| September 30, 2022 | December 31, 2021 | ||||||||||
| Assets | |||||||||||
| Current assets: | |||||||||||
| Cash and cash equivalents | $ | 1,973 | $ | 2,315 | |||||||
| Short-term investments | 1,516 | 514 | |||||||||
Accounts receivable, net | 78 | 77 | |||||||||
| Mortgage loans held for sale | 49 | 107 | |||||||||
| Prepaid expenses and other current assets | 153 | 140 | |||||||||
| Restricted cash | 2 | 1 | |||||||||
| Current assets of discontinued operations | — | 4,526 | |||||||||
| Total current assets | 3,771 | 7,680 | |||||||||
| Contract cost assets | 25 | 35 | |||||||||
| Property and equipment, net | 261 | 215 | |||||||||
| Right of use assets | 127 | 130 | |||||||||
| Goodwill | 2,374 | 2,374 | |||||||||
| Intangible assets, net | 149 | 176 | |||||||||
| Other assets | 11 | 3 | |||||||||
| Noncurrent assets of discontinued operations | — | 82 | |||||||||
| Total assets | $ | 6,718 | $ | 10,695 | |||||||
| Liabilities and shareholders’ equity | |||||||||||
| Current liabilities: | |||||||||||
| Accounts payable | $ | 19 | $ | 11 | |||||||
| Accrued expenses and other current liabilities | 112 | 89 | |||||||||
| Accrued compensation and benefits | 56 | 61 | |||||||||
| Borrowings under credit facilities | 45 | 113 | |||||||||
| Deferred revenue | 50 | 51 | |||||||||
| Lease liabilities, current portion | 30 | 24 | |||||||||
| Current liabilities of discontinued operations | — | 3,533 | |||||||||
| Total current liabilities | 312 | 3,882 | |||||||||
| Lease liabilities, net of current portion | 141 | 148 | |||||||||
| Convertible senior notes | 1,659 | 1,319 | |||||||||
| Other long-term liabilities | 11 | 5 | |||||||||
| Total liabilities | 2,123 | 5,354 | |||||||||
| Shareholders’ equity: | |||||||||||
Class A common stock | — | — | |||||||||
Class B common stock | — | — | |||||||||
Class C capital stock | — | — | |||||||||
| Additional paid-in capital | 6,154 | 7,001 | |||||||||
| Accumulated other comprehensive income (loss) | (19) | 7 | |||||||||
| Accumulated deficit | (1,540) | (1,667) | |||||||||
| Total shareholders’ equity | 4,595 | 5,341 | |||||||||
| Total liabilities and shareholders’ equity | $ | 6,718 | $ | 10,695 | |||||||
| Three Months Ended September 30, | Nine Months Ended September 30, | ||||||||||||||||||||||
| 2022 | 2021 | 2022 | 2021 | ||||||||||||||||||||
| Revenue | $ | 483 | $ | 550 | $ | 1,523 | $ | 1,597 | |||||||||||||||
| Cost of revenue (1) | 89 | 82 | 278 | 228 | |||||||||||||||||||
| Gross profit | 394 | 468 | 1,245 | 1,369 | |||||||||||||||||||
| Operating expenses: | |||||||||||||||||||||||
| Sales and marketing (1) | 165 | 205 | 502 | 532 | |||||||||||||||||||
| Technology and development (1) | 142 | 101 | 369 | 319 | |||||||||||||||||||
| General and administrative (1) | 138 | 104 | 370 | 303 | |||||||||||||||||||
| Restructuring costs (1) | — | — | 14 | — | |||||||||||||||||||
| Acquisition-related costs | — | 3 | — | 8 | |||||||||||||||||||
| Total operating expenses | 445 | 413 | 1,255 | 1,162 | |||||||||||||||||||
| Income (loss) from continuing operations | (51) | 55 | (10) | 207 | |||||||||||||||||||
| Loss on extinguishment of debt | — | (15) | — | (17) | |||||||||||||||||||
| Other income, net | 12 | 2 | 19 | 5 | |||||||||||||||||||
| Interest expense | (9) | (29) | (26) | (99) | |||||||||||||||||||
| Income (loss) from continuing operations before income taxes | (48) | 13 | (17) | 96 | |||||||||||||||||||
| Income tax benefit (expense) | (3) | 5 | 1 | — | |||||||||||||||||||
