Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries and entities consolidated under the variable interest entity model, and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). All intercompany balances and transactions have been eliminated in consolidation. Segments Operating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources to an individual segment and in assessing performance. The Company’s Chief Executive Officer is the Company’s CODM. The CODM reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance. As such, the Company has determined that it operates in one reportable segment. See Note 3 – "Revenue" for revenue by geography. Long-lived assets, which consist of property and equipment, net and operating lease right-of-use assets, located outside of the United States were $28 million and $124 million a s of December 31, 2021 and 2022, respectively. Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires management to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the financial statements, as well as the reported amounts of revenue and expenses during the periods presented. Estimates include, but are not limited to, revenue recognition, allowances for credit losses, gift card breakage, estimated useful lives of property and equipment, capitalized software and website development costs, intangible assets, valuation of stock-based compensation, valuation of investments and other financial instruments including valuation of investments without readily determinable fair values, valuation of acquired intangible assets and goodwill, the incremental borrowing rate applied in lease accounting, insurance reserves, loss contingencies, and income and indirect taxes. Actual results could differ from these estimates. Business Combinations The Company accounts for business combinations using the acquisition method of accounting, which requires, among other things, allocation of the fair value of purchase consideration to the tangible and intangible assets acquired and liabilities assumed at their estimated fair values on the acquisition date. The excess of the fair value of purchase consideration over the values of these identifiable assets and liabilities is recorded as goodwill. When determining the fair value of assets acquired and liabilities assumed, management makes significant estimates and assumptions, especially with respect to the valuation of intangible assets. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, not to exceed one year from the date of acquisition, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill if new information is obtained related to facts and circumstances that existed as of the acquisition date. Upon the conclusion of the measurement period or final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are reflected in the consolidated statements of operations. Acquisition costs, such as legal and consulting fees, are expensed as incurred. Cash, Cash Equivalents, and Restricted Cash Cash includes demand deposits with banks or financial institutions as well as cash in transit from payment processors. Cash equivalents include short-term, highly liquid investments with original maturities of three months or less and their carrying values approximate fair value due to their short-term maturities. Restricted cash consists of collateral provided for letters of credit established primarily for real estate leases and insurance policies. As of December 31, 2021 and 2022, the restricted cash balances were $2 million and $211 million, respectively. Marketable Securities Marketable securities primarily consist of commercial paper, U.S. government agency securities, U.S. Treasury securities, and corporate bonds. The Company invests in a diversified portfolio of marketable securities and limits the concentration of its investment in any particular security. Securities with maturities greater than three months, but less than one year, are included in current assets and securities with maturities greater than one year are included in non-current assets on the consolidated balance sheets. All marketable securities are classified as available-for-sale and reported at fair value. If the estimated fair value of an available-for-sale debt security is below its amortized cost basis, then the Company evaluates the security for impairment. The Company considers its intent to sell the security or whether it is more likely than not that it will be required to sell the security before recovery of its amortized basis. If either of these criteria are met, the debt security’s amortized cost basis is written down to fair value through other income (expense), net in the consolidated statements of operations. If neither of these criteria are met, the Company evaluates whether unrealized losses have resulted from a credit loss or other factors. The factors considered in determining whether a credit loss exists can include the extent to which fair value is less than the amortized cost basis, changes to the rating of the security by a rating agency, any adverse conditions specifically related to the security, as well as other factors. An impairment relating to credit losses is recorded through an allowance for credit losses reported in other income (expense), net in the consolidated statements of operations. The allowance is limited by the amount that the fair value of the debt security is below its amortized cost basis. When a credit loss exists, the Company compares the present value of cash flows expected to be collected from the debt security with the amortized cost basis of the security to determine what allowance amount, if any, should be recorded. As of December 31, 2021 and 2022, no allowance of credit losses related to marketable securities was recorded. Unrealized losses not resulting from credit losses are recorded through accumulated other comprehensive income (loss). Funds Held at Payment Processors Funds held at payment processors represent cash due from the Company’s payment processors for transactions with merchants and consumers, as well