Overview and Summary of Significant Accounting Policies | Overview and Summary of Significant Accounting Policies Overview and Organization PayPal Holdings, Inc. (“PayPal,” the “Company,” “we,” “us,” or “our”) was incorporated in Delaware in January 2015 and is a leading technology platform and digital payments company that enables digital and mobile payments on behalf of consumers and merchants worldwide. PayPal is committed to democratizing financial services and empowering people and businesses to join and thrive in the global economy. Our goal is to enable our consumers and merchants to manage and move their money anywhere in the world, anytime, on any platform and using any device. We also facilitate person-to-person payments through our PayPal, Venmo, and Xoom products. Our combined payment solutions, including our PayPal, PayPal Credit, Braintree, Venmo, Xoom, and iZettle products, compose our proprietary Payments Platform. The terms “we,” “our,” “us,” “the Company,” and “PayPal” mean PayPal Holdings, Inc. and, unless otherwise expressly stated or the context requires, its subsidiaries. We operate globally and in a rapidly evolving regulatory environment characterized by a heightened regulatory focus on all aspects of the payments industry. That focus continues to become even more heightened as regulators on a global basis focus on such important issues as countering terrorist financing, anti-money laundering, privacy, cybersecurity, and consumer protection. Some of the laws and regulations to which we are subject were enacted recently, and the laws and regulations applicable to us, including those enacted prior to the advent of digital and mobile payments, are continuing to evolve through legislative and regulatory action and judicial interpretation. New or changing laws and regulations, including how such laws and regulations are interpreted and implemented, as well as increased penalties and enforcement actions related to non-compliance, could have a material adverse impact on our business, results of operations, and financial condition. Therefore, we monitor these areas closely to design compliant solutions for our customers who depend on us. Significant Accounting Policies Basis of Presentation and Principles of Consolidation The accompanying consolidated financial statements include the financial statements of PayPal and our wholly and majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Investments in entities where we have the ability to exercise significant influence, but not control, over the investee are accounted for using the equity method of accounting. For such investments, our share of the investee's results of operations is included in other income (expense), net on our consolidated statements of income and our investment balance is included in long-term investments on our consolidated balance sheets. Investments in entities where we do not have the ability to exercise significant influence over the investee are accounted for at cost minus impairment, if any, and are adjusted for changes resulting from observable price changes, which are included in other income (expense), net on our consolidated statements of income and our investment balance is included in long-term investments on our consolidated balance sheets. In the opinion of management, these consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for fair presentation of the consolidated financial statements for all periods presented. We have evaluated all subsequent events through the date the financial statements were issued. Certain amounts for prior years have been reclassified to conform to the financial statement presentation as of and for the year ended December 31, 2018 . Use of estimates The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, including those related to provisions for transaction and loan losses, loss contingencies, income taxes, revenue recognition, and the valuation of goodwill and intangible assets. We base our estimates on historical experience and various other assumptions which we believe to be reasonable under the circumstances. Actual results could differ from those estimates. Reclassifications We have reclassified certain operating expenses within the consolidated statements of income. Prior period amounts have been reclassified to conform to this presentation. These changes have no impact on our previously reported consolidated net income for prior periods, including total operating expenses, financial position, or cash flows for any periods presented. The classification changes relate primarily to the combination of costs incurred to develop and operate our Payments Platform into a new caption entitled technology and development. This new caption includes: (a) costs incurred in operating, maintaining, and enhancing our Payments Platform, including network and infrastructure costs, which were previously classified in the customer support and operations caption, and (b) costs incurred in developing new and improving existing products, which were previously classified in the product development caption on our consolidated statements of income. In addition, we have eliminated the presentation of depreciation and amortization expense as a separate financial statement caption by reclassifying these expenses into financial