Income Taxes - Schedule of Effects of Temporary Differences and Carryforwards of Our Net Deferred Tax Liability (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Compensation	$ 16	$ 12
Domestic tax loss and credit carryforwards	5	4
Foreign tax loss carryforwards	2	1
Other reserves	89	86
Deferred tax assets, Gross	112	103
Valuation allowance	(4)	(4)
Deferred tax assets	108	99
Deferred tax liabilities:
Property and equipment	(70)	(87)
Amortizable intangible assets	(7)	(9)
Deferred income	(164)	(259)
Other liabilities		(1)
Deferred tax liabilities	(241)	(356)
Net deferred taxes	$ (133)	$ (257)