Segment and Geographic Information - Summary of Total Revenue by Source (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Total revenue	$ 316	$ 421	$ 391		$ 352		$ 309	$ 415	$ 405		$ 363		$ 1,480	$ 1,492	$ 1,246
Hotel Segment | TripAdvisor-Branded Click-Based and Transaction
Revenue from External Customer [Line Items]
Total revenue													750	837	764
Hotel Segment | TripAdvisor-Branded Display-Based Advertising and Subscription
Revenue from External Customer [Line Items]
Total revenue													282	272	233
Hotel Segment | Other Hotel Revenue
Revenue from External Customer [Line Items]
Total revenue													158	154	138
Non-Hotel Segment
Revenue from External Customer [Line Items]
Total revenue													$ 290	$ 229	$ 111

[1] In the third quarter of 2016, the Company early adopted ASU 2016-09, Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. Refer to “Note 2 – Significant Accounting Policies” for the impact of the adoption of this guidance on the first and second quarters of 2016.