Expedia Group · Risk factors

S-4/A*†

8-K*^

POS- AM*†

101.INS Inline XBRL Instance Document-the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document 101.SCH Inline XBRL Taxonomy Extension Schema 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase 101.LAB Inline XBRL Taxonomy Extension Label Linkbase 101.PR E Inline XBRL Taxonomy Extension Presentation Linkbase Cover page formatted as Inline XBRL and contained in Exhibit 101 * Indicates a management contract or compensatory plan or arrangement.

*† Indicates reference to filing of Liberty Expedia Holdings, Inc.

*^ Indicates reference to filing of Qurate Retail, Inc.

*** Furnished herewith Part IV. Item 16. Form 10-K Summary Not applicable.

Signatures Pursuant to the requirements of the Section 13 or 15(d) Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

By:

/s/ PETER M. KERN Peter M. Kern Chief Executive Officer and Vice Chairman Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities indicated on February 10, 2022.

Signature Title /s/ PETER M. KERN Chief Executive Officer, Vice Chairman and Director Peter M. Kern (Principal Executive Officer) /s/ ERIC HART Chief Financial Officer Eric Hart (Principal Financial Officer) /s/ LANCE A. SOLIDAY Senior Vice President, Chief Accounting Lance A. Soliday Officer and Controller (Principal Accounting Officer) /s/ BARRY DILLER Chairman of the Board, Senior Executive and Director Barry Diller /s/ SAMUEL ALTMAN Samuel Altman /s/ BEVERLY ANDERSON Beverly Anderson /s/ SUSAN C. ATHEY Susan C. Athey /s/ CHELSEA CLINTON Chelsea Clinton /s/ CRAIG A. JACOBSON Craig A. Jacobson /s/ DARA KHOSROWSHAHI Dara Khosrowshahi /s/ PATRICIA MENENDEZ CAMBO Patricia Menendez Cambo /s/ ALEXANDER VON FURSTENBERG Alexander von Furstenberg /s/ JULIE WHALEN Julie Whalen INDEX TO CONSOLIDATED FINANCIAL STATEMENTS, SCHEDULES AND EXHIBITS Consolidated Financial Statements Report of Independent Registered Public Accounting Firm (PCAOB ID: 42)

Report of Independent Registered Public Accounting Firm To the Stockholders and the Board of Directors of Expedia Group, Inc.

Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of Expedia Group, Inc. (the Company) as of December 31, 2021 and 2020, the related consolidated statements of operations, comprehensive income, changes in stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2021, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 10, 2022 expressed an unqualified opinion thereon.

Basis for Opinion These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Loyalty Programs Description of the Matter As discussed in Note 2 of the financial statements, travelers enrolled in the Expedia Rewards and Hotels.com Rewards loyalty programs (collectively “loyalty programs”) earn reward points with each eligible booking made which can be redeemed for free or discounted future bookings. Member consideration is allocated between travel services and reward points earned in the loyalty programs. The Company defers the relative standalone selling price of earned reward points, net of rewards not expected to be redeemed (known as “breakage”), as deferred loyalty rewards within deferred merchant bookings on the consolidated balance sheet. To estimate the relative standalone selling price for reward points, the Company considers the stated redemption value per point dictated by the terms of the loyalty programs and then estimates the future breakage of reward points based on statistical modeling techniques using historical member activity. The deferred loyalty rewards balance, net of amounts paid to the travel suppler, is recognized as revenue when the travel service purchased with the loyalty reward is satisfied.

Auditing the Company’s deferred loyalty rewards balance is especially complex and judgmental due to significant measurement uncertainty in determining the expected future breakage of reward points. Management uses statistical modeling techniques to estimate future breakage based on historical member activity. The amount of member consideration allocated to the reward points earned is sensitive to the expected future breakage assumption. Changes in loyalty program terms or the method or manner in which reward points can be redeemed by members can change member behavior which increases the measurement uncertainty as historical member activity may not be indicative of future behavior.

How We Addressed the Matter in Our Audit We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over Management’s review of the statistical modeling techniques and resulting breakage estimates. We also tested controls over the completeness and accuracy of member activity data used in the breakage estimate analyses. This included controls over the Company’s systems and the application controls involved in the process to track loyalty reward member activity.

To test the deferred loyalty rewards balance, we performed audit procedures that included, among others, involving our actuarial specialists to assist us in assessing the methods used by Management and to develop an independent actuarial estimate of a reasonable range of breakage rates. We then compared this reasonable range of breakage rates to the Company’s estimates. Additionally, we tested the completeness and accuracy of the member activity data used by our actuarial specialists in their breakage analyses.

Deferred Tax Assets Valuation Allowance Description of the Matter As discussed in Note 2 to the consolidated financial statements, the Company records a valuation allowance based on the assessment of the realizability of the Company’s deferred tax assets. The Company establishes a valuation allowance to reduce deferred tax assets to the amount management believes is more likely than not to be realized. For the year ended December 31, 2021, the Company recorded deferred tax assets of $1,518 million and a related valuation allowance of $171 million.

Auditing management’s assessment of the realizability of its deferred tax assets is complex because management’s projection of future taxable income includes forward-looking assumptions that are inherently judgmental because they may be affected by future market or other economic conditions.

How We Addressed the Matter in Our Audit We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over Management’s review of the realizability of deferred tax assets. This included controls over management’s evaluation of the sources of future taxable income.

We tested the assumptions used by the Company to develop the anticipated future earnings used in the Company’s analysis in determining the valuation allowance. We tested the completeness and accuracy of the underlying data used in the Company’s projections. For example, we evaluated the appropriateness of the assumptions underlying the future projected financial information, as well as management’s consideration of current operating, industry and economic trends. We also compared the projections of future taxable income with other forecasted financial information prepared by the Company. In addition, we evaluated the application of tax law in the projections of future taxable income.

/s/ Ernst & Young LLP We have served as the Company’s auditor since 2004.

