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Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2018

Traveler expenditures in the global travel market tend to follow a seasonal pattern. As such, advertising investments made by travel partners to market to potential travelers and, therefore, our revenue and profits tend to be seasonal as well. Our financial performance tends to be seasonally highest in the second and third quarters of a year, as it is a key period for leisure travel research and trip-taking, which includes the seasonal peak in traveler hotel and rental stays, and travel activities and experiences taken, compared to the first and fourth quarters which represent seasonal low points. Further significant shifts in our business mix or adverse economic conditions could result in future seasonal patterns that are different from historical trends.

Basis of Presentation and Consolidation

The accompanying consolidated financial statements include TripAdvisor, 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. All inter-company accounts and transactions have been eliminated in consolidation. Additionally, certain prior period amounts have been reclassified for comparability with the current period presentation. The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). 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.

One of our subsidiaries that operates in China has variable interests in affiliated entities in China in order to comply with Chinese laws and regulations, which restrict foreign investment in Internet content provision businesses. Although we do not own the capital stock of these Chinese affiliates, we consolidate their results as we are the primary beneficiary of the cash losses or profits of these variable interest affiliates and have the power to direct the activity of these affiliates. Our variable interest entities’ financials were not material for all periods presented.

Accounting Estimates

We use estimates and assumptions in the preparation of our consolidated financial statements in accordance with 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: (i) recognition and recoverability of goodwill, definite-lived intangibles and other long-lived assets; and (ii) accounting for income taxes. Refer to “Note 11: Income Taxes” for further discussion of our significant income tax amounts included in our consolidated financial statements.

Revenue Recognition

Refer to “Note 4: Revenue Recognition” for a discussion about our revenue recognition policies and other financial disclosures.

Cost of Revenue

Cost of revenue consists of expenses that are directly related or closely correlated to revenue generation, including direct costs, such as credit card and other booking transaction payment fees, data center costs, costs associated with prepaid tour tickets, ad serving fees, flight search fees, and other transaction costs. In addition, cost of revenue includes personnel and overhead expenses, including salaries, benefits, stock-based compensation and bonuses for certain customer support personnel who are directly involved in revenue generation.

Selling and Marketing

Selling and marketing expenses primarily consist of direct costs, including traffic generation costs from SEM and other online traffic acquisition costs, syndication costs and affiliate program commissions, social media costs, brand advertising, television and other offline advertising, promotions and public relations. In addition, our sales and marketing expenses consist of indirect costs such as personnel and overhead expenses, including salaries, commissions, benefits, stock-based compensation expense, and bonuses for sales, sales support, customer support and marketing employees.

We incur advertising expense, which includes traffic generation costs from SEM and other online traffic costs, affiliate program commissions, display advertising, social media, and other online, and offline (primarily television) advertising expense, promotions and public relations to promote our brands. We expense the costs associated with communicating the advertisements in the period in which the advertisement takes place. We expense the production costs associated with advertisements in the period in which the advertisement first takes place. For the years ended December 31, 2018, 2017 and 2016, we recorded advertising expense of $544 million, $629 million, and $543 million, respectively, in selling and marketing expense on our consolidated statements of operations. As of December 31, 2018 and 2017, we had $2 million and $5 million, respectively, of prepaid advertising expenses included in prepaid expenses and other current assets on our consolidated balance sheets. We expect to fully expense our prepaid advertising asset of $2 million as of December 31, 2018 to the consolidated statement of operations during 2019.

Technology and Content

Technology and content expenses consist primarily of personnel and overhead expenses, including salaries and benefits, stock-based compensation expense, and bonuses for salaried employees and contractors engaged in the design, development, testing, content support, and maintenance of our websites and mobile apps. Other costs include licensing, maintenance expense, computer supplies, telecom costs, content translation costs, and consulting costs.

General and Administrative

General and administrative expenses consist primarily of personnel and related overhead costs, including personnel engaged in leadership, finance, legal, and human resources, as well as stock-based compensation expense for those same personnel. General and administrative costs also include professional service fees and other fees including audit, legal, tax and accounting, and other costs including bad debt expense, non-income taxes, such as sales, use and other non-income related taxes.

Stock-Based Compensation

Stock Options. The exercise price for all stock options granted by us has been equal to the market price of the underlying shares of common stock at the date of grant. In this regard, when making stock option awards, our practice is to determine the applicable grant date and to specify that the exercise price shall be the closing price of our common stock on the date of grant. Our stock options generally have a term of ten years from the date of grant and typically vest equally over a four-year requisite service period. We amortize the grant-date fair value of our stock option grants as stock-based compensation expense over the vesting term on a straight-line basis, with the amount of compensation expense recognized at any date at least equaling the portion of the grant-date fair value of the award that is vested at that date.

