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Long-Term Debt and Capital Lease Obligations - Debt Table (Details) € in Millions, $ in Millions	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 USD ($)	Jun. 13, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Principal		$ 4,698
Total obligations		4,867		$ 3,795
Less portion classified as current		(538)		(7)
Total long-term debt		4,329		3,788
Expedia Holdings Margin Loan
Debt Instrument [Line Items]
total debt				350
1.0% Exchangeable Senior Debentures
Debt Instrument [Line Items]
Principal		400	$ 400
total debt		398
Expedia 7.456% Notes
Debt Instrument [Line Items]
Principal		500
total debt		519		544
Expedia 5.95% Notes
Debt Instrument [Line Items]
Principal		750
total debt		814		837
Expedia 2.5% Notes
Debt Instrument [Line Items]
Principal	€ 650	779
total debt		823		727
Expedia 4.5% Notes
Debt Instrument [Line Items]
Principal		500
total debt		520		523
Expedia 5.0% Notes
Debt Instrument [Line Items]
Principal		750
total debt		784		787
Expedia 3.8% Notes
Debt Instrument [Line Items]
Principal		1,000
total debt		990
Bodybuilding Secured Notes
Debt Instrument [Line Items]
Principal		8
total debt		8		13
Bodybuilding Revolving line of credit due 2020
Debt Instrument [Line Items]
Principal		10
total debt		10		11
Capital Lease Obligations
Debt Instrument [Line Items]
Capital lease obligations		$ 1		$ 3