Seattle, Washington Consolidated Financial Statements CONSOLIDATED STATEMENTS OF OPERATIONS (In millions, except for per share data) Costs and expenses:

Cost of revenue (exclusive of depreciation and amortization shown separately below) (1) Selling and marketing (1) Technology and content (1) General and administrative (1) Impairment of goodwill Intangible and other long-term asset impairment Other income (expense):

Interest income Interest expense Gain (loss) on sale of business, net Total other expense, net Income (loss) before income taxes Net (income) loss attributable to non-controlling interests Net income (loss) attributable to Expedia Group, Inc.

Preferred stock dividend Loss on redemption of preferred stock Net income (loss) attributable to Expedia Group, Inc. common stockholders Earnings (loss) per share attributable to Expedia Group, Inc. available to common stockholders:

Basic Diluted Shares used in computing earnings (loss) per share (000's):

Basic Diluted _______ (1) Includes stock-based compensation as follows:

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other comprehensive income (loss), net of tax Currency translation adjustments, net of taxes Net reclassification of foreign currency translation adjustments into total other expenses, net Other comprehensive income (loss), net of tax Comprehensive income (loss) Less: Comprehensive income (loss) attributable to non-controlling interests Less: Preferred stock dividend Less: Loss on redemption of preferred stock Comprehensive income (loss) attributable to Expedia Group, Inc. common stockholders CONSOLIDATED BALANCE SHEETS (In millions, except per share data) ASSETS Current assets:

Cash and cash equivalents Restricted cash and cash equivalents Short-term investments Accounts receivable, net of allowance of $65 and $101 Income taxes receivable Prepaid expenses and other current assets Total current assets Property and equipment, net Operating lease right-of-use assets Long-term investments and other assets Intangible assets, net Goodwill TOTAL ASSETS LIABILITIES AND STOCKHOLDERS’ EQUITY Current liabilities:

Accounts payable, merchant Accounts payable, other Deferred merchant bookings Deferred revenue Income taxes payable Accrued expenses and other current liabilities Current maturities of long-term debt Total current liabilities Long-term debt, excluding current maturities Operating lease liabilities Other long-term liabilities Commitments and contingencies Series A Preferred Stock: $.001 par value, Authorized shares: 100,000; Shares issued: 1,200 and 1,200, and shares outstanding: — and 1,200 Stockholders’ equity:

Common stock $.0001 par value, Authorized shares: 1,600,000 Shares issued: 274,661 and 261,564; Shares outstanding: 150,125 and 138,074 Class B common stock $.0001 par value, Authorized shares: 400,000 Shares issued: 12,800 and 12,800; Shares outstanding: 5,523 and 5,523 Additional paid-in capital Treasury stock — Common stock and Class B, at cost, Shares 131,813 and 130,767 Retained earnings (deficit) Accumulated other comprehensive income (loss) Total Expedia Group, Inc. stockholders’ equity Non-redeemable non-controlling interests Total stockholders’ equity TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (In millions, except share and per share data) Class B Additional paid-in capital Treasury stock - Common and Class B Retained earnings (deficit) Accumulated comprehensive income (loss) Non-redeemable non-controlling interest Total Net income (excludes $2 of net loss attributable to redeemable non-controlling interest) Payment of dividends to common stockholders (declared at $1.32 per share) Withholding taxes for stock options Liberty Expedia Holdings transaction Common stock repurchases Impact of adoption of new accounting guidance Net loss Payment of dividends to common stockholders (declared at $0.34 per share) Payment of preferred dividends (declared at $62.47 per share) Common stock warrants, net of issuance costs Common stock repurchases Class B Additional paid-in capital Treasury stock - Common and Class B Retained earnings (deficit) Accumulated comprehensive income (loss) Non-redeemable non-controlling interest Total Net income Payment of preferred dividends (declared at $74.96 per share) Exercise of common stock warrants Loss on redemption of preferred stock Withholding taxes for stock options CONSOLIDATED STATEMENTS OF CASH FLOWS Operating activities:

Adjustments to reconcile net income (loss) to net cash provided by operating activities:

Depreciation of property and equipment, including internal-use software and website development Amortization of stock-based compensation Amortization of intangible assets Impairment of goodwill, intangible and other long-term assets Foreign exchange (gain) loss on cash, restricted cash and short-term investments, net Realized (gain) loss on foreign currency forwards (Gain) loss on minority equity investments, net (Gain) loss on sale of business, net Provision for credit losses and other, net Changes in operating assets and liabilities, net of effects from acquisitions and dispositions:

Accounts receivable Prepaid expenses and other assets Accounts payable, merchant Accounts payable, other, accrued expenses and other liabilities Tax payable/receivable, net Deferred merchant bookings Deferred revenue Net cash provided by (used in) operating activities Investing activities:

Capital expenditures, including internal-use software and website development Purchases of investments Sales and maturities of investments Cash and restricted cash divested from sale of business, net of proceeds Net cash used in investing activities Financing activities:

Revolving credit facility borrowings Revolving credit facility repayments Proceeds from issuance of long-term debt, net of issuance costs Payment of long-term debt Debt extinguishment costs Payment of Liberty Expedia Exchangeable Debentures Net proceeds from issuance of preferred stock and warrants Redemption of preferred stock Purchases of treasury stock Payment of dividends to common and preferred stockholders Proceeds from exercise of equity awards and employee stock purchase plan Net cash provided by (used in) financing activities Effect of exchange rate changes on cash, cash equivalents and restricted cash and cash equivalents Net increase in cash, cash equivalents and restricted cash and cash equivalents Cash, cash equivalents and restricted cash and cash equivalents at beginning of year Cash, cash equivalents and restricted cash and cash equivalents at end of year Supplemental cash flow information Cash paid for interest Income tax payments, net Notes to Consolidated Financial Statements NOTE 1 — Organization and Basis of Presentation Description of Business Expedia Group, Inc. and its subsidiaries provide travel products and services to leisure and corporate travelers in the United States and abroad as well as various media and advertising offerings to travel and non-travel advertisers.

These travel products and services are offered through a diversified portfolio of brands including: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Vrbo®, trivago®, Orbitz®, Travelocity®, Hotwire®, Wotif®, ebookers®, CheapTickets®, Expedia Group™ Media Solutions, CarRentals.com™, Expedia CruisesTM, and Traveldoo®. In addition, many of these brands have related international points of sale. We refer to Expedia Group, Inc. and its subsidiaries collectively as “Expedia Group,” the “Company,” “us,” “we” and “our” in these consolidated financial statements.

