Revenue Recognition - Reconciliation of Disaggregated Revenue to Segment Revenue (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Total Revenue	[1]	$ 59	$ 422	$ 337	$ 798
Hotels, Media & Platform
Disaggregation Of Revenue [Line Items]
Total Revenue	[1]	38	254	207	508
Experiences & Dining Segment
Disaggregation Of Revenue [Line Items]
Total Revenue	[1]	14	125	97	206
Other
Disaggregation Of Revenue [Line Items]
Total Revenue	[1],[2]	7	43	33	84
Tripadvisor-Branded Hotels | Hotels, Media & Platform
Disaggregation Of Revenue [Line Items]
Total Revenue	[1]	31	211	168	427
Tripadvisor-Branded Display and Platform | Hotels, Media & Platform
Disaggregation Of Revenue [Line Items]
Total Revenue	[1]	$ 7	$ 43	$ 39	$ 81

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

[2] Other consists of the combination of our Rentals, Flights & Car, Cruises, and Tripadvisor China business units and does not constitute a reportable segment.