The estimated grant-date fair value of stock options is calculated using a Black-Scholes Merton option-pricing model (“Black-Scholes model”). The Black-Scholes model incorporates assumptions to fair value stock-based awards, which includes the risk-free rate of return, expected volatility, expected term and expected dividend yield. Our risk-free interest rate is based on the rates currently available on zero-coupon U.S. Treasury issues, in effect at the time of the grant, whose remaining maturity period most closely approximates the stock option’s expected term assumption. Our expected volatility is calculated by equally weighting the historical volatility and implied volatility on our own common stock. Historical volatility is determined using actual daily price observations of our common stock price over a period equivalent to or approximate to the expected term of our stock option grants to date. Implied volatility represents the volatility calculated from the observed prices of our actively traded options on our common stock, with remaining maturities in excess of six months and market prices approximate to the exercise prices of the stock option grant. We estimate our expected term using historical exercise behavior and expected post-vest termination data. Our expected dividend yield is zero, as we have not paid any dividends on our common stock to date and do not expect to pay any cash dividends for the foreseeable future.

Restricted Stock Units. RSUs are stock awards that are granted to employees entitling the holder to shares of our common stock as the award vests. RSUs are measured at fair value based on the quoted price of our common stock at the date of grant. We amortize the fair value of RSUs as stock-based compensation expense over the vesting term, which is typically four years on a straight-line basis, with the amount of compensation expense recognized at any date at least equaling the portion of the grant-date fair value of the award that is vested at that date.

Performance-Based Awards. Performance-based stock options and RSUs vest upon achievement of certain company-based performance conditions and a requisite service period. On the date of grant, the fair value of a performance-based award is calculated using the same method as our service based stock options and RSUs described above. We then assess whether it is probable that the individual performance targets would be achieved. If assessed as probable, compensation expense will be recorded for these awards over the estimated performance period. At each reporting period, we will reassess the probability of achieving the performance targets and the performance period required to meet those targets. The estimation of whether the performance targets will be achieved and of the performance period required to achieve the targets requires judgment, and to the extent actual results or updated estimates differ from our current estimates, the cumulative effect on current and prior periods of those changes will be recorded in the period estimates are revised, or the change in estimate will be applied prospectively depending on whether the change affects the estimate of total compensation cost to be recognized or merely affects the period over which compensation cost is to be recognized. The ultimate number of shares issued and the related compensation expense recognized will be based on a comparison of the final performance metrics to the specified targets.

Market-based performance RSUs, or market-based RSUs (“MSUs”), vest upon achievement of specified levels of market conditions. The fair value of our MSUs is estimated at the date of grant using a Monte-Carlo simulation model. The probabilities of the actual number of market-based performance units expected to vest and resultant actual number of shares of common stock expected to be awarded are reflected in the grant date fair values; therefore, the compensation expense for these awards will be recognized assuming the requisite service period is rendered and are not adjusted based on the actual number of awards that ultimately vest.

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. The Company accounts for forfeitures in the period in which they occur, rather than estimate expected forfeitures.

Income Taxes

We record income taxes under the asset and 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 income tax rates expected to be in effect when we realize the underlying items of income and expense. We consider all relevant 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 assessing available tax planning strategies. 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. We classify deferred tax assets and liabilities as noncurrent on our consolidated balance sheet.

We record liabilities to address uncertain tax positions we have taken in previously filed tax returns or that we expect to take in a future tax return. The determination for required liabilities is based upon an analysis of each individual tax position, taking into consideration whether it is more likely than not that our tax position, based on technical merits, will be sustained upon examination.

Cash and Cash Equivalents

Our cash consists of cash deposits held in global financial institutions. Our cash equivalents consist of highly liquid investments, including money market funds and marketable debt securities, with maturities of 90 days or less at the date of purchase.

Short-term and Long-term Marketable Securities

We classify our marketable debt securities as either short-term or long-term based on each instrument’s underlying contractual maturity date and as to whether and when we intend to sell a particular security prior to its maturity date. Marketable debt securities with maturities greater than 90 days at the date of purchase and 12 months or less remaining at the balance sheet date will be classified as short-term and marketable debt securities with maturities greater than 12 months from the balance sheet date will generally be classified as long-term. We classify our marketable equity securities, limited by policy to money market funds and mutual funds, as either a cash equivalent, short-term or long-term based on the nature of each security and its availability for use in current operations.

As of December 31, 2018 and 2017, our marketable debt securities have been classified and accounted for as available-for-sale, and therefore are carried at fair value, with the unrealized gains and losses, net of taxes, reported in accumulated other comprehensive income (loss) as a component of stockholders’ equity. Fair values are determined for each individual security in the investment portfolio. We determine the appropriate classification of our marketable securities at the time of purchase and reevaluate the designations at each balance sheet date. We invest in highly-rated securities, and our investment policy limits the amount of credit exposure to any one issuer, industry group and currency. The policy requires investments to be investment grade, with the primary objective of minimizing the potential risk of principal loss and providing liquidity of investments sufficient to meet our operating and capital spending requirements and debt repayments. Realized gains and losses on the sale of marketable securities are determined by specific identification of each security’s cost basis. We may sell certain of our marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration, liquidity, and duration management. The weighted average maturity of our total invested cash shall not exceed 18 months, and no security shall have a final maturity date greater than three years, according to our investment policy.

