Segment and Geographic Information - Summary of Segment Information (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
Segment Reporting Information [Line Items]
Revenue		$ 316	$ 421	$ 391		$ 352		$ 309		$ 415		$ 405		$ 363		$ 1,480	$ 1,492		$ 1,246
Adjusted EBITDA	[2]															352	466	[3]	468	[3]
Depreciation																(69)	(57)		(47)
Amortization of intangible assets																(32)	(36)		(18)
Stock-based compensation																(85)	(72)		(63)
Non-cash charitable contribution	[4]																(67)
Other non-recurring expenses																	(2)
Operating income		10	66	47		42		(25)	[5]	88	[5]	79	[5]	90	[5]	166	232		340
Other income (expense), net																(15)	7		(18)
Income before income taxes																151	239		322
Provision for income taxes																(31)	(41)		(96)
Net income		$ 1	$ 55	$ 34		$ 29		$ 3		$ 74		$ 58		$ 63		120	198		226
Non-Hotel Segment
Segment Reporting Information [Line Items]
Revenue																290	229		111
Operating Segments | Hotel Segment
Segment Reporting Information [Line Items]
Revenue																1,190	1,263		1,135
Adjusted EBITDA	[2]															380	472	[3]	472	[3]
Operating Segments | Non-Hotel Segment
Segment Reporting Information [Line Items]
Revenue																290	229		111
Adjusted EBITDA	[2]															(28)	(6)	[3]	(4)	[3]
Corporate and Unallocated
Segment Reporting Information [Line Items]
Depreciation																(69)	(57)		(47)
Amortization of intangible assets																(32)	(36)		(18)
Stock-based compensation																$ (85)	(72)		$ (63)
Non-cash charitable contribution	[4]																(67)
Other non-recurring expenses																	$ (2)

[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.

[2] Includes allocated general and administrative expenses in our Hotel segment of $80 million, $85 million and $87 million; and in our Non-Hotel segment of $38 million, $28 million and $18 million for the years ended December 31, 2016, 2015 and 2014, respectively.

[3] Hotel segment Adjusted EBITDA includes charitable contributions to the Foundation which were funded in cash of $8 million for the year ended December 31, 2014.

[4] During the fourth quarter of 2015, we incurred an expense in the amount of $67 million to reflect a non-cash contribution to The TripAdvisor Charitable Foundation (the “Foundation”), which was recorded to general and administrative expense in our consolidated statement of operations. TripAdvisor had historically funded 2% of its annual operating income before amortization and stock-based compensation. TripAdvisor’s pledge agreement provided for an immediate satisfaction of all future annual contributions, by paying an amount equal to eight multiplied by TripAdvisor’s prior year contribution to the Foundation. TripAdvisor exercised this right under its pledge agreement in December 2015. We settled this obligation in treasury shares based on the fair value of our common stock on the date the treasury shares were issued to the Foundation and therefore given the use of stock to settle the obligation, the amount has been excluded from Adjusted EBITDA. TripAdvisor does not expect to make any future contributions to the Foundation.

[5] During the fourth quarter of 2015, we recognized an incremental $59 million charge over the third quarter of 2015, related to a non-cash charitable contribution recorded to general and administrative expense on our consolidated statement of operations. Refer to “Note 17 – Segments and Geographic Information” for a discussion of this charitable contribution.