| Net income (loss) from continuing operations | (51) | 18 | (16) | 96 | |||||||||||||||||||
| Net loss from discontinued operations, net of income taxes | (2) | (347) | (13) | (363) | |||||||||||||||||||
| Net loss | $ | (53) | $ | (329) | $ | (29) | $ | (267) | |||||||||||||||
| Net income (loss) from continuing operations per share: | |||||||||||||||||||||||
| Basic | $ | (0.21) | $ | 0.07 | $ | (0.07) | $ | 0.39 | |||||||||||||||
| Diluted | $ | (0.21) | $ | 0.07 | $ | (0.07) | $ | 0.37 | |||||||||||||||
| Net loss per share: | |||||||||||||||||||||||
| Basic | $ | (0.22) | $ | (1.29) | $ | (0.12) | $ | (1.07) | |||||||||||||||
| Diluted | $ | (0.22) | $ | (1.24) | $ | (0.12) | $ | (1.02) | |||||||||||||||
| Weighted-average shares outstanding: | |||||||||||||||||||||||
| Basic | 240,080 | 254,074 | 244,157 | 248,564 | |||||||||||||||||||
| Diluted | 240,080 | 265,112 | 244,157 | 262,043 | |||||||||||||||||||
| (1) Includes share-based compensation expense as follows: | |||||||||||||||||||||||
| Cost of revenue | $ | 5 | $ | 2 | $ | 12 | $ | 7 | |||||||||||||||
| Sales and marketing | 21 | 11 | 46 | 31 | |||||||||||||||||||
| Technology and development | 57 | 25 | 123 | 78 | |||||||||||||||||||
| General and administrative | 64 | 32 | 142 | 88 | |||||||||||||||||||
| Restructuring costs | — | — | 2 | — | |||||||||||||||||||
| Share-based compensation - continuing operations | $ | 147 | $ | 70 | $ | 325 | $ | 204 | |||||||||||||||
| Other Financial Data: | |||||||||||||||||||||||
| Income (loss) from continuing operations before income taxes: | |||||||||||||||||||||||
| IMT segment | $ | 5 | $ | 130 | $ | 182 | $ | 407 | |||||||||||||||
| Mortgages segment | (51) | (6) | (116) | (26) | |||||||||||||||||||
| Homes segment | (8) | (69) | (80) | (175) | |||||||||||||||||||
| Corporate items (2) | 6 | (42) | (3) | (110) | |||||||||||||||||||
| Total income (loss) from continuing operations before income taxes | $ | (48) | $ | 13 | $ | (17) | $ | 96 | |||||||||||||||
| Adjusted EBITDA (3): | |||||||||||||||||||||||
| IMT segment | $ | 164 | $ | 206 | $ | 559 | $ | 633 | |||||||||||||||
| Mortgages segment | (27) | 5 | (60) | 5 | |||||||||||||||||||
| Homes segment | (7) | (55) | (58) | (138) | |||||||||||||||||||
| Total Adjusted EBITDA | $ | 130 | $ | 156 | $ | 441 | $ | 500 | |||||||||||||||
(2) Certain corporate items are not directly attributable to any of our segments, including loss on extinguishment of debt, interest income earned on our short-term investments included in other income and interest costs on our convertible senior notes included in interest expense. (3) Adjusted EBITDA is a non-GAAP financial measure; it is not calculated or presented in accordance with U.S. generally accepted accounting principles, or GAAP. See Exhibit 99.1 for more information regarding our presentation of Adjusted EBITDA and for a reconciliation of Adjusted EBITDA to net loss on a consolidated basis and income (loss) from continuing operations before income taxes for each segment, the most directly comparable GAAP financial measures, for each of the periods presented. Adjusted EBITDA on a consolidated basis and for each segment excludes the impact of discontinued operations. | |||||||||||||||||||||||
| Nine Months Ended September 30, | |||||||||||
| 2022 | 2021 | ||||||||||
| Operating activities | |||||||||||
| Net loss | $ | (29) | $ | (267) | |||||||
| Adjustments to reconcile net loss to net cash provided by (used in) operating activities: | |||||||||||
| Depreciation and amortization | 121 | 88 | |||||||||