as funds transferred to payment processors for Dasher payout. Accounts Receivable, Net and Allowance for Credit Losses Accounts receivable, net primarily represents receivables from merchants that were generated through the Company’s Drive offering. The Company maintains an allowance for credit losses, which is based on the Company’s assessment of the collectability of accounts. The Company regularly reviews the adequacy of the allowance for credit losses on a collective basis by considering the age of each outstanding invoice, each customer’s expected ability to pay and collection history, current market conditions, and reasonable and supportable forecasts of future economic conditions to determine whether the allowance is appropriate. Accounts receivable deemed uncollectible are charged against the allowance for credit losses when identified. Property and Equipment, Net Property and equipment are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the related assets. The useful lives are as follows: Estimated Useful Life Equipment for merchants 2 years Computer equipment and software 2 years Office equipment 5 years Capitalized software and website development costs 2 years Leasehold improvements Shorter of estimated useful life or lease term Maintenance and repair costs are charged to expense as incurred. Upon disposal of a fixed asset, the Company records a gain or loss based on the difference between the proceeds received and the net book value of the disposed asset. Disposals were not material for the years ended December 31, 2020, 2021 and 2022. Intangible Assets, Net Intangible assets are recorded at fair value as of the date of acquisition and amortized on a straight-line basis over their estimated useful lives. The Company reviews identifiable amortizable intangible assets for impairment under the long-lived asset model described under “Impairment of Long-Lived Assets” below. Goodwill Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired in a business combination. Goodwill is not amortized, but is tested for impairment at least annually or more frequently if events or changes in circumstances indicate that the asset may be impaired. The Company’s impairment tests are based on a single operating segment and reporting unit structure. If the carrying value of the reporting unit exceeds its fair value, an impairment charge is recognized for the excess of the carrying value of the reporting unit over its fair value. The Company conducted its annual goodwill impairment test during the fourth quarter of 2022 and determined that the fair value of the reporting unit significantly exceeded its carrying value. No impairment charge was recorded in any of the periods presented in the accompanying consolidated financial statements. Non-Marketable Equity Securities Non-marketable equity securities which the Company does not have a controlling financial interest in and does not exercise significant influence over the investee are recorded at cost and adjusted for observable transactions for same or similar investments of the same issuer (referred to as the measurement alternative) or impairment. The carrying value is not adjusted for the Company’s non-marketable equity securities if there are no observable price changes in a same or similar security from the same issuer or if there are no identified events or changes in circumstances that may indicate impairment. Capitalized Software and Website Development Costs The Company incurred costs relating to the development of the Company’s technology platform, which includes Dasher and merchant tools, mobile apps, and website and content development. Software development costs related to software acquired, developed, or modified solely to meet the Company’s internal requirements, with no substantive plans to market such software at the time of development, are capitalized during the application development stage of the project. Costs incurred during the preliminary planning and evaluation stage of the project and during the post implementation operational stage are expensed as incurred. Costs to develop the Company’s technology platform are capitalized when preliminary development efforts are successfully completed, management has authorized and committed project funding, and it is probable that the project will be completed and the software will be used as intended. Costs incurred for enhancements that are expected to result in additional functionality are capitalized and expensed over the estimated useful life of the upgrades on a per project basis. Impairment of Long-Lived Assets The Company evaluates its long-lived assets or asset groups for indicators of possible impairment by comparison of the carrying amount to future net undiscounted cash flows expected to be generated by such asset or asset group when events or changes in circumstances indicate the carrying amount of an asset or asset group may not be recoverable. Should an impairment exist, the impairment loss would be measured based on the excess carrying value of the asset or asset group over the asset’s or asset group’s fair value generally determined by estimates of future discounted cash flows. Assets to be disposed of are reported at the lower of their carrying amount or fair value less costs to sell. During the years ended December 31, 2020, 2021 and 2022, the Company recognized impairment charges of $11 million, $1 million and $2 million, respectively, related to an operating lease right-of-use asset associated with its former headquarters, which the Company subleased to another company. Insurance Reserves The Company utilizes third-party insurance which include retained insurance deductibles to insure costs including auto liability related to both bodily injury and physical damage, and uninsured and underinsured motorists up to a certain dollar retention limit. The recorded insurance reserves reflect the estimated cost for claims incurred but not paid and claims that have been incurred but not yet reported. The estimate of the Company’s ultimate deductible