Goodwill - Summary of Changes in Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 843
Foreign currency translation adjustments	(23)
Goodwill, Ending Balance	820
Hotels, Media & Platform
Goodwill [Line Items]
Goodwill, Beginning Balance	407
Allocation to new segments	(407)	[1]
Experiences & Dining Segment
Goodwill [Line Items]
Goodwill, Beginning Balance	344
Foreign currency translation adjustments	(18)
Allocation to new segments	(326)	[1]
Other
Goodwill [Line Items]
Goodwill, Beginning Balance	92	[2]
Foreign currency translation adjustments	(5)
Allocation to new segments	(87)	[1],[2]
Tripadvisor Core
Goodwill [Line Items]
Allocation to new segments	599	[1]
Goodwill, Ending Balance	599
Viator
Goodwill [Line Items]
Allocation to new segments	120	[1]
Goodwill, Ending Balance	120
The Fork
Goodwill [Line Items]
Allocation to new segments	101	[1]
Goodwill, Ending Balance	$ 101

[1] See “Note 13: Segment Information” for information regarding our reportable segment changes in the second quarter of 2022.

[2] Other consists of the combination of Rentals, Flights & Car, and Cruises, and did not previously constitute a reportable segment.