| Share-based compensation | 341 | 231 | |||||||||
| Amortization of right of use assets | 17 | 18 | |||||||||
| Amortization of contract cost assets | 23 | 32 | |||||||||
| Amortization of debt discount and debt issuance costs | 24 | 72 | |||||||||
| Loss on extinguishment of debt | 21 | 17 | |||||||||
| Inventory valuation adjustment | 9 | 304 | |||||||||
| Other adjustments to reconcile net loss to cash provided by (used in) operating activities | (9) | 10 | |||||||||
| Changes in operating assets and liabilities: | |||||||||||
| Accounts receivable | 76 | (89) | |||||||||
| Mortgage loans held for sale | 58 | 110 | |||||||||
| Inventory | 3,904 | (3,570) | |||||||||
| Prepaid expenses and other assets | (13) | (70) | |||||||||
| Contract cost assets | (13) | (22) | |||||||||
| Lease liabilities | (15) | (21) | |||||||||
| Accounts payable | 1 | 17 | |||||||||
| Accrued expenses and other current liabilities | (49) | 163 | |||||||||
| Accrued compensation and benefits | (52) | 11 | |||||||||
| Deferred revenue | (1) | 4 | |||||||||
| Other long-term liabilities | 6 | — | |||||||||
| Net cash provided by (used in) operating activities | 4,420 | (2,962) | |||||||||
| Investing activities | |||||||||||
| Proceeds from maturities of investments | 455 | 1,696 | |||||||||
| Purchases of investments | (1,474) | (509) | |||||||||
| Purchases of property and equipment | (87) | (45) | |||||||||
| Purchases of intangible assets | (17) | (24) | |||||||||
| Cash paid for acquisition, net | — | (497) | |||||||||
| Net cash provided by (used in) investing activities | (1,123) | 621 | |||||||||
| Financing activities | |||||||||||
| Proceeds from issuance of Class C capital stock, net of issuance costs | — | 545 | |||||||||
| Proceeds from issuance of term loan, net of issuance costs | — | 443 | |||||||||
| Proceeds from borrowings on credit facilities | — | 2,639 | |||||||||
| Repayments of borrowings on credit facilities | (2,205) | (535) | |||||||||
| Net repayments on warehouse line of credit and repurchase agreements | (68) | (101) | |||||||||
| Repurchases of Class A common stock and Class C capital stock | (773) | — | |||||||||
| Settlement of long-term debt | (1,158) | (1) | |||||||||
| Proceeds from exercise of stock options | 44 | 98 | |||||||||
| Net cash provided by (used in) financing activities | (4,160) | 3,088 | |||||||||
| Net increase (decrease) in cash, cash equivalents and restricted cash during period | (863) | 747 | |||||||||
| Cash, cash equivalents and restricted cash at beginning of period | 2,838 | 1,779 | |||||||||
| Cash, cash equivalents and restricted cash at end of period | $ | 1,975 | $ | 2,526 | |||||||
| Supplemental disclosures of cash flow information | |||||||||||
| Cash paid for interest | $ | 42 | $ | 58 | |||||||
| Cash paid for taxes | 5 | — | |||||||||
| Noncash transactions: | |||||||||||
| Write-off of fully amortized intangible assets | $ | 200 | $ | 55 | |||||||
| Write-off of fully depreciated property and equipment | 48 | 38 | |||||||||
| Capitalized share-based compensation | 33 | 19 | |||||||||
| Recognition (derecognition) of operating right of use assets and lease liabilities | 14 | (12) | |||||||||
| Property and equipment purchased on account | 2 | 2 | |||||||||
| Issuance (settlement) of beneficial interests in securitizations | (79) | 25 | |||||||||
| Three Months Ended September 30, | Nine Months Ended September 30, | ||||||||||||||||||||||
| 2022 | 2021 | 2022 | 2021 | ||||||||||||||||||||
Net loss, as reported | $ | (53) | $ | (329) | $ | (29) | $ | (267) | |||||||||||||||
