Organization and Description of Business	9 Months Ended
Organization and Description of Business	Sep. 30, 2023
Accounting Policies [Abstract]
Organization and Description of Business	Organization and Description of Business Zillow Group is reimagining real estate to make home a reality for more and more people. As the most visited real estate website in the United States, Zillow and its affiliates help people find and get the home they want by connecting them with digital solutions, great partners, and easier buying, selling, financing and renting experiences. Our portfolio of affiliates, subsidiaries and brands includes Zillow Premier Agent, Zillow Home Loans, our mortgage originations business and affiliate lender, Zillow Rentals, Trulia, StreetEasy, HotPads and Out East. In addition, Zillow Group provides a comprehensive suite of marketing software and technology solutions for the real estate industry, including Spruce, Mortech, New Home Feed and ShowingTime+. In the fourth quarter of 2021, we began to wind down the operations of Zillow Offers, our iBuying business which purchased and sold homes directly in markets across the country. The wind down was completed in the third quarter of 2022, and we have presented the financial results of Zillow Offers as discontinued operations in our condensed consolidated statements of operations for the three and nine months ended September 30, 2022. No assets or liabilities were classified as discontinued operations as of December 31, 2022. See Note 3 for additional information. Certain Significant Risks and Uncertainties We operate in a dynamic industry and, accordingly, can be affected by a variety of factors. For example, we believe that changes in any of the following areas could have a significant negative effect on us in terms of our future financial position, results of operations or cash flows: current and future health and stability of the economy and United States residential real estate industry, including changes in inflationary conditions, interest rates, housing availability and affordability, labor shortages and supply chain issues; our ability to manage advertising inventory and pricing and maintain relationships with our real estate partners; our compliance with multiple listing service rules and requirements to access and use listing data, and to maintain or establish relationships with listings and data providers; our investment of resources to pursue strategies and develop new products and services that may not prove effective or that are not attractive for customers and real estate partners or that do not allow us to compete successfully; our ability to operate and grow Zillow Home Loans, our mortgage origination business and affiliate lender, including the ability to obtain or maintain sufficient financing and resell originated mortgages on the secondary market; the duration and impact of natural disasters and other catastrophic events (including public health crises) on our ability to operate, demand for our products or services or general economic conditions; outcomes of legal proceedings; our ability to attract and retain a highly skilled workforce; protection of Zillow’s information and systems against security breaches or disruptions in operations; reliance on third-party services to support critical functions of our business; protection of our brand and intellectual property; and changes in laws or government regulation affecting our business, among other things.