We continually review our available for sale securities to determine whether a decline in fair value below the carrying value is other than temporary. When evaluating an investment for other-than-temporary impairment, we review factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, and our intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of the investment’s cost basis. Once a decline in fair value is determined to be other than temporary, an impairment charge is recorded and a new cost basis in the investment is established. If we do not intend to sell the security, but it is probable that we will not collect all amounts due, then only the impairment due to the credit risk would be recognized in earnings and the remaining amount of the impairment would be recognized in accumulated other comprehensive loss within stockholders’ equity.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recognized when the right to consideration becomes unconditional and are recorded net of an allowance for doubtful accounts. We record accounts receivable at the invoiced amount. Our customer invoices are generally due 30 days from the time of invoicing. Collateral is not required for accounts receivable. For accounts outstanding longer than the contractual payment terms, we determine an allowance by considering a number of factors, including the length of time trade accounts receivable are past due, previous loss history, a specific customer’s ability to pay its obligations to us, and the condition of the general economy and industry as a whole.

The following table presents the changes in our allowance for doubtful accounts for the periods presented:

	December 31,
	2018			2017			2016
	(in millions)
Allowance for doubtful accounts:
Balance, beginning of period	$	16		$	9		$	6
Charges to earnings		11			8			4
Write-offs, net of recoveries and other adjustments		(6	)		(1	)		(1	)
Balance, end of period	$	21		$	16		$	9

Derivative Financial Instruments

In certain circumstances, we enter into foreign currency forward exchange contracts (“forward contracts”) to reduce, to the extent practical, our potential exposure to the effects of fluctuating foreign currency exchange rates on our cash flows denominated in foreign currencies. We account for derivative instruments that do not qualify for hedge accounting as either assets or liabilities and carry them at fair value, with any subsequent adjustments to fair value recorded in interest income and other, net on our consolidated statements of operations. Monetary assets and liabilities denominated in a currency other than the functional currency of a given subsidiary are remeasured at spot rates in effect on the balance sheet date with the effects of changes in spot rates reported in interest income and other, net on our consolidated statements of operations. Accordingly, fair value changes in the forward contracts help mitigate the changes in the value of the remeasured assets and liabilities attributable to changes in foreign currency exchange rates, except to the extent of the spot-forward differences. These differences are not expected to be significant due to the short-term nature of the contracts, which to date, have typically had maturities at inception of 90 days or less. The net cash received or paid related to our derivative instruments are classified in other investing activities in our consolidated statements of cash flows. Counterparties to forward contracts consist of major international financial institutions. We monitor our positions and the credit ratings of the counterparties involved and, by policy limits, the amount of credit exposure to any one party. We do not use derivatives for trading or speculative purposes. We had not entered into any cash flow, fair value or net investment hedges as of December 31, 2018. Refer to “Note 7: Financial Instruments and Fair Value Measurements” for further disclosure on our derivatives.

Property and Equipment, Including Website and Software Development Costs

We record property and equipment at cost, net of accumulated depreciation. We capitalize certain costs incurred during the application development stage related to the development of websites and internal use software when it is probable the project will be completed and the software will be used as intended. Capitalized costs include internal and external costs, if direct and incremental, and deemed by management to be significant. We expense costs related to the planning and post-implementation phases of software and website development as these costs are incurred. Maintenance and enhancement costs (including those costs in the post-implementation stages) are typically expensed as incurred, unless such costs relate to substantial upgrades and enhancements to the website or software resulting in added functionality, in which case the costs are capitalized.

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 and website development, office furniture and other equipment. We depreciate leasehold improvements using the straight-line method, over the shorter of the estimated useful life of the improvement or the remaining term of the lease.

Leases

We lease office space in many countries around the world under non-cancelable lease agreements. We generally lease our office facilities under operating lease agreements. Office facilities subject to an operating lease and the related lease payments are not recorded on our balance sheet. The terms of certain lease agreements provide for rental payments on a graduated basis, however, we recognize rent expense on a straight-line basis over the lease period in accordance with GAAP. Any lease incentives are recognized as reductions of rental expense on a straight-line basis over the term of the lease. The lease term begins on the date we become legally obligated for the rent payments or when we take possession of the office space, whichever is earlier.

We establish assets and liabilities for the estimated construction costs incurred under lease arrangements where we are considered the owner for accounting purposes only, or build-to-suit leases, to the extent we are involved in the construction of structural improvements or take construction risk prior to commencement of a lease. Upon occupancy of facilities under build-to-suit leases, we assess whether these arrangements qualify for sales recognition under the sale-leaseback accounting guidance under GAAP. If we continue to be the deemed owner, for accounting purposes, the facilities are accounted for as financing obligations.

We also establish assets and liabilities for the present value of estimated future costs to return certain of our leased facilities to their original condition 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 and are included in other long-term liabilities on our consolidated balance sheet. Our asset retirement obligations were not material as of December 31, 2018 and December 31, 2017, respectively.

Refer to “Note 2: Significant Accounting Policies,” under the section New Accounting Pronouncements Not Yet Adopted, for information on the potential impact of new lease accounting guidance on our property leases which the Company will adopt on January 1, 2019.

