Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Disaggregation of Revenue (Details)

v3.10.0.1
Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - TripAdvisor
$ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
Disaggregation of Revenue [Line Items]  
Revenue $ 1,615
Hotel  
Disaggregation of Revenue [Line Items]  
Revenue 1,157
TripAdvisor-branded click-based Advertising and Transaction Revenue  
Disaggregation of Revenue [Line Items]  
Revenue 722
TripAdvisor-branded display-based Advertising and Subscription Revenue  
Disaggregation of Revenue [Line Items]  
Revenue 308
Other Hotel Revenue  
Disaggregation of Revenue [Line Items]  
Revenue 127
Non-Hotel  
Disaggregation of Revenue [Line Items]  
Revenue $ 458