COVID-19 The COVID-19 pandemic has severely restricted the level of economic activity around the world, had an unprecedented effect on the global travel industry and materially and negatively impacted our business, financial results and financial condition. Since the first quarter of 2020, the governments of many countries, states, cities and other geographic regions have implemented, and continue to implement, a variety of containment measures, including travel restrictions, bans and advisories, instructions to practice social distancing, curfews, quarantine advisories, including quarantine restrictions after travel in certain locations, “shelter-in-place” orders, required closures of non-essential businesses, vaccination mandates or requirements for businesses to confirm employees’ vaccination status, and other restrictions. While the process of vaccinating their residents against COVID-19 is underway in many countries, with various levels of success, the large scale and challenging logistics of distributing the vaccines, the unavailability of vaccines in many regions, the impact of vaccine hesitancy, as well as uncertainty over the efficacy of the vaccine against new variants of the virus, may all contribute to delays in economic recovery, particularly for the travel industry.

Overall, the full duration and total impact of COVID-19 remains uncertain and it is difficult to predict how the recovery will unfold for the travel industry and, in particular, our business, going forward.

Basis of Presentation The accompanying consolidated financial statements include Expedia Group, Inc., our wholly-owned subsidiaries, and entities we control, or in which we have a variable interest and are the primary beneficiary of expected cash profits or losses. We record our investments in entities that we do not control, but over which we have the ability to exercise significant influence, using the equity method or at fair value. We have eliminated significant intercompany transactions and accounts.

We believe that the assumptions underlying our consolidated financial statements are reasonable. However, these consolidated financial statements do not present our future financial position, the results of our future operations and cash flows.

Seasonality We generally experience seasonal fluctuations in the demand for our travel services. For example, traditional leisure travel bookings are generally the highest in the first three quarters as travelers plan and book their spring, summer and winter holiday travel. The number of bookings typically decreases in the fourth quarter. Since revenue for most of our travel services, including merchant and agency hotel, is recognized as the travel takes place rather than when it is booked, revenue typically lags bookings by several weeks for our hotel business and can be several months or more for our alternative accommodations business. Historically, Vrbo has seen seasonally stronger bookings in the first quarter of the year, with the relevant stays occurring during the peak summer travel months.

The seasonal revenue impact is exacerbated with respect to income by the nature of our variable cost of revenue and direct sales and marketing costs, which we typically realize in closer alignment to booking volumes, and the more stable nature of our fixed costs. Furthermore, operating profits for our primary advertising business, trivago, have typically been experienced in the second half of the year, particularly the fourth quarter, as selling and marketing costs offset revenue in the first half of the year as we typically increase marketing during the busy booking period for spring, summer and winter holiday travel. As a result on a consolidated basis, revenue and income are typically the lowest in the first quarter and highest in the third quarter. The growth of our international operations, advertising business or a change in our product mix, including the growth of Vrbo, may influence the typical trend of the seasonality in the future.

Impacts from COVID-19 disrupted our typical seasonal pattern for bookings, revenue, profit and cash flows during 2020 and 2021. Significantly higher cancellations and reduced booking volumes, particularly in the first half of 2020, resulted in material operating losses and negative cash flow. Although travel volumes remain materially lower than historic levels, booking and travel trends improved during the second half of 2020, and in 2021. This resulted in working capital benefits and positive cash flow more akin to typical historical trends. It remains difficult to forecast the seasonality for the upcoming quarters, given the uncertainty related to the duration of the impact from COVID-19 and the shape and timing of any sustained recovery.

NOTE 2 — Significant Accounting Policies Consolidation Our consolidated financial statements include the accounts of Expedia Group, Inc., our wholly-owned subsidiaries, and entities for which we control a majority of the entity’s outstanding common stock. We record non-controlling interest in our consolidated financial statements to recognize the minority ownership interest in our consolidated subsidiaries. Non-controlling interest in the earnings and losses of consolidated subsidiaries represent the share of net income or loss allocated to members or partners in our consolidated entities, which includes the non-controlling interest share of net income or loss from our redeemable and non-redeemable non-controlling interest entities. trivago is a separately listed company on the Nasdaq Global Select Market and, therefore, is subject to its own reporting and filing requirements, which could result in possible differences that are not expected to be material to Expedia Group, Inc.

We have eliminated significant intercompany transactions and accounts in our consolidated financial statements.

Accounting Estimates We use estimates and assumptions in the preparation of our consolidated financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”). Our estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of our consolidated financial statements. These estimates and assumptions also affect the reported amount of net income or loss during any period. Our actual financial results could differ significantly from these estimates. The significant estimates underlying our consolidated financial statements include revenue recognition; recoverability of current and long-lived assets, intangible assets and goodwill; income and transactional taxes, such as potential settlements related to occupancy and excise taxes; loss contingencies; deferred loyalty rewards; acquisition purchase price allocations; stock-based compensation and accounting for derivative instruments and provisions for credit losses, customer refunds and chargebacks.

The COVID-19 pandemic has created and may continue to create significant uncertainty in macroeconomic conditions, which may cause further business disruptions and adversely impact our results of operations. As a result, many of our estimates and assumptions required increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, our estimates may change materially in future periods.

Reclassifications We have reclassified prior period financial statements to conform to the current period presentation. During the first quarter of 2021, we centralized the management of our licensing and maintenance costs and reclassified certain expenses to technology and content expense from within our other operating expense line items on our consolidated statements of operations. The following table presents a summary of the amounts as reported and as reclassified in our consolidated statements of operations for the years ended December 31, 2020 and 2019:

As reported As reclassified As reported As reclassified Revenue Recognition We recognize revenue upon transfer of control of our promised services in an amount that reflects the consideration we expect to be entitled to in exchange for those services.

For our primary transaction-based revenue sources, discussed below, we have determined net presentation (that is, the amount billed to a traveler less the amount paid to a supplier) is appropriate for the majority of our revenue transactions as the supplier is primarily responsible for providing the underlying travel services and we do not control the service provided by the supplier to the traveler. We exclude all taxes assessed by a government authority, if any, from the measurement of transaction prices that are imposed on our travel related services or collected by the Company from customers (which are therefore excluded from revenue).

