Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]      
Revenue $ 604 $ 1,560 $ 1,615
Corporate and other      
Disaggregation of Revenue [Line Items]      
Revenue 57 165 242
Tripadvisor      
Disaggregation of Revenue [Line Items]      
Revenue 604 1,560 1,615
Tripadvisor | Corporate and other      
Disaggregation of Revenue [Line Items]      
Revenue 57 165 242
Hotel, Media & Platform | Tripadvisor      
Disaggregation of Revenue [Line Items]      
Revenue 361 939 1,001
Hotel, Media & Platform | Tripadvisor-branded hotels | Tripadvisor      
Disaggregation of Revenue [Line Items]      
Revenue 292 779 848
Hotel, Media & Platform | Tripadvisor-branded display and platform | Tripadvisor      
Disaggregation of Revenue [Line Items]      
Revenue 69 160 153
Experiences & Dining | Tripadvisor      
Disaggregation of Revenue [Line Items]      
Revenue $ 186 $ 456 $ 372