obligation utilizes actuarial techniques applied to historical claim and loss experience. Given its limited operational history, the Company utilizes assumptions based on actuarial judgments with consideration toward relevant industry claim and loss development factors, which includes the development time frame and settlement patterns, and expected loss rates. Reserves are periodically reviewed and adjusted as necessary as experience develops or new information becomes known. However, ultimate results may differ from the Company’s estimates, which could result in losses over the Company’s reserved amounts. During the years ended December 31, 2020, 2021 and 2022, the Company recorded additions to the insurance reserves of $63 million, $134 million and $359 million, respectively. The Company’s retained insurance deductibles reserves as of December 31, 2022 was $418 million. Loss Contingencies The Company is involved in various lawsuits, claims, investigations, and proceedings that arise in connection with its business. Certain of these matters include speculative claims for substantial or indeterminate amounts of damages. The Company records a liability in accrued expenses and other current liabilities on the consolidated balance sheets when the Company believes that it is both probable that a loss has been incurred and the amount or range can be reasonably estimated. The Company discloses material contingencies when it believes that a loss is not probable but reasonably possible. Significant judgment is required to determine both probability and the estimated amount. The Company reviews these provisions on a quarterly basis and adjusts these provisions accordingly to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information. Sales and Indirect Taxes The Company records sales and indirect tax liabilities when they become probable and the amount can be reasonably estimated. Sales and indirect tax liabilities are included in accrued expenses and other current liabilities on the consolidated balance sheets. Accumulated Other Comprehensive Income (Loss) Accumulated other comprehensive income (loss) primarily consists of foreign currency translation adjustments and unrealized gains and losses on available-for-sale marketable securities. The financial statements of the Company’s foreign subsidiaries are translated from their functional currency, which is typically the local currency, into U.S. dollars. Assets and liabilities are translated at period end rates of exchange, and revenue and expenses are translated using average monthly exchange rates. The resulting gain or loss is included in accumulated other comprehensive income (loss) on the consolidated balance sheets. Available-for-sale securities are reported at fair value, with unrealized gains and losses included as a separate component of stockholders’ equity within accumulated other comprehensive income (loss). Stock-Based Compensation The fair value of restricted stock and RSUs is estimated based on the fair value of the Company’s common stock on the date of grant. Prior to November 2020, RSUs granted by the Company vest upon the satisfaction of both a service-based vesting condition, which is typically four years, and a liquidity event-related performance vesting condition. The liquidity event-related performance vesting condition was achieved upon the consummation of the Company's IPO, and the Company recorded a cumulative stock-based compensation expense of $279 million as of the IPO date for those RSUs for which the service-based vesting condition has been satisfied. Stock-based compensation related to the remaining service-based period after the liquidity event-related performance vesting condition was satisfied will be recorded over the remaining requisite service period using the accelerated attribution method. Since November 2020, with the exception of the CEO Performance Award and options assumed via acquisition (as discussed further in Note 12 - "Common Stock"), the Company only granted RSUs that vest upon the satisfaction of a service-based vesting condition and the compensation expense for these RSUs is recognized on a straight-line basis over the requisite service period. For the CEO Performance Award (as defined below) that includes a market condition, the fair value of the award was determined using a Monte Carlo simulation model. The associated stock-based compensation is recorded over the derived service period, using the accelerated attribution method. If the stock price goals are met sooner than the derived service period, the Company will adjust the stock-based compensation expense to reflect the cumulative expense associated with the vested award. Provided that Tony Xu continues to be the Chief Executive Officer of the Company, stock-based compensation expense is recognized over the requisite service period, regardless of whether the stock price goals are achieved. Prior to the IPO, the fair value of the shares of common stock underlying the stock options and RSUs has historically been determined by the Company’s board of directors as there is no public market for the underlying common stock. The Company’s board of directors determined the fair value of the Company’s common stock by considering a number of objective and subjective factors including: contemporaneous third-party valuations of its common stock, the valuation of comparable companies, sales of the Company’s common and redeemable convertible preferred stock to outside investors in arms-length transactions (including the IPO), the Company’s operating and financial performance, the lack of marketability, and the general and industry specific economic outlook, amongst other factors. After the completion of the IPO, the fair value of the Company's Class A common stock is determined based on the New York Stock Exchange (the "NYSE") closing price on the date of grant. The Company records forfeitures when they occur for all share-based payment awards. Provision for Income Taxes The Company accounts for income taxes using the asset and liability