Income Taxes - Schedule of Net Deferred Tax Liability (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss carryforwards	$ 9	$ 8
Deferred income	4	3
Accrued compensation	2	3
Other	6	4
Total gross deferred tax assets	21	18
Less: valuation allowance	(6)	(4)
Deferred tax assets	15	14
Deferred tax liabilities:
Property and equipment	(48)	(44)
Investments	(8)	(9)
Accrued compensation	(1)
Deferred tax liabilities	(57)	(53)
Net deferred tax liability	$ (42)	$ (39)