statement captions aligned with the internal organizations that are the primary beneficiaries of the depreciation and amortization of such assets. The following tables present the effects of the changes on the presentation of these operating expenses to the previously reported consolidated statements of income: Year ended December 31, 2018 (In millions) As Reported Adjustments Revised Transaction expense $ 5,581 $ — $ 5,581 Transaction and loan losses 1,274 — 1,274 Customer support and operations 1,482 (75 ) 1,407 Sales and marketing 1,313 1 1,314 Product development 1,071 (1,071 ) — Technology and development — 1,831 1,831 General and administrative 1,451 90 1,541 Depreciation and amortization 776 (776 ) — Restructuring and other charges 309 — 309 Total operating expenses $ 13,257 $ — $ 13,257 Year ended December 31, 2017 (In millions) As Reported Adjustments Revised Transaction expense $ 4,419 $ — $ 4,419 Transaction and loan losses 1,011 — 1,011 Customer support and operations 1,364 (99 ) 1,265 Sales and marketing 1,128 14 1,142 Product development 953 (953 ) — Technology and development — 1,740 1,740 General and administrative 1,155 103 1,258 Depreciation and amortization 805 (805 ) — Restructuring and other charges 132 — 132 Total operating expenses $ 10,967 $ — $ 10,967 Year ended December 31, 2016 (In millions) As Reported Adjustments Revised Transaction expense $ 3,346 $ — $ 3,346 Transaction and loan losses 1,088 — 1,088 Customer support and operations 1,267 (109 ) 1,158 Sales and marketing 969 (3 ) 966 Product development 834 (834 ) — Technology and development — 1,547 1,547 General and administrative 1,028 123 1,151 Depreciation and amortization 724 (724 ) — Total operating expenses $ 9,256 $ — $ 9,256 Cash and cash equivalents Cash and cash equivalents are short-term, highly liquid investments with original maturities of three months or less when purchased and are composed of primarily bank deposits, government and agency securities and commercial paper. Investments Short-term investments include time deposits, government and agency securities and corporate debt securities with original maturities of greater than three months but less than one year when purchased. Government and agency securities and corporate debt securities are classified as available-for-sale and are reported at fair value using the specific identification method. Unrealized gains and losses are excluded from earnings and reported as a component of other comprehensive income (loss), net of related estimated tax provisions or benefits. Long-term investments include corporate debt securities, government and agency securities and equity investments with maturities exceeding one year. Corporate debt securities and government and agency securities are classified as available-for-sale and are reported at fair value using the specific identification method. Unrealized gains and losses are excluded from earnings and reported as a component of other comprehensive income (loss), net of related estimated tax provisions or benefits. We elect to account for foreign currency denominated available-for-sale investments underlying funds receivable and customer accounts, short-term investments and long-term investments under the fair value option as further discussed in “Note 7—Funds Receivable and Customer Accounts” and “Note 8—Investments.” The changes in fair value related to initial measurement and subsequent changes in fair value are included in earnings as a component of other income (expense), net. Our equity investments consist primarily of minority equity interests in companies that are not publicly traded where we do not have the ability to exercise significant influence, or have control over the investee, and are reported in long-term investments on our consolidated balance sheets. For our equity investments that do not have a readily determinable fair value, we measure these equity investments at cost minus impairment, if any, and adjust for changes resulting from observable price changes in orderly transactions for an identical or similar investment in the same issuer (the “Measurement Alternative”). All gains and losses on these investments, realized and unrealized, are recognized in other income (expense), net on our consolidated statements of income. Our investments where we have the ability to exercise significant influence, but not control, over the investee are accounted for as equity method investments, are reported in long-term investments on our consolidated balance sheets and our share of the investee's results of operations is included in other income (expense), net. The equity method investments are subject to periodic testing for other-than-temporary impairment. We assess whether an impairment loss on our Measurement Alternative investments and an other-than-temporary impairment loss on our debt securities and equity method investments has occurred due to declines in fair value or other market conditions. If any impairment is identified for Measurement Alternative investments or impairment is considered other than temporary for our debt securities and equity method investments, we write down the investment to its fair value and record the corresponding charge through other income (expense), net in our consolidated statements of income. With respect to our debt