Segment Information - Summary of Segment Information (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020		Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue	[1]	$ 59		$ 422		$ 337		$ 798
Adjusted EBITDA		(74)		128		(34)		217
Depreciation and amortization		(32)		(30)		(64)		(61)
Stock-based compensation		(25)		(32)		(51)		(60)
Restructuring and other related reorganization costs		(33)				(42)
Operating income (loss)		(164)		66		(191)		96
Other income (expense), net		(15)		2		(16)		5
Income (loss) before income taxes		(179)		68		(207)		101
(Provision) benefit for income taxes		26		(34)		38		(41)
Net income (loss)		(153)		34		(169)		60
Hotels, Media & Platform
Segment Reporting Information [Line Items]
Revenue	[1]	38		254		207		508
Experiences & Dining Segment
Segment Reporting Information [Line Items]
Revenue	[1]	14		125		97		206
Other
Segment Reporting Information [Line Items]
Revenue	[2]	7		43		33		84
Adjusted EBITDA	[2]	(3)		13		3		22
Operating Segments | Hotels, Media & Platform
Segment Reporting Information [Line Items]
Revenue		38	[3]	254	[4]	207	[3]	508	[4]
Adjusted EBITDA		(33)	[3]	108	[4]	20	[3]	212	[4]
Operating Segments | Experiences & Dining Segment
Segment Reporting Information [Line Items]
Revenue		14		125		97		206
Adjusted EBITDA		(38)		7		(57)		(17)
Corporate and Unallocated
Segment Reporting Information [Line Items]
Depreciation and amortization		(32)		(30)		(64)		(61)
Stock-based compensation		(25)		$ (32)		(51)		$ (60)
Restructuring and other related reorganization costs		$ (33)				$ (42)

[1] Our revenue is recognized primarily at a point in time for all reported segments.

[2] Other consists of the combination of our Rentals, Flights & Car, Cruises, and Tripadvisor China business units and does not constitute a reportable segment.

[3] Includes allocated corporate general and administrative costs of $16 million and $34 million and Tripadvisor-branded advertising expenses (primarily television advertising) of $1 million and $5 million for the three and six months ended June 30, 2020, respectively.

[4] Includes allocated corporate general and administrative costs of $17 million and $31 million and Tripadvisor-branded advertising expenses (primarily television advertising) of $26 million and $55 million for the three and six months ended June 30, 2019, respectively.