued compensation	(4)	(5)
Deferred tax liabilities	(16)	(18)
Net deferred tax liability	$ (9)	$ (8)