securities, this assessment takes into account the severity and duration of the decline in value, our intent to sell the security, whether it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, and whether we expect to recover the entire amortized cost basis of the security (that is, whether a credit loss exists). Loans and interest receivable, held for sale In November 2017, we reached an agreement to sell our U.S. consumer credit receivables portfolio to Synchrony Bank. Historically, this portfolio was reported as outstanding principal balances, net of any participation interest sold and pro-rata allowances, including unamortized deferred origination costs and estimated collectible interest and fees. Upon approval of the decision from our Board of Directors to sell these receivables, the portfolio was reclassified as held for sale, and recorded at the lower of cost or fair value, determined on an aggregate basis. Following the closing of this transaction in July 2018, Synchrony Bank became the exclusive issuer of the PayPal Credit online consumer financing program in the U.S. We no longer hold an ownership interest in the receivables generated through the program (other than charged off or designated to be charged off receivables) and thus, no longer record these receivables on our consolidated financial statements. PayPal earns a revenue share on the portfolio of consumer receivables owned by Synchrony Bank, which includes both the sold and newly generated receivables, and it is recorded in revenue from other value added services on our consolidated financial statements. This transaction was accounted for as a true sale based on our determination that it met all the necessary criteria for such accounting, including legal isolation for transferred assets, ability of the transferee to pledge or exchange the transferred assets without constraint, and the transfer of control. We also concluded that our continuing involvement in the revenue share arrangement does not invalidate this determination. Loans and interest receivable, held for sale, represents consumer receivables originated under PayPal credit consumer accounts that were subject to the sale agreement with Synchrony Bank. Until the transaction with Synchrony Bank closed, we continued to work with independent chartered financial institutions to extend credit to U.S. consumers using our PayPal credit product. We purchased the related receivables extended by an independent chartered financial institution and were responsible for the related servicing functions. During the years ended December 31, 2018 and 2017 , we purchased approximately $4.7 billion and $8.7 billion , respectively, in U.S. consumer credit receivables. As part of the arrangements we had with the independent chartered financial institutions in the U.S., we sold back a participation interest in the pool of U.S. consumer receivables outstanding under PayPal Credit consumer accounts. For these arrangements, gains or losses on the sale of the participation interest were not material as the carrying amount of the participation interest sold approximated the fair value at time of transfer. However, we had a separate arrangement with certain investors under which we sold to these investors a participation interest in certain U.S. consumer loans receivable that we purchased where the consideration received exceeded the carrying amount of the participation interest sold, which resulted in a gain reflected as net revenues in our consolidated financial statements. The independent chartered financial institution and other investors had no recourse against us related to their participation interests for failure of debtors to pay when due. The participation interests held by the chartered financial institution and other investors had the same priority to the interests held by us and were subject to the same credit, prepayment, and interest rate risk associated with this pool of consumer receivables. All risks of loss were shared pro rata based on participation interests held among all participating stakeholders. We applied a control-oriented, financial-components approach and accounted for the asset transfer as a sale and derecognized the portion of the participation interest for which control had been surrendered. In connection with its purchase of our U.S. consumer credit receivable portfolio, Synchrony Bank also acquired the participation interests in the pool of consumer receivables held by the chartered financial institution and other investors. The terms of our consumer relationships require us to submit monthly bills to the consumer detailing loan repayment requirements. The terms also allow us to charge the consumer interest and fees in certain circumstances. Due to the relatively small dollar amount of individual loans and interest receivable, we do not require collateral on these balances. Loans and interest receivable, net Loans and interest receivable, net represents merchant receivables originated under our PayPal Working Capital (“PPWC”) product and PayPal Business Loan (“PPBL”) product and consumer loans not classified as held for sale. In the U.S., we partner with independent chartered financial institutions that extend credit to the consumer (up through the completion of the sale of our U.S. consumer credit portfolio