We offer traditional travel services on a stand-alone and package basis generally either through the merchant or the agency business model.

Under the merchant model, we facilitate the booking of hotel rooms, alternative accommodations, airline seats, car rentals and destination services from our travel suppliers and we are the merchant of record for such bookings.

Under the agency model, we pass reservations booked by the traveler to the relevant travel supplier and the travel supplier serves as the merchant of record for such bookings. We receive commissions or ticketing fees from the travel supplier and/or traveler. For certain agency airline, hotel and car transactions, we also receive fees through global distribution systems (“GDS”) that provide the computer systems through which the travel supplier inventory is made available and through which reservations are booked.

Under the advertising model, we offer travel and non-travel advertisers access to a potential source of incremental traffic and transactions through our various media and advertising offerings on trivago and our transaction-based websites.

In addition, Vrbo also provides subscription-based listing and other ancillary services to property owners and managers.

The nature of our travel booking service performance obligations vary based on the travel service with differences primarily related to the degree to which we provide post booking services to the traveler and the timing when rights and obligations are triggered in our underlying supplier agreements. We consider both the traveler and travel supplier as our customers.

Refer to NOTE 19 — Segment Information for revenue by business model and service type.

Lodging. Our lodging revenue is comprised of revenue recognized under the merchant, agency and Vrbo subscription-based listing services model.

Merchant Hotel. We provide travelers access to book hotel room reservations through our contracts with lodging suppliers, which provide us with rates and availability information for rooms but for which we have no control over the rooms and do not bear inventory risk. Our travelers pay us for merchant hotel transactions prior to departing on their trip, generally when they book the reservation. We record the payment in deferred merchant bookings until the stayed night occurs, at which point we recognize the revenue, net of amounts paid to suppliers, as this is when our performance obligation is satisfied. In certain nonrefundable, nonchangeable transactions where we have no significant post booking services (primarily opaque hotel offerings), we record revenue when the traveler completes the transaction on our website, less a reserve for chargebacks and cancellations based on historical experience.

Payments to suppliers are generally due within 30 days of check-in or stay. In certain instances when a supplier invoices us for less than the cost we accrued, we generally reduce our merchant accounts payable and the supplier costs within net revenue six months in arrears, net of an allowance, when we determine it is not probable that we will be required to pay the supplier, based on historical experience. Cancellation fees are collected and remitted to the supplier, if applicable.

Agency Hotel. We generally record agency revenue from the hotel when the stayed night occurs as we provide post booking services to the traveler and, thus consider the stay as when our performance obligation is satisfied. We record an allowance for cancellations on this revenue based on historical experience.

Merchant and Agency Vrbo Alternative Accommodations. Vrbo's lodging revenue is generally earned on a pay-per-booking basis, which can be either merchant or agency bookings depending on the nature of the payment processor. Pay-per-booking arrangements are commission-based where rental property owners and managers bear the inventory risk, have latitude in setting the price and compensate Vrbo for facilitating bookings with travelers. Under pay-per-booking arrangements, each booking is a separate contract as listings are typically cancelable at any time and the related revenue, net of amounts paid to property owners, is recognized at check in, which is the point in time when our service to the traveler is complete. Vrbo also charges a traveler service fee at the time of booking.

The service fee charged to travelers provides compensation for Vrbo's services, including but not limited to the use of Vrbo's website and a “Book with Confidence Guarantee” providing travelers with comprehensive payment protection and 24/7 traveler support. The performance obligation is to facilitate the booking of a property and assist travelers up to their check in process and, as such, the traveler service fee revenue is recognized at check-in.

Subscription-based Listing Services. To a lesser extent, Vrbo's lodging revenue is also earned on a pay-per-subscription basis. In pay-per-subscription contracts, property owners or managers purchase in advance online advertising services related to the listing of their properties for rent over a fixed term (typically one year). As the performance obligation is the listing service and is provided to the property owner or manager over the life of the listing period, the pay-per-subscription revenue is recognized on a straight-line basis over the listing period.

Merchant and Agency Air. We record revenue on air transactions when the traveler books the transaction, as we do not typically provide significant post booking services to the traveler and payments due to and from air carriers are typically due at the time of ticketing. We record a reserve for chargebacks and cancellations at the time of the transaction based on historical experience. In certain transactions, the GDS collects commissions from our suppliers and passes these commissions to us, net of their fees. Therefore, we view payments through the GDS as commissions from suppliers and record these commissions in net revenue. Fees paid to the GDS as compensation for their role in processing transactions are recorded as cost of revenue.

Advertising and Media. We record revenue from click-through fees charged to our travel partners for leads sent to the travel partners’ websites. We record revenue from click-through fees after the traveler makes the click-through to the related travel partners’ websites. We record revenue for advertising placements ratably over the advertising period or upon delivery of advertising impressions, depending on the terms of the contract. Payments from advertisers are generally due within 30 days of invoicing.

Other. Other primarily includes transaction revenue for booking services related to products such as car, cruise and destination services under the agency business model. We generally record the related revenue when the travel occurs, as in most cases we provide post booking services and this is when our performance obligation is complete. Additionally, no rights or obligations are triggered in our supplier agreements until the travel occurs. We record an allowance for cancellations on this revenue based on historical experience. Revenue from other ancillary alternative accommodation services or products are recorded either upon delivery or when we provide the service. In addition, other also includes travel insurance products primarily under the merchant model, for which revenue is recorded at the time the transaction is booked.

Packages. Packages assembled by travelers through the packaging functionality on our websites generally include a merchant hotel component and some combination of an air, car or destination services component. The individual package components are accounted for as separate performance obligations and recognized in accordance with our revenue recognition policies stated above.

Prepaid Merchant Bookings. We classify payments made to suppliers in advance of Vrbo performance obligations as prepaid merchant bookings included within prepaid and other current assets. Prepaid merchant bookings was $581 million as of December 31, 2021 and $389 million as of December 31, 2020.

Deferred Merchant Bookings. We classify cash payments received in advance of our performance obligations as deferred merchant bookings. At December 31, 2020, $2.3 billion of advance cash payments was reported within deferred merchant bookings, $1.7 billion of which was recognized resulting in $301 million of revenue during the year ended December 31, 2021 with the remainder primarily consisting of cancellations during the year. At December 31, 2021, the related balance was $4.9 billion.

