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Discontinued Operations - Major Line Items Included in Statement of Operations (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Operating expenses: |  |  |
Net loss from discontinued operations | $ (13) | $ (630) | $ (167)
Discontinued Operations, Disposed Of By Means Other Than Sale, Wind Down | Zillow Offers Operations |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Revenue | 4,249 | 6,015 | 1,716
Cost of revenue | 4,023 | 6,071 | 1,611
Gross profit (loss) | 226 | (56) | 105
Operating expenses: |  |  |
Sales and marketing | 153 | 361 | 156
Technology and development | 6 | 53 | 66
General and administrative | 10 | 35 | 33
Impairment and restructuring costs | 25 | 62 | 0
Total operating expenses | 194 | 511 | 255
Income (loss) from discontinued operations | 32 | (567) | (150)
Loss on extinguishment of debt | (21) | 0 | 0
Other income, net | 13 | 3 | 0
Interest expense | (36) | (64) | (17)
Loss from discontinued operations before income taxes | (12) | (628) | (167)
Income tax benefit (expense) | (1) | (2) | 0
Net loss from discontinued operations | $ (13) | $ (630) | $ (167)
Net loss from discontinued operations per share: |  |  |
Basic (usd per share) | $ (0.05) | $ (2.52) | $ (0.75)
Diluted (usd per share) | $ (0.05) | $ (2.41) | $ (0.72)

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