to Synchrony Bank), or to the merchant using our PPWC product or PPBL product, and purchase the related receivables extended by the independent chartered financial institutions. During the years ended December 31, 2018 and 2017 , we purchased approximately $3.3 billion and $1.5 billion , respectively, in merchant receivables. For our consumer credit products outside the U.S., we extend credit through our Luxembourg banking subsidiary. For our merchant credit products outside the U.S., we extend working capital advances in the U.K. and loans in Germany through our Luxembourg banking subsidiary, and we extend working capital loans in Australia through an Australian subsidiary. As part of our arrangements with independent chartered financial institutions in the U.S., we sell back a participation interest in the pool of merchant receivables. For these arrangements, gains or losses on the sale of the participation interest are not material as the carrying amount of the participation interest sold approximates the fair value at time of transfer. The independent chartered financial institution has no recourse against us related to their participation interests for failure of debtors to pay when due. The participation interests held by the chartered financial institution and other investors have the same priority to the interests held by us and are subject to the same credit, prepayment, and interest rate risk associated with this pool of merchant receivables. All risks of loss are shared pro rata based on participation interests held among all participating stakeholders. We apply a control-oriented, financial-components approach and account for the asset transfer as a sale and derecognize the portion of the participation interest for which control has been surrendered. Loans, advances, and interest and fees receivable are reported at their outstanding principal balances, net of any participation interest sold and pro rata allowances, including unamortized deferred origination costs and estimated collectible interest and fees. We maintain the servicing rights for the entire pool of consumer and merchant receivables outstanding and receive a fee approximating the fair value for servicing the assets underlying the participation interest sold. Allowance for loans and interest receivable The allowance for loans and interest receivable represents management’s estimate of incurred losses inherent in our portfolio of loans and receivables, net. Increases to the allowance for loans receivables are reflected as a component of transaction and loan losses in our consolidated financial statements. The evaluation process to assess the adequacy of allowances is subject to numerous estimates and principle judgments. For our consumer loans receivable not classified as held for sale, the allowance is primarily based on forecasted principal balance delinquency rates (“roll rates”). Roll rates are the percentage of balances which we estimate will migrate from one stage of delinquency to the next based on our historical experience, as well as external factors such as estimated bankruptcies and levels of unemployment. Roll rates are applied to the principal amount of our consumer receivables for each stage of delinquency, from current to 180 days past the payment due date, in order to estimate the principal loans which have incurred losses and are probable to be charged off. We charge off consumer loan receivable balances in the month in which a customer balance becomes 180 days past the payment due date. In connection with our agreement to sell our U.S. consumer credit receivables to Synchrony Bank and the designation of that portfolio as held for sale, in November 2017, we reversed the corresponding allowances against those loans and interest receivable balances. Such allowances on any newly originated U.S. consumer loans and interest receivables, held for sale were not established. Adjustments to the cost basis of this portfolio until the sale was completed, which were primarily driven by charge-offs, were recorded in restructuring and other charges in our consolidated statements of income. For merchant loans and advances receivable, the allowance is primarily based on principal balances, forecasted delinquency rates, and recoveries through the use of a vintage-based loss forecasting model. The determination of delinquency, from current to 180 days past due, for principal balances related to merchant receivables outstanding is based on the current expected or contractual repayment period of the loan or advance and interest or fixed fee as compared to the original expected repayment period. For our PPWC product, there is a general requirement that at least 10% of the original amount of the loan or advance plus the fixed fee must be repaid every 90 days. We calculate the repayment rate of the merchant's future payment volume so that repayment of the loan or advance and fixed fee is expected to generally occur within 9 to 12 months from the date of the loan or advance. On a monthly basis, we recalculate the repayment period based on the repayment activity on the receivable. As such, actual repayment periods are dependent on actual merchant payment processing volumes. For our PPBL product, we receive fixed periodic payments over the contractual term of the loan which generally