Travelers enrolled in our internally administered traveler loyalty rewards programs earn points for each eligible booking made which can be redeemed for free or discounted future bookings. Hotels.com Rewards offers travelers one free night at any Hotels.com partner property after that traveler stays 10 nights, subject to certain restrictions. Expedia Rewards enables participating travelers to earn points on all hotel, flight, package and activities made on various Brand Expedia websites. Orbitz Rewards allows travelers to earn Orbucks, the currency of Orbitz Rewards, on flights, hotels and vacation packages and instantly redeem those Orbucks on future bookings at various hotels worldwide. As travelers accumulate points towards free travel products, we defer the relative standalone selling price of earned points, net of expected breakage, as deferred loyalty rewards within deferred merchant bookings on the consolidated balance sheet.

In order to estimate the standalone selling price of the underlying services on which points can be redeemed for all loyalty programs, we use an adjusted market assessment approach and consider the redemption values expected from the traveler. We then estimate the number of rewards that will not be redeemed based on historical activity in our members' accounts as well as statistical modeling techniques. Revenue is recognized when we have satisfied our performance obligation relating to the points, that is when the travel service purchased with the loyalty award is satisfied. The majority of rewards expected to be redeemed are recognized within one to two years of being earned.

At December 31, 2020, $769 million of deferred loyalty rewards was reported within deferred merchant bookings, $569 million of which was recognized as revenue during the year ended December 31, 2021. At December 31, 2021, the related balance was $798 million.

Deferred Revenue. Deferred revenue primarily consists of unearned subscription revenue as well as deferred advertising revenue. At December 31, 2020, $172 million was recorded as deferred revenue, $105 million of which was recognized as revenue during the year ended December 31, 2021. At December 31, 2021, the related balance was $166 million.

Practical Expedients and Exemptions. We have used the portfolio approach to account for our loyalty points as the rewards programs share similar characteristics within each program in relation to the value provided to the traveler and their breakage patterns. Using this portfolio approach is not expected to differ materially from applying the guidance to individual contracts. However, we will continue to assess and refine, if necessary, how a portfolio within each rewards program is defined.

We do not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

Cash, Restricted Cash, and Cash Equivalents Our cash and cash equivalents include cash and liquid financial instruments, including U.S. treasury securities, money market funds and term deposit investments, with maturities of three months or less when purchased. Restricted cash includes cash and cash equivalents that is restricted through legal contracts, regulations or our intention to use the cash for a specific purpose. Our restricted cash primarily relates to certain traveler deposits and to a lesser extent collateral for office leases. The following table reconciles cash, cash equivalents and restricted cash reported in our consolidated balance sheets to the total amount presented in our consolidated statements of cash flows:

Cash and cash equivalents Restricted cash and cash equivalents Restricted cash included within long-term investments and other assets Total cash, cash equivalents and restricted cash and cash equivalents in the consolidated statement of cash flow Short-term and Long-term Investments We determine the appropriate classification of our investments in marketable securities at the time of purchase and reevaluate such designation at each balance sheet date. Investments, other than minority equity investments, classified as available-for-sale are recorded at fair value with unrealized holding gains and losses recorded, net of tax, as a component of accumulated other comprehensive income ("OCI"). Realized gains and losses from the sale of available-for-sale investments, if any, are determined on a specific identification basis. Investments with remaining maturities of less than one year are classified within short-term investments. All other investments are classified within long-term investments and other assets.

Minority equity investments with either readily determinable fair values, such as our investment in Despegar.com Corp ("Despegar"), or for which we have elected to apply the fair value option, such as our indirect investment in American Express Global Business Travel ("GBT"), are measured at fair value on a recurring basis with changes in fair value recorded through net income or loss. Minority investments without readily determinable fair values, for which we have not elected to measure at fair value, are measured using the equity method, or measured at cost with observable price changes reflected through net income or loss. We perform a qualitative assessment on a quarterly basis and recognize an impairment if there are sufficient indicators that the fair value of the investment is less than carrying value. Changes in value of minority equity investments are recorded in other income (expense), net.

Accounts Receivable Accounts receivable are generally due within thirty days and are recorded net of an allowance for expected uncollectible amounts. We consider accounts outstanding longer than the contractual payment terms as past due. The risk characteristics we generally review when analyzing our accounts receivable pools primarily include the type of receivable (for example, credit card vs hotel collect), collection terms and historical or expected credit loss patterns. For each pool, we make estimates of expected credit losses for our allowance by considering a number of factors, including the length of time trade accounts receivable are past due, previous loss history continually updated for new collections data, the credit quality of our customers, current economic conditions, reasonable and supportable forecasts of future economic conditions and other factors that may affect our ability to collect from customers. The provision for estimated credit losses is recorded as cost of revenue in our consolidated statements of operations.

Property and Equipment We record property and equipment at cost, net of accumulated depreciation and amortization. We also capitalize certain costs incurred related to the development of internal use software. We capitalize costs incurred during the application development stage related to the development of internal use software. We expense costs incurred related to the planning and post-implementation phases of development as incurred.

We compute depreciation using the straight-line method over the estimated useful lives of the assets, which is three to five years for computer equipment, capitalized software development and furniture and other equipment, 15 years for land improvements, and 40 years for buildings, which includes our corporate headquarters. Land is not depreciated. We amortize leasehold improvement using the straight-line method, over the shorter of the estimated useful life of the improvement or the remaining term of the lease.

We establish assets and liabilities for the present value of estimated future costs to return certain of our leased facilities to their original condition under the authoritative accounting guidance for asset retirement obligations. Such assets are depreciated over the lease period into operating expense, and the recorded liabilities are accreted to the future value of the estimated restoration costs.

Leases We determine if an arrangement is a lease at inception. Operating leases are primarily for office space and data centers and are included in operating lease right-of-use ("ROU") assets, accrued expenses and other current liabilities, and operating lease liabilities on our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

For operating leases with a term of one year or less, we have elected to not recognize a lease liability or ROU asset on our consolidated balance sheet. Instead, we recognize the lease payments as expense on a straight-line basis over the lease term. Short-term lease costs are immaterial to our consolidated statements of operations and cash flows.