method. Under this method, deferred income tax assets and liabilities are recorded based on the estimated future tax effects of differences between the financial statement and income tax basis of existing assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. The Company recognizes the effect on deferred income taxes of a change in tax rates in the period that includes the enactment date. The Company records a valuation allowance to reduce its deferred tax assets to the net amount that it believes is more-likely-than-not to be realized. Management considers all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income, and ongoing tax planning strategies in assessing the need for a valuation allowance. The Company operates in various tax jurisdictions and is subject to audit by tax authorities. The Company recognizes the tax benefit of an uncertain tax position only if it is more-likely-than-not that the position is sustainable upon examination by the taxing authority, based on the technical merits. The tax benefit recognized is measured as the largest amount of benefit which is greater than 50% likely to be realized upon settlement with the taxing authority. The Company recognizes interest accrued and penalties related to unrecognized tax benefits in the provision for income taxes. Fair Value The Company measures certain assets and liabilities at fair value on a recurring basis based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis, whereby inputs used in valuation techniques, are assigned a hierarchical level. The following are the hierarchical levels of inputs to measure fair value: Level 1 Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 Inputs reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Unobservable inputs reflecting the Company’s own assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. The carrying amounts of certain of the Company’s financial instruments, which include cash equivalents, accounts receivable, accounts payable, and accrued expenses and other current liabilities approximate their fair values due to their short maturities. Concentration of Credit Risk The Company’s cash, cash equivalents, marketable securities, funds held at payment processors, and accounts receivable are potentially subject to concentration of credit risk. Although the Company deposits its cash with multiple financial institutions, the deposits, at times, may exceed federally insured limits. Management believes that the institutions are financially stable and, accordingly, minimal credit risk exists. The Company limits purchases of debt securities to investment-grade securities. The Company has not experienced any significant credit losses historically. The Company relies on a limited number of third parties to provide payment processing services (“payment processors”) including collecting amounts due from end-users and processing Dasher payouts. Payment processors are financial institutions or credit card companies that the Company believes are of high credit quality. The Company retains the risk of collecting such amounts from the payment processors, which are included in funds held at payment processors for the unsettled portion at each period end. The portion of the payments to be remitted to Dashers and merchants is included in accrued expenses and other current liabilities. Although the Company pre-authorizes forms of payment to mitigate its exposure, the Company absorbs all credit card losses. Accounts receivable, net primarily represents receivables from merchants that were generated through the Company’s Drive offering. As of December 31, 2021, two entities in dividually accounted for 15% and 14% of accounts receivable, net, respectively. As of December 31, 2022, one entity in dividually accounted for 14% of accounts receivable, net. No customer accounted for 10% or more of revenue for the years ended December 31, 2020, 2021, and 2022. Revenue Recognition The Company recognizes revenue in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with its Customers. The Company generates a substantial majority of its revenue from orders completed through its Marketplaces and the related commissions charged to partner merchants and fees charged to consumers. A partner merchant represents a merchant that has entered into a contractual agreement with the Company. Revenue from the Marketplaces is recognized at the point in time when the consumer obtains control of the merchant’s products. The Company also generates revenue from membership fees paid by consumers for DashPass and Wolt+, which is recognized as part of the Marketplaces . Revenue generated from the Company’s DashPass and Wolt+ memberships is recognized on a ratable basis over the contractual period, which is generally one month to one year depending on the type of membership purchased by the consumer. In addition, the Company also generates revenue from its Drive offering by collecting per-order fees from merchants that use its local commerce platform to arrange for delivery services that fulfill demand generated through their own channels. Revenue from Drive is recognized at the point in time when the consumer obtains control of the merchant’s products. When determining the appropriate accounting for the fees collected in exchange for the use of the Company’s local commerce platform, the Company considered its contractual arrangements with the parties involved as well as its customary business practices. Under the Company’s agreements with partner merchants, the Company agrees to a commission to be earned as a percentage of the total dollar value of goods ordered. When a consumer signs up to use the Company’s local commerce platform, the consumer agrees to be charged certain fees, at the time an order is placed, in exchange for use of the platform. The Company has concluded that a contract exists between the Company and a partner merchant when the partner merchant accepts each consumer’s order, and a contract exists between the Company and a consumer when the consumer places the order and requests