Goodwill and Intangible Assets, Net - Summary of Goodwill Activity by Reportable Segments (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Beginning balance		$ 822	$ 843
Foreign currency translation adjustments		7	(21)
Ending balance		829	822
Hotels, Media & Platform
Goodwill [Line Items]
Beginning balance		0	407
Allocation to new segments			(407)
Ending balance		0	0
Experiences & Dining Segment
Goodwill [Line Items]
Beginning balance		0	344
Foreign currency translation adjustments		0	(18)
Allocation to new segments			(326)
Ending balance		0	0
Other
Goodwill [Line Items]
Beginning balance	[1]	0	92
Foreign currency translation adjustments	[1]	0	(5)
Allocation to new segments	[1]		(87)
Ending balance		0	0	[1]
Brand Tripadvisor
Goodwill [Line Items]
Beginning balance		599
Foreign currency translation adjustments		2
Allocation to new segments			599
Ending balance		601	599
Viator
Goodwill [Line Items]
Beginning balance		119
Foreign currency translation adjustments		1	(1)
Allocation to new segments			120
Ending balance		120	119
TheFork
Goodwill [Line Items]
Beginning balance		104
Foreign currency translation adjustments		4	3
Allocation to new segments			101
Ending balance		$ 108	$ 104

[1] Other consists of the combination of alternative accommodation rentals, flights, car, and cruises offerings, and did not previously constitute a reportable segment.