We have office space and data center lease agreements with insignificant non-lease components and have elected the practical expedient to combine and account for lease and non-lease components as a single lease component.

Business Combinations We assign the value of the consideration transferred to acquire a business to the tangible assets and identifiable intangible assets acquired and liabilities assumed on the basis of their fair values at the date of acquisition. Any excess purchase price over the fair value of the net tangible and intangible assets acquired is allocated to goodwill. When determining the fair values of assets acquired and liabilities assumed, management makes significant estimates and assumptions, especially with respect to intangible assets. Critical estimates in valuing certain intangible assets include but are not limited to future expected cash flows from customer relationships and trade names, and discount rates. 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. Any changes to provisional amounts identified during the measurement period are recognized in the reporting period in which the adjustment amounts are determined.

Recoverability of Goodwill and Indefinite-Lived Intangible Assets Goodwill is assigned to reporting units that are expected to benefit from the synergies of the business combination as of the acquisition date. We assess goodwill and indefinite-lived intangible assets, neither of which is amortized, for impairment annually as of October 1, or more frequently, if events and circumstances indicate impairment may have occurred. In the evaluation of goodwill for impairment, we typically perform a quantitative assessment and compare the fair value of the reporting unit to the carrying value. An impairment charge is recorded based on the excess of the reporting unit's carrying amount over its fair value. Periodically, we may choose to perform a qualitative assessment, prior to performing the quantitative analysis, to determine whether the fair value of the goodwill is more likely than not impaired.

We generally base our measurement of fair value of reporting units, except for trivago, which is a separately listed company on the Nasdaq Global Select Market, on a blended analysis of the present value of future discounted cash flows and market valuation approach with the exception of our standalone publicly traded subsidiary, which is based on market valuation. The discounted cash flows model indicates the fair value of the reporting units based on the present value of the cash flows that we expect the reporting units to generate in the future. Our significant estimates in the discounted cash flows model include: our weighted average cost of capital; long-term rate of growth and profitability of our business; and working capital effects.

The market valuation approach indicates the fair value of the business based on a comparison of the Company to comparable publicly traded firms in similar lines of business. Our significant estimates in the market approach model include identifying similar companies with comparable business factors such as size, growth, profitability, risk and return on investment and assessing comparable revenue and operating income multiples in estimating the fair value of the reporting units. The fair value of the trivago reporting unit was based on trivago's stock price, a Level 1 input, adjusted for an estimated control premium.

We believe the weighted use of discounted cash flows and market approach is the best method for determining the fair value of our reporting units because these are the most common valuation methodologies used within the travel and internet industries; and the blended use of both models compensates for the inherent risks associated with either model if used on a stand-alone basis.

In addition to measuring the fair value of our reporting units as described above, we consider the combined carrying and fair values of our reporting units in relation to the Company’s total fair value of equity plus debt as of the assessment date. Our equity value assumes our fully diluted market capitalization, using either the stock price on the valuation date or the average stock price over a range of dates around the valuation date, plus an estimated acquisition premium which is based on observable transactions of comparable companies. The debt value is based on the highest value expected to be paid to repurchase the debt, which can be fair value, principal or principal plus a premium depending on the terms of each debt instrument.

In our evaluation of our indefinite-lived intangible assets, we typically first perform a quantitative assessment and an impairment charge is recorded for the excess of the carrying value of indefinite-lived intangible assets over their fair value, if necessary. We base our measurement of fair value of indefinite-lived intangible assets, which primarily consist of trade name and trademarks, using the relief-from-royalty method. This method assumes that the trade name and trademarks have value to the extent that their owner is relieved of the obligation to pay royalties for the benefits received from them. As with goodwill, periodically, we may choose to perform a qualitative assessment, prior to performing the quantitative analysis, to determine whether the fair value of the indefinite-lived intangible asset is more likely than not impaired.

Recoverability of Intangible Assets with Definite Lives and Other Long-Lived Assets Intangible assets with definite lives and other long-lived assets are carried at cost and are amortized on a straight-line basis over their estimated useful lives of one to ten years. We review the carrying value of long-lived assets or asset groups, including property and equipment, to be used in operations whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Factors that would necessitate an impairment assessment include a significant adverse change in the extent or manner in which an asset is used, a significant adverse change in legal factors or the business climate that could affect the value of the asset, or a significant decline in the observable market value of an asset, among others.

If such facts indicate a potential impairment, we would assess the recoverability of an asset group by determining if the carrying value of the asset group exceeds the sum of the projected undiscounted cash flows expected to result from the use and eventual disposition of the assets over the remaining economic life of the primary asset in the asset group. If the recoverability test indicates that the carrying value of the asset group is not recoverable, we will estimate the fair value of the asset group using appropriate valuation methodologies which would typically include an estimate of discounted cash flows. Any impairment would be measured as the difference between the asset groups carrying amount and its estimated fair value.

Assets held for sale, to the extent we have any, are reported at the lower of cost or fair value less costs to sell.

Redeemable Non-controlling Interests We have non-controlling interests in majority owned entities, which were carried at fair value as the non-controlling interests contained certain rights, whereby we could acquire and the minority shareholders could sell to us the additional shares of the company. If the redeemable non-controlling interest is redeemable at an amount other than fair value, we adjust the non-controlling interest to redemption value through earnings each period. In circumstances where the non-controlling interest is redeemable at fair value, changes in fair value of the shares for which the minority holders could sell to us were recorded to the non-controlling interest and as charges or credits to retained earnings (or additional paid-in capital in the absence of retained earnings).

Fair value determinations required high levels of judgment (“Level 3” on the fair value hierarchy) and were based on various valuation techniques, including market comparables and discounted cash flow projections. We had no redeemable non-controlling interests as of December 31, 2021 and $13 million of redeemable non-controlling interests, which were included within other long-term liabilities, as of December 31, 2020.

Income Taxes We record income taxes under the liability method. Deferred tax assets and liabilities reflect our estimation of the future tax consequences of temporary differences between the carrying amounts of assets and liabilities for book and tax purposes. We determine deferred income taxes based on the differences in accounting methods and timing between financial statement and income tax reporting. Accordingly, we determine the deferred tax asset or liability for each temporary difference based on the enacted tax rates expected to be in effect when we realize the underlying items of income and expense.