delivery services. The duration of a contract is typically equal to the time between when the order is placed and a Dasher picks up the food from the merchant. Contracts including variable consideration with partner merchants were not material for the periods presented. The Company’s local commerce platform facilitates orders between consumers and partner merchants. Separately, the Company’s platform arranges for consumers to obtain delivery service from Dashers. The Company has determined that the order facilitation service and delivery facilitation service are distinct performance obligations and has therefore considered whether it is a principal or agent separately for each of these items. The order facilitation service and the delivery facilitation service are distinct given that the consumer can benefit from each item separately. Further, the order facilitation service and delivery facilitation service are separately identifiable as the nature of the promises are to transfer the order facilitation service and delivery facilitation service individually, rather than as a combined item. Principal vs. Agent Considerations Judgment is required in determining whether the Company is the principal or the agent in transactions with partner merchants, consumers, and Dashers. As it relates to the accounting for order facilitation services and delivery facilitation services, the Company evaluated whether to present revenue on a gross versus net basis based on whether it controls each specified good or service before it is provided to the consumer in Marketplace transactions. With respect to order facilitation services, the Company has determined it is an agent for partner merchants in facilitating the sale of products to the consumer through its Marketplaces. The consumer accesses the Company’s local commerce platform to identify merchants and places an order for merchants’ products. These orders are picked up from partner merchants and delivered to consumers by Dashers. The Company does not control the products prior to them being transferred to the consumer as it neither has the ability to redirect the products to another consumer nor does it obtain any economic benefit from the products. With respect to the vast majority of its delivery facilitation services, the Company has determined it is acting as an agent for the consumer in facilitating the delivery of products by connecting consumers with Dashers. As the Company’s role with the delivery facilitation service is only to arrange for a delivery opportunity to be offered to prospective Dashers, it does not control how the delivery service is ultimately provided to the consumer. In the vast majority of its transactions with end-users, the Company is an agent in facilitating the sale of products and delivery services, thus the Company reports revenue on a net basis, reflecting amounts collected from consumers, less amounts remitted to merchants and Dashers. Dasher payout represents the amounts paid to Dashers for deliveries, including incentives and tips, except for certain referral bonuses. From time to time, Dashers may request an earlier payment settlement in exchange for a reduction in Dasher payout. The amounts payable to merchants and Dashers are included in accrued expenses and other current liabilities on the consolidated balance sheets as payments are typically settled on a weekly basis. The Company recognizes revenue from both partner merchants and consumers for each successfully completed transaction. The Company satisfies its performance obligations to a partner merchant when there is a successful sale of the merchant’s products and meets its performance obligation to a consumer once the Dasher has picked up the products from the merchant for delivery to the consumer. The Company also provides value-add services to merchants. These services are generally considered separate performance obligations and revenue is recognized over the period in which services are provided. Revenue generated from such services is not material in all periods presented. Gift Cards The Company sells gift cards to consumers that can be redeemed through the Marketplaces. Th ose gift cards have no expiration date and administrative fees are not charged on unused gift cards. In prior periods, with limited history as to consumers' redemption patterns, proceeds from the sale of gift cards were fully deferred and recorded as contract liabilities until consumers used the card to place orders on its platform. When gift cards are redeemed, revenue is recognized on a net basis as the difference between the amounts collected from consumers less amounts remitted to merchants and Dashers. During the year ended December 31, 2021, the Company concluded that it had developed sufficient historical evidence regarding the pattern of consumer redemptions of gift cards to have the ability to estimate the portion of outstanding gift cards that will never be redeemed (“breakage”) and for which there is no legal obligation to remit the value of the unredeemed gift cards to the relevant jurisdiction as unclaimed or abandoned property. The Company recognizes the breakage amounts as revenue, proportionate to the pattern of revenue recognition for the gift card redemptions. The Company recorded $48 million and $47 million of gift card breakage revenue during the years ended December 31, 2021 and 2022, respectively. Estimating future breakage rates requires judgment based on current and historical patterns of redemption, and the actual breakage rates may vary from the estimate. Refunds and Credits From time to time the Company issues credits or refunds to merchants and consumers to ameliorate issues that may arise with orders. The Company accounts for such refunds as variable consideration and therefore records the amount of each refund or credit issued as a reduction of revenue. Incentive Programs The Company offers incentives to attract consumers and Dashers to use its local commerce platform. Consumers typically receive credits or discounted delivery fees while D |