ranges from 3 to 12 months. We actively monitor receivables with repayment periods greater than the original expected or contractual repayment period. The allowance for loss against interest receivable is primarily determined by applying historical average customer account roll rates to the interest receivable balance in each stage of delinquency to project the value of accounts that have incurred losses and are probable to be charged off. The allowance for fees receivable is primarily based on fee balances, forecasted delinquency rates, and recoveries through the use of a vintage-based loss forecasting model. Increases to the allowance for interest receivable are reflected as a reduction of net revenues in our consolidated statements of income. Increases to the allowance for fees receivable are recognized as a reduction in deferred revenues included in other current liabilities in our consolidated balance sheets. We charge off the receivables under our PPWC product when the repayments are 180 days past our expectation of repayments and the merchant has not made a payment in the last 60 days or when the repayments are 360 days past due regardless of whether the merchant has made a payment within the last 60 days. We charge off the receivables under our PPBL product when the repayments are 180 days past due. Bankrupt accounts are charged off within 60 days for merchants and 90 days for consumers after receipt of notification of bankruptcy. Consumer loans receivable past the payment due date continue to accrue interest until such time as they are charged off. Charge-offs that are recovered are recorded as a reduction to our allowance for loans and interest receivable. Customer accounts We hold all customer balances, both in the U.S. and internationally, as direct claims against us which are reflected on our consolidated balance sheets as a liability classified as amounts due to customers. Certain jurisdictions where PayPal operates require us to hold eligible liquid assets, as defined by the regulators in these jurisdictions, equal to at least 100% of the aggregate amount of all customer balances. Therefore, we restrict the use of the assets underlying the customer balances to meet these regulatory requirements and separately classify the assets as customer accounts in our consolidated balance sheets. We classify the assets underlying the customer balances as current based on their purpose and availability to fulfill our direct obligation under amounts due to customers. In June 2018, the Luxembourg Commission de Surveillance du Secteur Financier (the “CSSF”) agreed that PayPal’s management may designate up to 35% of European customer balances held in our Luxembourg banking subsidiary to be used to extend credit for European and U.S. credit activities. As of December 31, 2018, the cumulative amount approved by management to be designated for credit activities aggregated to $1.5 billion and represented approximately 26% of European customer balances potentially available for corporate use by us as determined by applying financial regulations maintained by the CSSF. On the date PayPal’s management designates the European customer balances held in our Luxembourg banking subsidiary to be used to extend credit, the balances are classified as cash and cash equivalents and no longer classified as customer accounts in our consolidated balance sheets. No additional amount has been designated for corporate usage by management during the year ended December 31, 2018. The remaining assets underlying the customer balances remain separately classified as customer accounts in our consolidated balance sheets. We do not commingle these customer accounts with corporate funds and maintain these assets separately in interest and non-interest bearing bank deposits, time deposits, corporate debt securities, and foreign government and agency securities. See “Note 7—Funds Receivable and Customer Accounts” for additional information related to customer accounts. Accordingly, we have generally presented changes in funds receivable and customer accounts as cash flows from investing activities in our consolidated statements of cash flows based on the nature of the activity underlying our customer accounts. Funds receivable and funds payable Funds receivable and funds payable arise due to the time required to initiate collection from and clear transactions through external payment networks. When customers fund their PayPal account using their bank account or a credit card or debit card, or withdraw funds from their PayPal account to their bank account or through a debit card transaction, there is a clearing period before the cash is received or settled, usually one to three business days for U.S. transactions and generally up to five business days for international transactions. In addition, a portion of our customers' funds are settled directly to their bank account. These funds are also classified as funds receivable and funds payable and arise due to the time required to initiate collection from and clear transactions through external payment networks. These funds are classified differently on our consolidated statements of cash flows as operating activities based on the nature of this activity. Property and equipment Property and equipment consists primarily of computer equipment, software and website development costs, land and buildings and leasehold improvements. Property and equipment are stated at historical cost less accumulated depreciation. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the assets; generally, one to three years for computer equipment and software, including capitalized software and website development costs, three years for furniture and fixtures, up to thirty years for buildings and building improvements, and the shorter of five years or the non-cancelable term of the lease for leasehold improvements. Goodwill and intangible assets Goodwill is tested for impairment at a minimum on an annual basis. Goodwill is tested for impairment at the reporting unit level by first performing a qualitative assessment to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying value. If the reporting unit does not pass the qualitative assessment, then the reporting unit’s carrying value is compared to its fair value. Goodwill is considered impaired if the carrying value of the reporting unit exceeds its fair value. The fair value of the reporting unit is estimated using income and market approaches. The discounted cash flow method, a form of the income approach, uses expected future operating results and a market participant discount rate. The market approach uses comparable company prices and other relevant information generated by market transactions (either publicly traded entities or mergers and acquisitions) to develop pricing metrics to be applied to historical and expected future operating results of the reporting unit. Failure to achieve these expected results, changes in the discount rate or market pricing metrics, may cause a future impairment of goodwill at the reporting unit level. We conducted our annual impairment test of goodwill as of August 31, 2018 and 2017. We determined that no adjustment to the carrying value of goodwill of our reporting unit was required. As of December 31, 2018 , we determined that no events occurred, or circumstances changed from August 31, 2018 through December 31, 2018 that would more likely than not reduce the fair value of the reporting unit below its carrying amount. Intangible assets consist of acquired customer-related intangible assets, marketing related intangibles, developed technology, and other intangible assets. Intangible assets are amortized over the period of estimated benefit using the straight-line method and estimated useful lives ranging from one to eight years . No significant residual value is estimated for intangible assets. Impairment of long-lived assets We evaluate long-lived assets (including intangible assets) for impairment whenever events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable. An asset is considered impaired if its carrying amount exceeds the future net cash flow the asset is expected to generate. Allowance for transaction losses and negative customer balances We are exposed to transaction losses due to credit card and other payment misuse as well as nonperformance of and credit losses from sellers who accept payments through PayPal. We establish an allowance for estimated losses arising from completing customer transactions, such as chargebacks for unauthorized credit card use and merchant-related chargebacks due to non-delivery of goods or services, Automated Clearing House (“ACH”) returns, buyer protection program claims, account takeovers, and account overdrafts. This allowance represents an accumulation of the estimated amounts necessary to provide for transaction losses incurred as of the reporting date, including those which we have not yet identified. The allowance is monitored regularly and is updated based on actual claims data reported by our claims processors and other actual data received. The allowance is based on known facts and circumstances, internal factors including experience with similar cases, historical trends involving loss payment patterns, and the mix of transaction and loss types. Additions to the allowance are reflected as a component of transaction and loan losses in our consolidated statements of income. At December 31, 2018 and 2017 , the allowance for transaction losses totaled $129 million and $92 million , respectively, and was included in accrued expenses and other current liabilities in our consolidated balance sheets. Negative customer balances occur primarily when there are insufficient funds in a customer’s PayPal account to cover charges applied for ACH returns, debit card transactions, merchant-related chargebacks due to non-delivery, or unsatisfactory delivery of goods or services. Negative customer balances can be cured by the customer by adding funds to their account, receiving payments, or through back-up funding sources. We also utilize third-party collection agents. For negative customer balances that are not expected to be cured or otherwise collected, we provide an allowance for uncollectible accounts. The allowance is estimated based on known facts and circumstances, internal factors including our experience with similar cases, and historical trends involving collection and write-off patterns. Negative customer balances are included in other current assets, net of the allowance in our consolidated balance sheets. Adjustments to the allowance for negative |