Business Combinations

We account for acquired businesses using the acquisition method of accounting which requires that the tangible assets and identifiable intangible assets acquired and assumed liabilities be recorded at the date of acquisition at their respective fair values. Any excess purchase price over the estimated 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 estimates and assumptions, especially with respect to intangible assets. Significant estimates in valuing certain intangible assets may include but are not limited to future expected cash flows from customer and supplier relationships, acquired technology and trade names from a market participant perspective, useful lives 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. Valuations are performed by management or third party valuation specialists under management's supervision, where appropriate. Any changes to provisional amounts identified during the measurement period, calculated as if the accounting had been completed as of the acquisition date, are recognized in the consolidated statement of operations in the reporting period in which the adjustment amounts are determined.

Goodwill and Intangible Assets

Goodwill

We assess goodwill, which is not amortized, for impairment annually during the fourth quarter, or more frequently, if events and circumstances indicate impairment may have occurred. We test goodwill for impairment at the reporting unit level. Goodwill is assigned to reporting units that are expected to benefit from the synergies of the business combination as of the acquisition date. We evaluate our reporting units when changes in our operating structure occur, and if necessary, reassign goodwill using a relative fair value allocation approach. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill.

The Company has the option to qualitatively assess whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. In the evaluation of goodwill for impairment, we generally first perform a qualitative assessment to determine whether it is more likely than not (i.e., a likelihood of more than 50%) that the estimated fair value of the reporting unit is less than the carrying amount. Periodically, we may choose to forgo the initial qualitative assessment and proceed directly to a quantitative analysis to assist in our annual evaluation. When assessing goodwill for impairment, our decision to perform a qualitative impairment assessment for an individual reporting unit in a given year is influenced by a number of factors, including, but not limited to the size of the reporting unit's goodwill, the significance of the excess of the reporting unit's estimated fair value over carrying value at the last quantitative assessment date, the amount of time in between quantitative fair value assessments from the date of acquisition to establish an updated baseline quantitative analysis, and other performance and market indicators. During a qualitative assessment, if we determine that it is not more likely than not that the implied fair value of the goodwill is less than its carrying amount, no further testing is necessary. If, however, we determine that it is more likely than not that the implied fair value of the goodwill is less than its carrying amount, we then perform a quantitative assessment and compare the estimated fair value of the reporting unit to the carrying value. If the carrying value of a reporting unit exceeds its estimated fair value, the goodwill impairment is measured using the difference between the carrying value and the fair value of the reporting unit; however, any loss recognized cannot exceed the total amount of goodwill allocated to that reporting unit.

In determining the estimated fair values of reporting units in a quantitative goodwill impairment test, we generally use a blend, of the following recognized valuation methods: the income approach (discounted cash flows model) and the market valuation approach, which we believe compensates for the inherent risks of using either model on a stand-alone basis. 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: weighted average cost of capital; long-term rate of growth and profitability of the reporting unit; income tax rates and working capital effects. The market valuation approach indicates the fair value of the business based on a comparison to comparable publicly traded firms in similar lines of business and other precedent transactions. 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/or income multiples in estimating the fair value of the reporting units. Valuations are performed by management or third party valuation specialists under management's supervision, where appropriate. We believe that the estimated fair values assigned to our reporting units in impairment tests are based on reasonable assumptions that marketplace participants would use. However, such assumptions are inherently uncertain and actual results could differ from those estimates. The use of different assumptions, estimates or judgments could trigger the need for an impairment charge, or materially increase or decrease the amount of any such impairment charge.

During the Company's annual goodwill impairment test during the fourth quarter of 2018, a qualitative assessment for each of our reporting units' goodwill was performed and we concluded it was not more likely than not that an impairment existed. Accordingly, we did not proceed to a quantitative assessment or recognize any impairment charges during the year ending December 31, 2018. As part of our qualitative assessment for our 2018 goodwill impairment analysis of our reporting units, the factors that we considered included, but were not limited to: (a) changes in macroeconomic conditions in the overall economy and the specific markets in which we operate, (b) our ability to access capital, (c) changes in the online travel industry, (d) changes in the level of competition, (e) evaluation of current and future forecasted financial results of the reporting units, (f) comparison of our current financial performance to historical and budgeted results of the reporting units, (g) change in excess of the Company’s market capitalization over its book value, (h) changes in estimates, valuation inputs, and/or assumptions since the last quantitative analysis of the reporting units, (i) changes in the regulatory environment; (j) changes in strategic outlook or organizational structure and leadership of the reporting units; and (k) other relevant factors, and how these factors might impact specific performance in future periods. However, as we periodically reassess estimated future cash flows and asset fair values, changes in our estimates and assumptions may cause us to realize material impairment charges in the future.

Intangible Assets

Intangible assets with estimable useful lives, or definite-lived intangibles, are carried at cost and are amortized on a straight-line basis over their estimated useful lives and reviewed for impairment upon certain triggering events. We routinely review the remaining estimated useful lives of definite-lived intangible assets. If we reduce the estimated useful life assumption, the remaining unamortized balance is amortized over the revised estimated useful life.

