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Revenue Recognition - Reconciliation of Disaggregated Revenue to Segment Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
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Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue |  | $ 335 | $ 428 | $ 422 | $ 376 | $ 346 | $ 458 | $ 433 | $ 378 | $ 1,560 | [1] | $ 1,615 | [1] | $ 1,556
Hotels, Media & Platform |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue | [1] |  |  |  |  |  |  |  |  | 939 |  | 1,001 |  |
Experiences & Dining Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue | [1] |  |  |  |  |  |  |  |  | 456 |  | 372 |  |
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue | [1],[2] |  |  |  |  |  |  |  |  | 165 |  | 242 |  |
Tripadvisor-Branded Hotels | Hotels, Media & Platform |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue | [1] |  |  |  |  |  |  |  |  | 779 |  | 848 |  |
Tripadvisor-Branded Display and Platform | Hotels, Media & Platform |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue | [1] |  |  |  |  |  |  |  |  | $ 160 |  | $ 153 |  |
[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/Cruises/Car, SmarterTravel and Tripadvisor China business units and does not constitute a reportable segment

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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