Segment Information - Summary of Segment Information (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2022		Jun. 30, 2021		Jun. 30, 2022		Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	$ 417		$ 235		$ 679		$ 358
Adjusted EBITDA		109		25		137		(1)
Depreciation and amortization		(25)		(28)		(50)		(57)
Stock-based compensation		(21)		(32)		(43)		(61)
Operating income (loss)		63		(35)		44		(119)
Other income (expense), net		(10)		(11)		(23)		(22)
Income (loss) before income taxes		53		(46)		21		(141)
(Provision) benefit for income taxes		(22)		6		(24)		21
Net income (loss)		31		(40)		(3)		(120)
Tripadvisor Core
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	274		184		465		291
Viator
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	136		40		192		52
The Fork
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	32		18		58		24
Intersegment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0		0		0		0
Third-Party
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		417		235		679		358
Reportable Segments | Tripadvisor Core
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		274	[2]	184	[3]	465	[2]	291	[3]
Adjusted EBITDA		116	[2]	49	[3]	172	[2]	55	[3]
Reportable Segments | Viator
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		136		40		192		52
Adjusted EBITDA		0		(13)		(20)		(26)
Reportable Segments | The Fork
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		32		18		58		24
Adjusted EBITDA		(7)		(11)		(15)		(30)
Reportable Segments | Intersegment | Tripadvisor Core
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		25	[2]	7	[3]	36	[2]	9	[3]
Reportable Segments | Intersegment | Viator
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0		0		0		0
Reportable Segments | Intersegment | The Fork
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		0		0		0		0
Reportable Segments | Third-Party | Tripadvisor Core
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		249	[2]	177	[3]	429	[2]	282	[3]
Reportable Segments | Third-Party | Viator
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		136		40		192		52
Reportable Segments | Third-Party | The Fork
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		32		18		58		24
Corporate and Eliminations
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		(25)		(7)		(36)		(9)
Adjusted EBITDA		0		0		0		0
Depreciation and amortization		25		28		50		57
Stock-based compensation		21		32		43		61
Corporate and Eliminations | Intersegment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		(25)		(7)		(36)		(9)
Corporate and Eliminations | Third-Party
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 0		$ 0		$ 0		$ 0

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

[2] Includes allocated corporate general and administrative personnel costs from our Tripadvisor Core segment of $1 million for both the three and six months ended June 30, 2022, and $1 million for both the three and six months ended June 30, 2021.

[3] Includes allocated corporate general and administrative personnel costs from our Tripadvisor Core segment of $1 million for both the three and six months ended June 30, 2022, and $1 million and $2 million for the three and six months ended June 30, 2021, respectively.