Intangible assets that have indefinite lives are not amortized and are tested for impairment annually during the fourth quarter, or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Similar to the qualitative assessment for goodwill, we may assess qualitative factors to determine if it is more likely than not that the implied fair value of the indefinite-lived intangible asset is less than its carrying amount. If we determine that it is not more likely than not that the implied fair value of the indefinite-lived intangible asset is less than its carrying amount, no further testing is necessary. If, however, we determine that it is more likely than not that the implied fair value of the indefinite-lived intangible asset is less than its carrying amount, we compare the implied fair value of the indefinite-lived asset with its carrying amount. If the carrying amount of an individual indefinite-lived intangible asset exceeds its implied fair value, the individual asset is written down by an amount equal to such excess. The assessment of qualitative factors is optional and at our discretion. We may bypass the qualitative assessment for any indefinite-lived intangible asset in any period and resume performing the qualitative assessment in any subsequent period. We base our quantitative measurement of fair value of indefinite-lived intangible assets, 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. This method requires us to estimate future revenues, the appropriate royalty rate and the weighted average cost of capital, however, such assumptions are inherently uncertain and actual results could differ from those estimates. The use of different assumptions, estimates or judgments could trigger the need for an impairment charge, or materially increase or decrease the amount of any such impairment charge.

The carrying value of indefinite-lived intangible assets that is subject to annual assessment for impairment is $30 million at December 31, 2018 and consists of trademarks and tradenames. During the Company's annual indefinite-lived intangible impairment test during the fourth quarter of 2018, a qualitative assessment was performed. As part of our qualitative assessment we considered, amongst other factors, the amount of excess fair value of our trade names and trademarks to the carrying value of those same assets, changes in estimates, and valuation input assumptions, since our previous quantitative analysis. After considering these factors and the impact that changes in such factors would have on the inputs used in our previous quantitative assessment, we determined that it was more likely than not that our indefinite-lived intangible assets were not impaired as of December 31, 2018.

Impairment of Long-Lived Assets

We periodically review the carrying amount of our definite-lived intangible assets and other long-term assets, including property and equipment and website and internal use software, to determine whether current events or circumstances indicate that such carrying amounts may 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 assess the recoverability of the 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 of the 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, using an appropriate discount rate. Any impairment would be measured by the amount that the carrying values, of such asset groups, exceed their fair value and would be included in operating income on the consolidated statement of operations. Considerable management judgment is necessary to estimate the fair value of asset groups. Accordingly, actual results could vary significantly from such estimates. We have not identified any circumstances that would warrant an impairment charge for any recorded definite-lived intangibles or other long term assets on our consolidated balance sheet at December 31, 2018.

Deferred Merchant Payables

In our Rentals free-to-list model and our Experiences offerings, we receive cash from travelers at the time of booking and we record these amounts, net of commissions, on our consolidated balance sheets as deferred merchant payables. We pay the suppliers, or the vacation rental owners and tour providers, respectively, after the travelers’ use. Therefore, we receive cash from the traveler prior to paying the supplier and this operating cycle represents a working capital source or use of cash to us. Our deferred merchant payables balance was $164 million and $156 million at December 31, 2018 and 2017, respectively, on our consolidated balance sheets.

Foreign Currency Translation and Transaction Gains and Losses

Our consolidated financial statements are reported in U.S. dollars. Certain of our subsidiaries outside of the United States use the related local currency as their functional currency and not the U.S. dollar. Therefore assets and liabilities of our foreign subsidiaries are translated at the spot rate in effect at the applicable reporting date, and the consolidated statements of operations are translated at the average exchange rates in effect during the applicable period. The resulting unrealized cumulative translation adjustment is recorded as a component of accumulated other comprehensive income (loss) in stockholders’ equity on our consolidated balance sheet.

We also have subsidiaries that have transactions in foreign currencies other than their functional currency. Transactions denominated in currencies other than the functional currency are recorded based on exchange rates at the time such transactions arise. Subsequent changes in exchange rates result in transaction gains and losses which are reflected in our consolidated statements of operations as unrealized (based on the applicable period-end exchange rate) or realized upon settlement of the transactions. Accordingly, we have recorded net foreign currency exchange losses of $6 million, gains of $1 million, and losses of $6 million for the years ended December 31, 2018, 2017 and 2016, respectively, in interest income and other, net on our consolidated statement of operations. These amounts also include transaction gains and losses, both realized and unrealized from forward contracts.

