Segment and Geographic Information - Summary of Segment Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[1]	$ 1,788		$ 1,492		$ 902
Adjusted EBITDA		334		295		100
Depreciation and amortization		(87)		(97)		(111)
Stock-based compensation		(96)		(88)		(120)
Restructuring and other related reorganization costs	[2]	(22)
Legal reserves and settlements				(1)
Non-recurring expenses (income) (4)		(3)	[3]	(8)	[4]
Operating income (loss)		126		101		(131)
Other income (expense), net		(1)		(34)		(54)
Income (loss) before income taxes		125		67		(185)
(Provision) benefit for income taxes		(115)		(47)		37
Net income (loss)		10		20		(148)
Third-Party
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)		1,788		1,492		902
Intersegment
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)		0		0		0
Reportable Segments | Brand Tripadvisor
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[1],[5]	1,031		966		665
Adjusted EBITDA	[5]	348		345		177
Restructuring and other related reorganization costs	[2],[5]	(10)
Reportable Segments | Viator
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[1],[6]	737		493		184
Adjusted EBITDA	[6]	0		(11)		(31)
Restructuring and other related reorganization costs	[2],[6]	(3)
Reportable Segments | TheFork
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[1],[7]	154		126		85
Adjusted EBITDA	[7]	(14)		(39)		(46)
Restructuring and other related reorganization costs	[2],[7]	(9)
Reportable Segments | Third-Party | Brand Tripadvisor
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[5]	897		873		633
Reportable Segments | Third-Party | Viator
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[6]	737		493		184
Reportable Segments | Third-Party | TheFork
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[7]	154		126		85
Reportable Segments | Intersegment | Brand Tripadvisor
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[5]	134		93		32
Reportable Segments | Intersegment | Viator
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[6]	0		0		0
Reportable Segments | Intersegment | TheFork
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)	[7]	0		0		0
Corporate and Eliminations
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)		(134)		(93)		(32)
Adjusted EBITDA		0		0		0
Depreciation and amortization		(87)		(97)		(111)
Stock-based compensation		(96)		(88)		(120)
Restructuring and other related reorganization costs	[2]	0
Legal reserves and settlements				(1)
Non-recurring expenses (income) (4)		(3)	[3]	8	[4]
Corporate and Eliminations | Third-Party
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)		0		0		0
Corporate and Eliminations | Intersegment
Segment Reporting Information [Line Items]
Revenue (Note 2, Note 18)		$ (134)		$ (93)		$ (32)

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

[2] Refer to “Note 7: Accrued Expenses and Other Current Liabilities” for information regarding restructuring and other related reorganization costs.

[3] The Company expensed $3 million of previously capitalized transaction costs during 2023, to general and administrative expenses on our consolidated statement of operations. The Company considers such costs to be non-recurring in nature.

[4] The Company incurred a loss of approximately $8 million during the fourth quarter of 2022, as the result of external fraud. This loss was recorded to general and administrative expenses on the consolidated statement of operations for December 31, 2022. The Company considers such costs to be non-recurring in nature. To the extent the Company recovers any losses in future periods related to this incident, the Company plans to reduce Adjusted EBITDA by the recovery amount in that same period.

[5] Corporate general and administrative personnel costs of $6 million, $5 million and $6 million for the years ended December 31, 2023, 2022 and 2021, respectively, were allocated to the Viator and TheFork segments.

[6] Includes allocated corporate general and administrative personnel costs from our Brand Tripadvisor segment of $3 million, $2 million and $3 million for the years ended December 31, 2023, 2022 and 2021, respectively.

[7] Includes allocated corporate general and administrative personnel costs from our Brand Tripadvisor segment of $3 million, $3 million and $3 million for the years ended December 31, 2023, 2022 and 2021, respectively.