We consider many factors when assessing the likelihood of future realization of our deferred tax assets, including our recent earnings experience by jurisdiction, expectations of future taxable income, and the carryforward periods available to us for tax reporting purposes, as well as other relevant factors. We may establish a valuation allowance to reduce deferred tax assets to the amount we believe is more likely than not to be realized. Due to inherent complexities arising from the nature of our businesses, future changes in income tax law, tax sharing agreements or variances between our actual and anticipated operating results, we make certain judgments and estimates. Therefore, actual income taxes could materially vary from these estimates. All deferred income taxes are classified as long-term on our consolidated balance sheets.

We account for uncertain tax positions based on a two-step process of evaluating recognition and measurement criteria. The first step assesses whether the tax position is more likely than not to be sustained upon examination by the tax authority, including resolution of any appeals or litigation, based on the technical merits of the position. If the tax position meets the more likely than not criteria, the portion of the tax benefit greater than 50% likely to be realized upon settlement with the tax authority is recognized in the financial statements.

We recognize interest and penalties related to unrecognized tax benefits in the income tax expense line in our consolidated statement of operations. Accrued interest and penalties are included in other long-term liabilities on the consolidated balance sheet.

In relation to tax effects for accumulated OCI, our policy is to release the tax effects of amounts reclassified from accumulated OCI to pre-tax income (loss) from continuing operations. Any remaining tax effect in accumulated OCI is released following a portfolio approach.

We account for the global intangible low-tax income (“GILTI”) earned by our foreign subsidiaries included in gross U.S. taxable income in the period incurred.

Derivative Instruments Derivative instruments are carried at fair value on our consolidated balance sheets. The fair values of the derivative financial instruments generally represent the estimated amounts we would expect to receive or pay upon termination of the contracts as of the reporting date.

At December 31, 2021 and 2020, our derivative instruments primarily consisted of foreign currency forward contracts. We use foreign currency forward contracts to economically hedge certain merchant revenue exposures, foreign denominated liabilities related to certain of our loyalty programs and our other foreign currency-denominated operating liabilities. Our goal in managing our foreign exchange risk is to reduce, to the extent practicable, our potential exposure to the changes that exchange rates might have on our earnings, cash flows and financial position. Our foreign currency forward contracts are typically short-term and, as they do not qualify for hedge accounting treatment, we classify the changes in their fair value in other, net. We do not hold or issue financial instruments for speculative or trading purposes.

In June 2015, we issued Euro 650 million of registered senior unsecured notes that are due in June 2022 and bear interest at 2.5% (the “2.5% Notes”). The aggregate principal value of the 2.5% Notes is designated as a hedge of our net investment in certain Euro functional currency subsidiaries. The notes are measured at Euro to U.S. Dollar exchange rates at each balance sheet date and transaction gains or losses due to changes in rates are recorded in accumulated OCI. The Euro-denominated net assets of these subsidiaries are translated into U.S. Dollars at each balance sheet date, with effects of foreign currency changes also reported in accumulated OCI. Since the notional amount of the recorded Euro-denominated debt is less than the notional amount of our net investment, we do not expect to incur any ineffectiveness on this hedge.

Foreign Currency Translation and Transaction Gains and Losses Certain of our operations outside of the United States use the related local currency as their functional currency. We translate revenue and expense at average rates of exchange during the period. We translate assets and liabilities at the rates of exchange as of the consolidated balance sheet dates and include foreign currency translation gains and losses as a component of accumulated OCI. Due to the nature of our operations and our corporate structure, we also have subsidiaries that have significant transactions in foreign currencies other than their functional currency. We record transaction gains and losses in our consolidated statements of operations related to the recurring remeasurement and settlement of such transactions.

To the extent practicable, we attempt to minimize this exposure by maintaining natural hedges between our current assets and current liabilities of similarly denominated foreign currencies. Additionally, as discussed above, we use foreign currency forward contracts to economically hedge certain merchant revenue exposures and in lieu of holding certain foreign currency cash for the purpose of economically hedging our foreign currency-denominated operating liabilities.

Debt Issuance Costs We defer costs we incur to issue debt, which are presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability, and amortize these costs to interest expense over the term of the debt or in circumstances where the debt can be redeemed at the option of the holders, over the term of the redemption option.

Marketing Promotions We periodically provide incentive offers to our customers to encourage booking of travel products and services. Generally, our incentive offers are as follows:

Current Discount Offers. These promotions include dollar or percent off discounts to be applied against current purchases. We record the discounts as reduction in revenue at the date we record the corresponding revenue transaction.

Inducement Offers. These promotions include discounts granted at the time of a current purchase to be applied against a future qualifying purchase. We treat inducement offers as a reduction to revenue based on estimated future redemption rates. We allocate the discount amount at the time of the offer between the current performance obligation and the potential future performance obligations based on our expected relative value of the transactions. We estimate our redemption rates using our historical experience for similar inducement offers.

Concession Offers. These promotions include discounts to be applied against a future purchase to maintain customer satisfaction. Upon issuance, we record these concession offers as a reduction to revenue based on estimated future redemption rates. We estimate our redemption rates using our historical experience for concession offers.

Advertising Expense We incur advertising expense consisting of offline costs, including television and radio advertising, and online advertising expense to promote our brands. We expense the production costs associated with advertisements in the period in which the advertisement first takes place. We expense the costs of communicating the advertisement (e.g., television airtime) as incurred each time the advertisement is shown. For the years ended December 31, 2021, 2020 and 2019, our advertising expense was $2.7 billion, $1.2 billion and $3.5 billion.

Stock-Based Compensation We measure and amortize the fair value of restricted stock units (“RSUs”) and stock options as follows:

Restricted Stock Units. RSUs are stock awards that are granted to employees entitling the holder to shares of common stock as the award vests, typically over a four-year period, but may accelerate in certain circumstances. During 2019, we started issuing RSUs as our primary form of stock-based compensation, which vested 25% after one year and then vested quarterly over the following three years. Beginning in 2021, we adopted a new vesting schedule for annual equity grants that provides for immediate quarterly vesting over the same four year term. We measure the value of RSUs at fair value based on the number of shares granted and the quoted price of our common stock at the date of grant.