Fair Value Measurements and Disclosures

We apply fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. We measure assets and liabilities at fair value based on the expected exit price, which is the amount that would be received on the sale of an asset or amount paid to transfer a liability, as the case may be, in an orderly transaction between market participants in the principal or most advantageous market in which we would transact. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability at the measurement date. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis whereby inputs, used in valuation techniques, are assigned a hierarchical level. GAAP provides the following hierarchical levels of inputs used to measure fair value:

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

Level 2—Valuations are based on observable inputs other than quoted market 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 are based on unobservable inputs reflecting our 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 concentration related to dependence on our relationships with our customers. For the years ended December 31, 2018, 2017 and 2016 our two most significant travel partners, Expedia (and its subsidiaries) and Booking (and its subsidiaries), each accounted for more than 10% of our consolidated revenue and combined accounted for 37%, 43% and 46%, respectively, of our consolidated revenue, with nearly all of this revenue concentrated in our Hotel segment. In addition, refer to “Note 18: Segment and Geographic Information” for disclosure on our concentrations for geographic revenue and products.

Financial instruments, which potentially subject us to concentration of credit risk, consist primarily of cash and cash equivalents, corporate debt securities, forward contracts, and accounts receivable. 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 bank account balances with financial institutions primarily denominated in U.S. dollars, Euros, British pounds, and Australian dollars, as well as, money market funds. We invest in highly-rated corporate debt securities, and our investment policy limits the amount of credit exposure to any one issuer, industry group and currency. Our credit risk related to corporate debt securities is also mitigated by the relatively short maturity period required by our investment policy. Forward contracts are transacted with various international financial institutions with high credit standings, which to date, have typically had maturities of less than 90 days. Our overall credit risk related to accounts receivable is mitigated by the relatively short collection period.

Contingent Liabilities

Periodically, we review the status of all significant outstanding matters to assess any 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 these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the consolidated financial statements. Significant judgment may be 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.

Treasury Stock

Shares of our common stock repurchased are recorded at cost as treasury stock and result in the reduction of stockholders' equity in our consolidated balance sheet. We may reissue these treasury shares. When treasury shares are reissued, we use the average cost method for determining the cost of reissued shares. If the issuance price is higher than the cost, the excess of the issuance price over the cost is credited to additional paid-in-capital. If the issuance price is lower than the cost, the difference is first charged against any credit balance in additional paid-in-capital from the previous issuances of treasury stock and any remaining balance is charged to retained earnings.

Earnings Per Share (“EPS”)

Refer to “Note 5: Earnings Per Share” for a discussion about how we compute Basic EPS and Diluted EPS.

New Accounting Pronouncements Not Yet Adopted and Recently Adopted Accounting Pronouncements

New Accounting Pronouncements Not Yet Adopted

In August 2018, the Financial Accounting Standards Board (“FASB”) issued new accounting guidance which require a customer in a cloud computing arrangement (i.e., hosting arrangement) that is a service contract to follow the internal-use software guidance to determine which implementation costs to capitalize as assets or expense as incurred. The accounting for the cost of the hosting component of the arrangement (i.e., service costs the customer pays for the cloud computing service) is not affected by this new guidance. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted, including adoption in any interim period. Entities have the option to apply the guidance retrospectively or prospectively to all implementation costs incurred after the date of adoption. We are currently considering our timing of adoption and the transition application method. We are also in the process of evaluating the impact of adopting this guidance on our consolidated financial statements and related disclosures.

In June 2016, the FASB issued new accounting guidance on the measurement of credit losses for financial assets measured at amortized cost, which includes accounts receivable, and available-for-sale debt securities. For financial assets measured at amortized cost, this new guidance requires an entity to: (1) estimate its lifetime expected credit losses upon recognition of the financial assets and establish an allowance to present the net amount expected to be collected; (2) recognize this allowance and changes in the allowance during subsequent periods through net income; and (3) consider relevant information about past events, current conditions and reasonable and supportable forecasts in assessing the lifetime expected credit losses. For available-for-sale debt securities, this new guidance made several targeted amendments to the existing other-than-temporary impairment model, including: (1) requiring disclosure of the allowance for credit losses; (2) allowing reversals of the previously recognized credit losses until the entity has the intent to sell, is more-likely-than-not required to sell the securities or the maturity of the securities; (3) limiting impairment to the difference between the amortized cost basis and fair value; and (4) not allowing entities to consider the length of time that fair value has been less than amortized cost as a factor in evaluating whether a credit loss exists. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted, including interim periods within those fiscal years beginning after December 15, 2018. We are currently considering our timing of adoption and in the process of evaluating the impact of adopting this guidance on our consolidated financial statements and related disclosures.

In February 2016, the FASB issued new guidance related to accounting for leases. The new standard amends the existing standards for lease accounting and includes the requirement for lessee recognition of right-of-use (ROU) assets and lease liabilities on the balance sheet for all leases with a term longer than twelve months, which will be initially measured at the present value of the future lease payments over the lease term. Under the new guidance, leases will be classified as either finance or operating leases, with classification affecting the pattern and presentation of expenses and cash flows on our consolidated financial statements. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. In July 2018, the FASB issued additional guidance on the accounting for leases which provides companies with an additional transition method, which allows companies to recognize a cumulative-effect adjustment to the opening balance of retained earnings as of the date of adoption. Under this transition method, previously presented years’ financial positions and financial results would not be adjusted. We will adopt the new standard on January 1, 2019 and use the effective date as our date of initial application based on the modified retrospective approach without adjusting the comparative periods presented. Consequently, we will not update our consolidated financial statements or provide any disclosures required under the new standard for dates and periods prior to January 1, 2019.

