Stock-Based Compensation - Expedia Holdings Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	2 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares
2005 Expedia Stock and Annual Incentive Plan | Expedia
Number of shares
Granted (in shares) | shares	63
Exercised (in shares) | shares	(207)
Forfeited/Cancelled (in shares) | shares	96
Options outstanding, ending balances | shares	18,841	18,841
Options Exercisable | shares	5,770	5,770
Weighted average exercise price
Granted (in dollars per share)	$ 126.58
Exercised (in dollars per share)	52.41
Forfeited/Cancelled (in dollars per share)	95.21
Weighted average exercise price, ending balances	84.07	$ 84.07
Exercisable (in dollars per share)	$ 58.27	$ 58.27
Additional disclosures
Outstanding Weighted Average Remaining contractual term		4 years 8 months 12 days
Exercisable Weighted Average Remaining contractual term		3 years 1 month 6 days
Outstanding Aggregate Intrinsic Value | $	$ 552	$ 552
Exercisable Aggregate Intrinsic Value | $	$ 318	$ 318
Weighted average grant date fair value of options granted	$ 34.59
2016 Plan | Common Series A
Number of shares
Expedia Holdings Split-Off adjustment(in shares) | shares		1,330
Granted (in shares) | shares		6
Exercised (in shares) | shares		(19)
Options outstanding, ending balances | shares	1,317	1,317
Options Exercisable | shares	1,022	1,022
Weighted average exercise price
Expedia Holdings Split-Off adjustment (in dollars per share)		$ 24.34
Granted (in dollars per share)		41.40
Exercised (in dollars per share)		21.59
Weighted average exercise price, ending balances	$ 24.46	24.46
Exercisable (in dollars per share)	$ 19.77	$ 19.77
Additional disclosures
Outstanding Weighted Average Remaining contractual term		3 years 4 months 24 days
Exercisable Weighted Average Remaining contractual term		2 years 6 months
Outstanding Aggregate Intrinsic Value | $	$ 21	$ 21
Exercisable Aggregate Intrinsic Value | $	$ 20	$ 20
2016 Plan | Common Series B
Number of shares
Expedia Holdings Split-Off adjustment(in shares) | shares		659
Options outstanding, ending balances | shares	659	659
Options Exercisable | shares	123	123
Weighted average exercise price
Expedia Holdings Split-Off adjustment (in dollars per share)		$ 38.48
Weighted average exercise price, ending balances	$ 38.48	38.48
Exercisable (in dollars per share)	$ 40.46	$ 40.46
Additional disclosures
Outstanding Weighted Average Remaining contractual term		5 years 2 months 12 days
Exercisable Weighted Average Remaining contractual term		5 years 10 months 24 days
Outstanding Aggregate Intrinsic Value | $	$ 2	$ 2