We amortize the fair value, net of actual forfeitures, as stock-based compensation expense over the vesting term on a straight-line basis. In addition, we have a limited number of performance stock units ("PSUs"), for which we calculate the fair value using a Monte Carlo valuation model and amortized the fair value, net of actual forfeitures, as stock-based compensation over the vesting term, generally a two or three year period, on an accelerated basis. The number of shares that ultimately vest depends on achieving certain performance metrics or performance goals, as applicable, by the end of the performance period, assuming there is no accelerated vesting for, among other things, a termination of employment under certain circumstances.

We record RSUs that may be settled by the holder in cash, rather than shares, as a liability and we remeasure these instruments at fair value at the end of each reporting period. Upon settlement of these awards, our total compensation expense recorded over the vesting period of the awards will equal the settlement amount, which is based on our stock price on the settlement date.

Stock Options. Our employee stock options consist of service based awards, some of which also have market-based vesting conditions. We measure the value of stock options issued or modified, including unvested options assumed in acquisitions, on the grant date (or modification or acquisition dates, if applicable) at fair value, using appropriate valuation techniques, including the Black-Scholes and Monte Carlo option pricing models, for awards that contain market-based vesting conditions. We amortize the fair value, net of actual forfeitures, over the remaining explicit vesting term in the case of service-based awards and the longer of the derived service period or the explicit service period for awards with market conditions on a straight-line basis.

In addition, we classify certain employee option awards as liabilities when we deem it not probable that the employees holding the awards will bear the risk and rewards of stock ownership for a reasonable period of time. Such options are revalued at the end of each reporting period and upon settlement our total compensation expense recorded from grant date to settlement date will equal the settlement amount. The majority of our stock options vest over four years.

Estimates of fair value are not intended to predict actual future events or the value ultimately realized by employees who receive these awards, and subsequent events are not indicative of the reasonableness of our original estimates of fair value.

Earnings Per Share We compute basic earnings per share by taking net income or loss attributable to Expedia Group, Inc. available to common stockholders divided by the weighted average number of common and Class B common shares outstanding during the period excluding restricted stock and stock held in escrow. Diluted earnings per share include the potential dilution that could occur from stock-based awards and other stock-based commitments (which includes our Convertible Notes) using the treasury stock or the if converted method, as applicable. For additional information on how we compute earnings per share, see NOTE 12 — Earnings Per Share.

Fair Value Recognition, Measurement and Disclosure The carrying amounts of cash and cash equivalents and restricted cash and cash equivalents reported on our consolidated balance sheets approximate fair value as we maintain them with various high-quality financial institutions. The accounts receivable are short-term in nature and are generally settled shortly after the sale.

We disclose the fair value of our financial instruments based on the fair value hierarchy using the following three categories:

Level 1 — Valuations based on quoted prices for identical assets and liabilities in active markets.

Level 2 — Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3 — Valuations based on unobservable inputs reflecting the Company’s own assumptions, consistent with reasonably available assumptions made by other market participants. These valuations require significant judgment.

Certain Risks and Concentrations Our business is subject to certain risks and concentrations including dependence on relationships with travel suppliers, primarily airlines and hotels, dependence on third-party technology providers, exposure to risks associated with online commerce security and payment related fraud. We also rely on global distribution system partners and third-party service providers for certain fulfillment services.

Financial instruments, which potentially subject us to concentration of credit risk, consist primarily of cash and cash equivalents. We maintain some cash and cash equivalents balances with financial institutions that are in excess of Federal Deposit Insurance Corporation insurance limits. Our cash and cash equivalents are primarily composed of term deposits as well as bank (both interest and non-interest bearing) account balances denominated in U.S. dollars, Euros, British pound sterling, Canadian dollar, Australian dollar, Japanese yen and Brazilian real.

Contingent Liabilities We have a number of regulatory and legal matters outstanding, as discussed further in NOTE 15 — Commitments and Contingencies. Periodically, we review the status of all significant outstanding matters to assess the potential financial exposure. When (i) it is probable that an asset has been impaired or a liability has been incurred and (ii) the amount of the loss can be reasonably estimated, we record the estimated loss in our consolidated statements of operations. We provide disclosure in the notes to the consolidated financial statements for loss contingencies that do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the financial statements.

Significant judgment is required to determine the probability that a liability has been incurred and whether such liability is reasonably estimable. We base accruals made on the best information available at the time which can be highly subjective. The final outcome of these matters could vary significantly from the amounts included in the accompanying consolidated financial statements.

Occupancy and Other Taxes Some states and localities impose taxes (e.g. transient occupancy, accommodation tax, sales tax, and/or business privilege tax) on the use or occupancy of hotel accommodations or other traveler services. Generally, hotels collect taxes based on the room rate paid to the hotel and remit these taxes to the various tax authorities. When a customer books a room through one of our travel services, we collect a tax recovery charge from the customer which we pay to the hotel. We calculate the tax recovery charge by applying the applicable tax rate supplied to us by the hotels to the amount that the hotel has agreed to receive for the rental of the room by the consumer.

In most jurisdictions, we do not collect or remit taxes, nor do we pay taxes to the hotel operator on the portion of the customer payment we retain. Some jurisdictions have questioned our practice in this regard. While the applicable tax provisions vary among the jurisdictions, we generally believe that we are not required to collect and remit such taxes. A limited number of taxing jurisdictions have made similar claims against certain of our companies for tax amounts due on the rental amounts charged by owners of alternative accommodations properties or for taxes on our services. We are an intermediary between a traveler and a party renting a vacation property and we believe is similarly not liable for such taxes.

We are engaged in discussions with tax authorities in various jurisdictions to resolve these issues. Some tax authorities have brought lawsuits or have levied assessments asserting that we are required to collect and remit tax. The ultimate resolution in all jurisdictions cannot be determined at this time. We have established a reserve for the potential settlement of issues related to hotel occupancy and other taxes when determined to be probable and estimable. See NOTE 15 — Commitments and Contingencies for further discussion.