The new guidance provides a number of optional practical expedients and exemptions available upon adoption and for ongoing accounting. We plan to elect the following practical expedients: 1) the “practical expedients package of three”, which allows us at transition to continue to maintain prior accounting conclusions under the existing guidance for leases as of the adoption date, such as whether any expired or existing contracts contain leases, the classification of leases, and the accounting treatment for initial direct costs; thereby not being required to reassess these positions upon adoption of the new standard; 2) the “short-term lease recognition exemption”, which allows us to forego recognition of ROU assets and lease liabilities on our consolidated balance sheet for leases with a lease term of twelve months or less and which also do not include an option to renew the lease term that we are reasonably certain to exercise; 3) elect by asset class as an accounting policy, to combine lease and non-lease components as a single component and subsequently account for the combined single component as the lease component; and 4) apply the portfolio approach to similar types of leases where the Company does not reasonably expect the outcome to differ materially from applying the new guidance to individual leases.

In anticipation of adoption, we have updated our accounting policies to reflect the accounting rules within the new guidance and have completed the implementation of our lease accounting software to support our accounting process, financial reporting and the new financial disclosure requirements. We expect to implement certain new internal controls surrounding our lease accounting process upon the adoption of the new guidance.

We currently expect the primary effects of adoption of this new guidance to be as follows:

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Office space leases. We expect our office space leases, except for our Headquarters Lease, to remain operating leases which we will recognize ROU assets and corresponding lease liabilities on our consolidated balance sheet under the new guidance. We expect to recognize ROU assets ranging from $70 million to $80 million and lease liabilities of approximately $85 million to $95 million based on the present value of the remaining rental payments for these office space leases as of January 1, 2019. The difference in the ROU asset and the lease liability is the result of balances already recognized related to deferred and prepaid rent balances. In addition, we do not expect our short-term lease costs, variable lease costs, primarily from rental payments that are adjusted periodically for inflation, and our initial direct costs, to be material to our consolidated financial statements.

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Corporate headquarters lease. We are deemed the owner for accounting purposes of our corporate headquarters building under existing GAAP. Refer to “Note 14— Commitments and Contingencies” for additional information on the accounting under existing GAAP for our Headquarters Lease. Upon adoption of the new guidance, we expect to derecognize amounts in property and equipment, net and other long-term liabilities on our consolidated balance sheet as of December 31, 2018 of approximately $62 million and $70 million, respectively, with the difference recorded to our opening balance of retained earnings as of the adoption date. We expect our Headquarters Lease to be classified and accounted for as a finance lease under the new guidance as of January 1, 2019. Accordingly, we expect to then recognize an ROU asset ranging from $105 million to $120 million and a lease liability of approximately $85 million to $95 million based on the initial measurement of the present value of the remaining lease payments over the remaining lease term. The difference between the ROU asset and lease liability relates to a net prepaid rent balance.

We do not anticipate the income tax impact to be material to our consolidated financial statements from the adoption of this guidance. We also do not expect the adoption of this new guidance will have a material impact, either on an annual or quarterly basis, to our consolidated statement of operations and consolidated statement of cash flows on a go-forward basis. We expect to expand financial disclosure concerning leasing activity, including qualitative and quantitative disclosures.

Recently Adopted Accounting Pronouncements

In August 2018, the SEC adopted a final rule under SEC Release No. 33-10532, Disclosure Update and Simplification, that amends certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. The amendments also expanded the disclosure requirements on the analysis of stockholders' equity for interim financial statements, in which registrants must now analyze changes in stockholders’ equity, in the form of reconciliation, for the current and comparative year-to-date periods, with subtotals for each interim period, which the Company will begin applying this disclosure change in stockholders’ equity analysis in its March 31, 2019, Form 10-Q. This final rule is effective on November 5, 2018 and we assessed the impact on our consolidated financial statements disclosures to be not significant.

In May 2017, the FASB issued new accounting guidance that clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications which will reduce diversity in practice. Under the new guidance, an entity will not apply modification accounting to a share-based payment award if the award’s fair value (or calculated value or intrinsic value, if those measurement methods are used), the award’s vesting conditions, and the award’s classification as an equity or liability instrument are the same immediately before and after the change. The guidance also states that an entity is not required to estimate the value of the award immediately before and after the change if the change does not affect any of the inputs to the model used to value the award. We adopted this guidance prospectively in the first quarter of 2018 and the adoption did not have an impact on our consolidated financial statements and related disclosures. We believe the new guidance will likely result in fewer changes to the terms of an award being accounted for as modifications.