| Net loss from discontinued operations, net of income taxes | 2 | 347 | 13 | 363 | |||||||||||||||||||
| Share-based compensation | 147 | 70 | 323 | 204 | |||||||||||||||||||
| Restructuring costs | — | — | 14 | — | |||||||||||||||||||
| Acquisition-related costs | — | 3 | — | 8 | |||||||||||||||||||
| Loss on extinguishment of debt | — | 15 | — | 17 | |||||||||||||||||||
| Income taxes | 3 | (5) | (1) | — | |||||||||||||||||||
| Net income, adjusted | $ | 99 | $ | 101 | $ | 320 | $ | 325 | |||||||||||||||
| Non-GAAP net income per share: | |||||||||||||||||||||||
| Basic | $ | 0.41 | $ | 0.40 | $ | 1.31 | $ | 1.31 | |||||||||||||||
| Diluted | $ | 0.38 | $ | 0.38 | $ | 1.22 | $ | 1.24 | |||||||||||||||
| Weighted-average shares outstanding: | |||||||||||||||||||||||
| Basic | 240,080 | 254,074 | 244,157 | 248,564 | |||||||||||||||||||
| Diluted | 266,211 | 265,112 | 271,369 | 262,043 | |||||||||||||||||||
| Three Months Ended September 30, | Nine Months Ended September 30, | ||||||||||||||||||||||
| 2022 | 2021 | 2022 | 2021 | ||||||||||||||||||||
| Denominator for basic calculation | 240,080 | 254,074 | 244,157 | 248,564 | |||||||||||||||||||
| Effect of dilutive securities: | |||||||||||||||||||||||
| Option awards | 523 | 8,874 | 1,341 | 10,581 | |||||||||||||||||||
| Unvested restricted stock units | 162 | 2,164 | 425 | 2,898 | |||||||||||||||||||
| Convertible senior notes due in 2024 and 2026 | 25,446 | — | 25,446 | — | |||||||||||||||||||
| Denominator for dilutive calculation | 266,211 | 265,112 | 271,369 | 262,043 | |||||||||||||||||||
| Three Months Ended September 30, 2022 | Three Months Ended September 30, 2021 | ||||||||||||||||||||||||||||||||||
| IMT | Mortgages | Homes | IMT | Mortgages | Homes | ||||||||||||||||||||||||||||||
| Revenue: | |||||||||||||||||||||||||||||||||||
| Premier Agent | $ | 312 | $ | — | $ | — | $ | 359 | $ | — | $ | — | |||||||||||||||||||||||
| Rentals | 74 | — | — | 67 | — | — | |||||||||||||||||||||||||||||
| Other | 71 | — | — | 54 | — | — | |||||||||||||||||||||||||||||
| Mortgages | — | 26 | — | — | 70 | — | |||||||||||||||||||||||||||||
| Total revenue | 457 | 26 | — | 480 | 70 | — | |||||||||||||||||||||||||||||
| Cost of revenue | 67 | 17 | 5 | 51 | 22 | 9 | |||||||||||||||||||||||||||||
| Gross profit | 390 | 9 | (5) | 429 | 48 | (9) | |||||||||||||||||||||||||||||
| Operating expenses: | |||||||||||||||||||||||||||||||||||
| Sales and marketing | 145 | 20 | — | 159 | 29 | 17 | |||||||||||||||||||||||||||||
| Technology and development | 126 | 16 | — | 75 | 7 | 19 | |||||||||||||||||||||||||||||
| General and administrative | 110 | 25 | 3 | 62 | 18 | 24 | |||||||||||||||||||||||||||||
| Acquisition-related costs | — | — | — | 3 | — | — | |||||||||||||||||||||||||||||
| Total operating expenses | 381 | 61 | 3 | 299 | 54 | 60 | |||||||||||||||||||||||||||||
| Income (loss) from continuing operations | 9 | (52) | (8) | 130 | (6) | (69) | |||||||||||||||||||||||||||||
| Segment other income (expense) | (4) | 1 | — | — | 1 | — | |||||||||||||||||||||||||||||
| Segment interest expense | — | — | — | — | (1) | — | |||||||||||||||||||||||||||||
| Income (loss) from continuing operations before income taxes (1) | $ | 5 | $ | (51) | $ | (8) | $ | 130 | $ | (6) | $ | (69) | |||||||||||||||||||||||
| Nine Months Ended September 30, 2022 | Nine Months Ended September 30, 2021 | ||||||||||||||||||||||||||||||||||
| IMT | Mortgages | Homes | IMT | Mortgages | Homes | ||||||||||||||||||||||||||||||
