Stock-Based Compensation - Expedia Holdings Option Activity (Details) $ / shares in Units, $ in Millions		3 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares
Number of shares
Options outstanding, ending balances	659,000	659,000
Weighted average exercise price
Weighted average exercise price, ending balances | $ / shares	$ 38.48	$ 38.48
Common Series A
Number of shares
Options outstanding, beginning balances		1,317,000
Exercised (in shares)		(210,000)
Forfeited/Cancelled (in shares)		(7,000)
Options outstanding, ending balances	1,100,000	1,100,000
Options Exercisable	839,000	839,000
Weighted average exercise price
Weighted average exercise price, beginning balances | $ / shares		$ 24.46
Exercised (in dollars per share) | $ / shares		18.44
Forfeited/Cancelled (in dollars per share) | $ / shares		40.51
Weighted average exercise price, ending balances | $ / shares	$ 25.51	25.51
Exercisable (in dollars per share) | $ / shares	$ 20.74	$ 20.74
Additional disclosures
Outstanding Weighted Average Remaining contractual term	3 years 3 months 18 days
Exercisable Weighted Average Remaining contractual term	2 years 6 months
Outstanding Aggregate Intrinsic Value | $	$ 22	$ 22
Exercisable Aggregate Intrinsic Value | $	$ 21	$ 21
Common Series B
Number of shares
Options outstanding, beginning balances		659,000
Options Exercisable	123,000	123,000
Weighted average exercise price
Weighted average exercise price, beginning balances | $ / shares		$ 38.48
Exercisable (in dollars per share) | $ / shares	$ 40.46	$ 40.46
Additional disclosures
Outstanding Weighted Average Remaining contractual term	4 years 10 months 24 days
Exercisable Weighted Average Remaining contractual term	5 years 8 months 12 days
Outstanding Aggregate Intrinsic Value | $	$ 2	$ 2
2016 Plan | Common Series A | Expedia
Number of shares
Granted (in shares)		0
2016 Plan | Common Series B | Expedia
Number of shares
Granted (in shares)		0