In January 2017, the FASB issued new accounting guidance to clarify the definition of a business and provide additional guidance to assist entities with evaluating whether transactions should be accounted for as asset acquisitions (or asset disposals) or business combinations (or disposals of a business). Under this new guidance, an entity first determines whether substantially all of the fair value of the assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If this criterion is met, the transaction should be accounted for as an asset acquisition as opposed to a business combination. This distinction is important because the accounting for an asset acquisition significantly differs from the accounting for a business combination. This new guidance eliminates the requirement to evaluate whether a market participant could replace missing elements (e.g. inputs or processes), narrows the definition of outputs and requires that a business include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs. We adopted this guidance in the first quarter of 2018 and it will be applied prospectively to any transactions occurring within and after the adoption date. The adoption did not have an impact on our consolidated financial statements and related disclosures.

In November 2016, the FASB issued new accounting guidance on the classification and presentation of restricted cash in the statement of cash flows to address the diversity in practice. This new guidance requires entities to show changes in cash, cash equivalents and restricted cash on a combined basis in the statement of cash flows. In addition, this accounting guidance requires a reconciliation of the total cash, cash equivalent and restricted cash in the statement of cash flows to the related captions in the balance sheet if cash, cash equivalents and restricted cash are presented in more than one line item in the balance sheet. We adopted this guidance in the first quarter of 2018 and applied it retrospectively to all prior periods presented in the financial statements as required under the new guidance. The adoption did not have a material impact on our consolidated financial statements and related disclosures.

In October 2016, the FASB issued new accounting guidance on income tax accounting associated with intra-entity transfers of assets other than inventory. This accounting update, which is part of the FASB's simplification initiative, is intended to reduce diversity in practice and the complexity of tax accounting, particularly for those transfers involving intellectual property. This new guidance requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. We adopted this new guidance in the first quarter of 2018 on a modified retrospective basis. Accordingly, we recognized the cumulative effect of initial application of this new guidance as an adjustment to the opening balance of retained earnings, which was not material to our consolidated financial statements.

In August 2016, the FASB issued new accounting guidance which clarifies how companies present and classify certain cash receipts and cash payments in the statement of cash flows. The new guidance specifically addresses the following cash flow topics in an effort to reduce diversity in practice: (1) debt prepayment or debt extinguishment costs; (2) settlement of zero-coupon bonds; (3) contingent consideration payments made after a business combination; (4) proceeds from the settlement of insurance claims; (5) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (6) distributions received from equity method investees; (7) beneficial interests in securitization transactions; and (8) separately identifiable cash flows and application of the predominance principle. We adopted this new guidance in the first quarter of 2018 retrospectively and the adoption did not have an impact on our consolidated financial statements and related disclosures.

In January 2016, the FASB issued new accounting guidance which amends the standard on the recognition and measurement of financial instruments. The FASB clarified certain aspects of this guidance by issuing an update for technical corrections and improvements related to this guidance in February 2018. The guidance (1) requires an entity to measure equity investments (except those accounted for under the equity method or those that result in consolidation of the investee) at fair value with changes in fair value recognized in net income rather than accumulated other comprehensive income on the balance sheet; (2) allows an entity to elect to measure the equity investments that do not have a readily determinable fair value using a new measurement alternative which measure these equity investments at cost less impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer; (3) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment; and (4) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s evaluation of their other deferred tax assets. We adopted this guidance in the first quarter of 2018 and elected to prospectively account for our investments in equity securities of privately-held companies that do not have a readily determinable fair value using the measurement alternative. The adoption did not have a material impact on our consolidated financial statements and related disclosures.

In May 2014, the FASB issued new accounting guidance on revenue from contracts with customers, or ASC 606, Revenue from Contracts with Customers (“ASC 606”), which replaced numerous requirements in GAAP, and provides companies with a single model for recognizing revenue from contracts with customers. The core principle of the new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This guidance also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In addition, the FASB has also issued several amendments to the standard, which clarifies certain aspects of the guidance, including principal versus agent considerations and identifying performance obligations.

In the first quarter of 2018, we adopted ASC 606 under the modified retrospective method for all contracts that were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under the new revenue guidance, while prior period amounts are not adjusted and continue to be reported in accordance with our previous accounting policies under the historical revenue guidance, or ASC 605, Revenue Recognition.

We evaluated each of our revenue streams and applied ASC 606 as further discussed in “Note 4: Revenue Recognition.” As a result of adoption of the new revenue guidance, certain revenue streams, such as our hotel instant booking revenue recorded under the consumption model which we previously recorded upon completion of the traveler stay, is now recognized upon booking. The amount of the recognized transaction price for the commission is recorded as revenue net of the impact of estimated cancellations. We also recorded an adjustment to capitalize certain costs to obtain contracts for existing arrangements as of the implementation date. We expect the adoption of this new revenue standard will not have a material impact, either on an annual or quarterly basis, to our consolidated financial statements on an ongoing basis. Our systems and internal controls were not significantly impacted as a result of the accounting changes and we have made the necessary changes to our accounting policies and internal processes to support the new revenue recognition standard, including the related disclosures.

We recognized the cumulative effect of initial application of ASC 606 as an adjustment to the opening balance of retained earnings. We recorded a net increase in opening retained earnings of $4 million as of January 1, 2018 due to the cumulative impact of adoption of the new revenue guidance and all other accounts were not materially impacted.