| Revenue: | |||||||||||||||||||||||||||||||||||
| Premier Agent | $ | 1,008 | $ | — | $ | — | $ | 1,042 | $ | — | $ | — | |||||||||||||||||||||||
| Rentals | 206 | — | — | 204 | — | — | |||||||||||||||||||||||||||||
| Other | 208 | — | — | 156 | — | — | |||||||||||||||||||||||||||||
| Mortgages | — | 101 | — | — | 195 | — | |||||||||||||||||||||||||||||
| Total revenue | 1,422 | 101 | — | 1,402 | 195 | — | |||||||||||||||||||||||||||||
| Cost of revenue | 203 | 54 | 21 | 141 | 62 | 25 | |||||||||||||||||||||||||||||
| Gross profit | 1,219 | 47 | (21) | 1,261 | 133 | (25) | |||||||||||||||||||||||||||||
| Operating expenses: | |||||||||||||||||||||||||||||||||||
| Sales and marketing | 430 | 61 | 11 | 413 | 81 | 38 | |||||||||||||||||||||||||||||
| Technology and development | 323 | 37 | 9 | 244 | 24 | 51 | |||||||||||||||||||||||||||||
| General and administrative | 274 | 63 | 33 | 189 | 53 | 61 | |||||||||||||||||||||||||||||
| Restructuring costs | 6 | 2 | 6 | — | — | — | |||||||||||||||||||||||||||||
| Acquisition-related costs | — | — | — | 8 | — | — | |||||||||||||||||||||||||||||
| Total operating expenses | 1,033 | 163 | 59 | 854 | 158 | 150 | |||||||||||||||||||||||||||||
| Income (loss) from continuing operations | 186 | (116) | (80) | 407 | (25) | (175) | |||||||||||||||||||||||||||||
| Segment other income (expense) | (4) | 2 | — | — | 3 | — | |||||||||||||||||||||||||||||
| Segment interest expense | — | (2) | — | — | (4) | — | |||||||||||||||||||||||||||||
| Income (loss) from continuing operations before income taxes (1) | $ | 182 | $ | (116) | $ | (80) | $ | 407 | $ | (26) | $ | (175) | |||||||||||||||||||||||
| Three Months Ended September 30, | Nine Months Ended September 30, | ||||||||||||||||||||||
| 2022 | 2021 | 2022 | 2021 | ||||||||||||||||||||
| Total segment income (loss) from continuing operations before income taxes | $ | (54) | $ | 55 | $ | (14) | $ | 206 | |||||||||||||||
| Corporate interest expense | (9) | (28) | (24) | (95) | |||||||||||||||||||
| Corporate other income | 15 | 1 | 21 | 2 | |||||||||||||||||||
| Loss on extinguishment of debt | — | (15) | — | (17) | |||||||||||||||||||
| Consolidated income (loss) from continuing operations before income taxes | $ | (48) | $ | 13 | $ | (17) | $ | 96 | |||||||||||||||
Certain corporate items are not directly attributable to any of our segments, including loss on extinguishment of debt, interest income earned on our short-term investments included in other income and interest costs on our convertible senior notes included in interest expense. | |||||||||||||||||||||||
| Three Months Ended September 30, | 2021 to 2022 % Change | ||||||||||||||||
| 2022 | 2021 | ||||||||||||||||
| Visits (1) | 2,767 | 2,662 | 4 | % | |||||||||||||
| Average monthly unique users (2) | 236 | 227 | 4 | % | |||||||||||||
| (1) Visits includes visits to the Zillow, Trulia and StreetEasy mobile apps and websites. We measure Zillow and StreetEasy visits with Google Analytics and Trulia visits with Adobe Analytics. | |||||||||||||||||
| (2) Zillow, StreetEasy and HotPads measure unique users with Google Analytics, and Trulia measures unique users with Adobe Analytics. | |||||||||||||||||
| Three Months Ended September 30, | 2021 to 2022 % Change | ||||||||||||||||
| 2022 | 2021 | ||||||||||||||||
| Purchase loan origination volume | $ | 240 | $ | 359 | (33) | % | |||||||||||
| Refinance loan origination volume | 31 | 754 | (96) | % | |||||||||||||
| Total loan origination volume | $ | 271 | $ | 1,113 | (76) | % | |||||||||||