DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES (Policies)	6 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]
Description of Business	Description of Business Opendoor Technologies Inc. (the “Company” and “Opendoor”) including its consolidated subsidiaries and certain variable interest entities (“VIEs”), is a managed marketplace for residential real estate. By leveraging our centralized platform, Opendoor is working towards a future that enables sellers and buyers of residential real estate to experience a simple and certain transaction that is dramatically improved from the traditional process. The Company was incorporated in Delaware on December 30, 2013.
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to generally accepted accounting principles in the United States of America (“GAAP”). The condensed consolidated financial statements as of June 30, 2023 and December 31, 2022 and for the three and six month periods ended June 30, 2023 and 2022 include the accounts of Opendoor, its wholly owned subsidiaries and VIEs where the Company is the primary beneficiary. The accompanying unaudited condensed consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary to a fair statement of the results for the interim periods presented. All significant intercompany accounts and transactions have been eliminated in the condensed consolidated financial statements herein. The Company was formed through a business combination with Social Capital Hedosophia Holdings Corp. II (“SCH”), a Cayman Islands exempted company formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”). The Business Combination, pursuant to which Opendoor Labs Inc. became a wholly owned subsidiary of SCH and SCH changed its name from “Social Capital Hedosophia Holdings Corp. II” to “Opendoor Technologies Inc.”, was completed on December 18, 2020, and was accounted for as a reverse recapitalization, in accordance with GAAP. The accompanying interim condensed consolidated financial statements and these related notes should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022 (“Annual Report”) filed on February 23, 2023.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that have a material impact on the amounts reported in the financial statements and accompanying notes. Significant estimates, assumptions and judgments made by management include, among others, the determination of the fair value of common stock, share-based awards, and inventory valuation adjustment. Management believes that the estimates and judgments upon which management relies are reasonable based upon information available to management at the time that these estimates and judgments are made. To the extent there are material differences between these estimates, assumptions and judgments and actual results, the carrying values of the Company's assets and liabilities and the results of operations will be affected. The health of the residential housing market and interest rate environment have introduced additional uncertainty with respect to judgments, estimates and assumptions, which may materially impact the estimates previously listed, among others.
Significant Risks and Uncertainties	Significant Risks and Uncertainties The Company operates in a dynamic industry and, accordingly, can be affected by a variety of factors. For example, the Company believes that changes in any of the following areas could have a significant negative effect on the Company in terms of its future financial position, results of operations or cash flows: public health crises, like the COVID-19 pandemic; its rate of revenue growth; its ability to manage inventory; engagement and usage of its products; the effectiveness of its investment of resources to pursue strategies; competition in its market; the stability of the residential real estate market; the impact of interest rate changes on demand for and pricing of its products and on the cost of capital; changes in technology, products, markets or services by the Company or its competitors; its ability to maintain or establish relationships with listings and data providers; its ability to obtain or maintain licenses and permits to support its current and future businesses; actual or anticipated changes to its products and services; changes in government regulation affecting its business; the outcomes of legal proceedings; natural disasters and catastrophic events; scaling and adaptation of existing technology and network infrastructure; its management of its growth; its ability to attract and retain qualified employees and key personnel; its ability to successfully integrate and realize the benefits of its past or future strategic acquisitions or investments; the protection of customers’ information and other privacy concerns; the protection of its brand and intellectual property; and intellectual property infringement and other claims, among other things.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments, which potentially subject the Company to concentrations of credit risk, consist primarily of cash and cash equivalents, restricted cash, and investments in marketable securities. The Company places cash and cash equivalents and investments with major financial institutions, which management assesses to be of high credit quality, in order to limit exposure of the Company’s investments.
Convertible Senior Notes	Convertible Senior Notes The 0.25% convertible senior notes due in 2026 (the “2026 Notes”) issued by the Company in August 2021 are accounted for wholly as debt. The 2026 Notes have an initial carrying value equal to the net proceeds from issuance. Issuance costs associated with the 2026 Notes are amortized over the term using the effective interest method. Conversions are settled through payment of cash or a combination of cash and stock, at the Company’s option. Upon conversion, the carrying amount of the 2026 Notes, including any unamortized debt issuance costs, is reduced by cash paid, with any difference being reflected as a change in equity. There will not be any gains or losses recognized upon a conversion. Upon extinguishment of any portion of the 2026 Notes, the difference between the repurchase price of the extinguished notes and the respective net carrying amount is recorded as a gain or loss in Gain on extinguishment of debt in the condensed consolidated statements of operations. See “Note 5 — Credit Facilities and Long-Term Debt” for details on the partial repurchase of the Company's convertible notes that occurred in the period.
Impairment of Long-Lived Assets	Impairment of Long-Lived AssetsLong-lived assets, such as property and equipment and definite-lived intangible assets, among other long-lived assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require a long-lived asset or asset group be tested for possible impairment, the Company first compares undiscounted cash flows expected to be generated by that asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment loss is recognized to the extent the carrying amount of the underlying asset exceeds its fair value.

DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES (Policies)

6 Months Ended

Jun. 30, 2023

Opendoor Technologies Inc. (the “Company” and “Opendoor”) including its consolidated subsidiaries and certain variable interest entities (“VIEs”), is a managed marketplace for residential real estate. By leveraging our centralized platform, Opendoor is working towards a future that enables sellers and buyers of residential real estate to experience a simple and certain transaction that is dramatically improved from the traditional process. The Company was incorporated in Delaware on December 30, 2013.

Basis of Presentation and Principles of Consolidation

The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to generally accepted accounting principles in the United States of America (“GAAP”). The condensed consolidated financial statements as of June 30, 2023 and December 31, 2022 and for the three and six month periods ended June 30, 2023 and 2022 include the accounts of Opendoor, its wholly owned subsidiaries and VIEs where the Company is the primary beneficiary. The accompanying unaudited condensed consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary to a fair statement of the results for the interim periods presented. All significant intercompany accounts and transactions have been eliminated in the condensed consolidated financial statements herein.

The Company was formed through a business combination with Social Capital Hedosophia Holdings Corp. II (“SCH”), a Cayman Islands exempted company formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”). The Business Combination, pursuant to which Opendoor Labs Inc. became a wholly owned subsidiary of SCH and SCH changed its name from “Social Capital Hedosophia Holdings Corp. II” to “Opendoor Technologies Inc.”, was completed on December 18, 2020, and was accounted for as a reverse recapitalization, in accordance with GAAP.

The accompanying interim condensed consolidated financial statements and these related notes should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022 (“Annual Report”) filed on February 23, 2023.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that have a material impact on the amounts reported in the financial statements and accompanying notes. Significant estimates, assumptions and judgments made by management include, among others, the determination of the fair value of common stock, share-based awards, and inventory valuation adjustment. Management believes that the estimates and judgments upon which management relies are reasonable based upon information available to management at the time that these estimates and judgments are made. To the extent there are material differences between these estimates, assumptions and judgments and actual results, the carrying values of the Company's assets and liabilities and the results of operations will be affected. The health of the residential housing market and interest rate environment have introduced additional uncertainty with respect to judgments, estimates and assumptions, which may materially impact the estimates previously listed, among others.

Significant Risks and Uncertainties

The Company operates in a dynamic industry and, accordingly, can be affected by a variety of factors. For example, the Company believes that changes in any of the following areas could have a significant negative effect on the Company in terms of its future financial position, results of operations or cash flows: public health crises, like the COVID-19 pandemic; its rate of revenue growth; its ability to manage inventory; engagement and usage of its products; the effectiveness of its investment of resources to pursue strategies; competition in its market; the stability of the residential real estate market; the impact of interest rate changes on demand for and pricing of its products and on the cost of capital; changes in technology, products, markets or services by the Company or its competitors; its ability to maintain or establish relationships with listings and data providers; its ability to obtain or maintain licenses and permits to support its current and future businesses; actual or anticipated changes to its products and services; changes in government regulation affecting its business; the outcomes of legal proceedings; natural

disasters and catastrophic events; scaling and adaptation of existing technology and network infrastructure; its management of its growth; its ability to attract and retain qualified employees and key personnel; its ability to successfully integrate and realize the benefits of its past or future strategic acquisitions or investments; the protection of customers’ information and other privacy concerns; the protection of its brand and intellectual property; and intellectual property infringement and other claims, among other things.

Concentrations of Credit Risk

Financial instruments, which potentially subject the Company to concentrations of credit risk, consist primarily of cash and cash equivalents, restricted cash, and investments in marketable securities. The Company places cash and cash equivalents and investments with major financial institutions, which management assesses to be of high credit quality, in order to limit exposure of the Company’s investments.

Convertible Senior Notes

The 0.25% convertible senior notes due in 2026 (the “2026 Notes”) issued by the Company in August 2021 are accounted for wholly as debt. The 2026 Notes have an initial carrying value equal to the net proceeds from issuance. Issuance costs associated with the 2026 Notes are amortized over the term using the effective interest method. Conversions are settled through payment of cash or a combination of cash and stock, at the Company’s option. Upon conversion, the carrying amount of the 2026 Notes, including any unamortized debt issuance costs, is reduced by cash paid, with any difference being reflected as a change in equity. There will not be any gains or losses recognized upon a conversion. Upon extinguishment of any portion of the 2026 Notes, the difference between the repurchase price of the extinguished notes and the respective net carrying amount is recorded as a gain or loss in Gain on extinguishment of debt in the condensed consolidated statements of operations. See “Note 5 — Credit Facilities and Long-Term Debt” for details on the partial repurchase of the Company's convertible notes that occurred in the period.

Impairment of Long-Lived Assets

Impairment of Long-Lived AssetsLong-lived assets, such as property and equipment and definite-lived intangible assets, among other long-lived assets, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require a long-lived asset or asset group be tested for possible impairment, the Company first compares undiscounted cash flows expected to be generated by that asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment loss is recognized to the extent the carrying amount of the underlying asset exceeds its fair value.