Goodwill and Intangible Assets, Net - Summary of Goodwill Activity by Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Beginning balance	$ 829	$ 822
Foreign currency translation adjustments	(15)	7
Ending balance	814	829
Brand Tripadvisor
Goodwill [Line Items]
Beginning balance	601	599
Foreign currency translation adjustments		2
Ending balance	601	601
Viator
Goodwill [Line Items]
Beginning balance	120	119
Foreign currency translation adjustments	(3)	1
Ending balance	117	120
TheFork
Goodwill [Line Items]
Beginning balance	108	104
Foreign currency translation adjustments	(12)	4
Ending balance	$ 96	$ 108