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Segment and Geographic Information - Summary of Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
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
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) |  | $ 335 | $ 428 | $ 422 | $ 376 | $ 346 | $ 458 | $ 433 | $ 378 | $ 1,560 | [1] | $ 1,615 | [1] | $ 1,556 |
Adjusted EBITDA |  |  |  |  |  |  |  |  |  | 438 |  | 422 |  | 331 |
Depreciation |  |  |  |  |  |  |  |  |  | (93) |  | (82) |  | (79) |
Amortization of intangible assets |  |  |  |  |  |  |  |  |  | (33) |  | (34) |  | (32) |
Stock-based compensation |  |  |  |  |  |  |  |  |  | (124) |  | (118) |  | (96) |
Restructuring and other related reorganization costs |  |  |  |  |  |  |  |  |  | (1) |  |  |  |  |
Legal reserves and settlements |  |  |  |  |  |  |  |  |  |  |  | (5) |  |  |
Operating income |  | 23 | 68 | 66 | 31 | 23 | 89 | 49 | 23 | 187 |  | 183 |  | 124 |
Other income (expense), net |  |  |  |  |  |  |  |  |  | 7 |  | (10) |  | (14) |
Income before income taxes |  |  |  |  |  |  |  |  |  | 194 |  | 173 |  | 110 |
Provision for income taxes |  |  |  |  |  |  |  |  |  | (68) |  | (60) |  | (129) | [2]
Net income (loss) |  | $ 15 | $ 50 | $ 34 | $ 26 | $ 7 | $ 69 | $ 32 | $ 5 | 126 |  | 113 |  | (19) |
Hotels, Media & Platform |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) | [1] |  |  |  |  |  |  |  |  | 939 |  | 1,001 |  |  |
Experiences & Dining Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) | [1] |  |  |  |  |  |  |  |  | 456 |  | 372 |  |  |
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) | [3] |  |  |  |  |  |  |  |  | 165 |  | 242 |  | 270 |
Adjusted EBITDA | [3] |  |  |  |  |  |  |  |  | 55 |  | 45 |  | 41 |
Reportable Segments | Hotels, Media & Platform |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) | [4] |  |  |  |  |  |  |  |  | 939 |  | 1,001 |  | 1,022 |
Adjusted EBITDA | [4] |  |  |  |  |  |  |  |  | 378 |  | 329 |  | 267 |
Reportable Segments | Experiences & Dining Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue (Note 4) |  |  |  |  |  |  |  |  |  | 456 |  | 372 |  | 264 |
Adjusted EBITDA |  |  |  |  |  |  |  |  |  | 5 |  | 48 |  | 23 |
Corporate and Unallocated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation |  |  |  |  |  |  |  |  |  | (93) |  | (82) |  | (79) |
Amortization of intangible assets |  |  |  |  |  |  |  |  |  | (33) |  | (34) |  | (32) |
Stock-based compensation |  |  |  |  |  |  |  |  |  | (124) |  | (118) |  | $ (96) |
Restructuring and other related reorganization costs |  |  |  |  |  |  |  |  |  | $ (1) |  |  |  |  |
Legal reserves and settlements |  |  |  |  |  |  |  |  |  |  |  | $ (5) |  |  |
[1] | Our revenue is recognized primarily at a point in time for all reported segments
[2] | The year ended December 31, 2017 reflects $67 million of Transition Tax and $6 million of tax expense recorded due to the remeasurement of net deferred tax assets related to the 2017 Tax Act enacted on December 22, 2017. Refer to “Note 11: Income Taxes” for further information.
[3] | Other consists of the combination of our Rentals, Flights/Cruises/Car, SmarterTravel and Tripadvisor China business units and does not constitute a reportable segment.
[4] | Includes allocated corporate general and administrative costs of $69 million, $77 million and $76 million and Tripadvisor-branded advertising expenses (primarily television advertising) of $77 million, $122 million and $82 million for the years ended December 31, 2019, 2018 and 2017, respectively.

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