Income Taxes - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2017	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2011	Dec. 31, 2016
Income Taxes [Line Items]
Decrease in income tax payable attributable to exercise or settlement of stock-based awards			$ (24,000,000)	$ (15,000,000)	$ (27,000,000)
Valuation allowance on deferred tax assets			72,000,000	$ 57,000,000
Increase related to additional foreign net operating losses			15,000,000
Income tax expense at federal statutory rate				21.00%	35.00%
Transition tax					$ 67,000,000
Income tax expense recorded due to remeasurement of net deferred tax assets					6,000,000
Tax cuts and jobs act, income tax benefit			3,000,000
Foreign earnings not considered to be indefinitely reinvested			501,000,000
Deferred tax liability on cumulative undistributed foreign earnings that are not indefinitely reinvested			1,000,000
Foreign earnings intended to indefinitely reinvest in non-US subsidiaries			118,000,000
Cumulative income tax expense recorded upon non-company related litigation		$ 15,000,000
Unrecognized tax benefits			140,000,000	$ 136,000,000	$ 123,000,000		$ 105,000,000
Unrecognized tax benefits that would impact effective tax rate			82,000,000
Total gross interest and penalties accrued			29,000,000	$ 20,000,000
Minimum | Expedia | IRS | Tax Years 2009 through 2013
Income Taxes [Line Items]
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated	$ 35,000,000
Maximum
Income Taxes [Line Items]
Anticipated decrease in unrecognized tax benefits within next twelve months			$ 12,000,000
Maximum | Expedia | IRS | Tax Years 2009 through 2013
Income Taxes [Line Items]
Increase in income tax expense due to proposed adjustments related to transfer pricing with foreign subsidiary, estimated	$ 40,000,000
Singapore
Income Taxes [Line Items]
Singapore's effective tax rate						5.00%
Income tax expense at federal statutory rate						17.00%
Tax incentive agreement expiration date			Jun. 30, 2021
Decrease to the 2018 provision for income tax expense			$ 2,000,000
Federal
Income Taxes [Line Items]
Operating loss carryforwards			$ 4,000,000
Expiration date of NOLs			between 2020 and 2037
State
Income Taxes [Line Items]
Operating loss carryforwards			$ 32,000,000
Expiration date of NOLs			between 2020 and 2037
Foreign
Income Taxes [Line Items]
Operating loss carryforwards			$ 201,000,000
Expiration date of NOLs			between 2020 and 2028