Basis of Presentation	9 Months Ended
Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Description of Business Expedia, 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: Expedia.com®, Hotels.com®, Hotwire.com^TM, Travelocity®, Expedia® Affiliate Network, Classic Vacations®, Expedia Local Expert®, Egencia®, Expedia® CruiseShipCenters®, Venere.com^TM, trivago®, CarRentals.com^TM, Wotif Group, Orbitz Worldwide (“Orbitz”) acquired in September 2015, HomeAway® acquired in December 2015, and eLong^TM through its sale on May 22, 2015. In addition, many of these brands have related international points of sale, including those as part of AirAsia-Expedia upon our acquisition of a controlling interest in March 2015. We refer to Expedia, Inc. and its subsidiaries collectively as “Expedia,” the “Company,” “us,” “we” and “our” in these consolidated financial statements. Basis of Presentation These accompanying financial statements present our results of operations, financial position and cash flows on a consolidated basis. The unaudited consolidated financial statements include Expedia, 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 have eliminated significant intercompany transactions and accounts. We have prepared the accompanying unaudited consolidated financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial reporting. We have included all adjustments necessary for a fair presentation of the results of the interim period. These adjustments consist of normal recurring items. Our interim unaudited consolidated financial statements are not necessarily indicative of results that may be expected for any other interim period or for the full year. These interim unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2015, previously filed with the Securities and Exchange Commission. Accounting Estimates We use estimates and assumptions in the preparation of our interim unaudited 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 interim unaudited 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 interim unaudited 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; loyalty program liabilities; redeemable noncontrolling interests; acquisition purchase price allocations; stock-based compensation and accounting for derivative instruments. Reclassifications We have reclassified certain amounts related to our prior period results to conform to our current period presentation. Seasonality We generally experience seasonal fluctuations in the demand for our travel products and 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 holiday travel. The number of bookings typically decreases in the fourth quarter. Because revenue for most of our travel products, including merchant and agency hotel, is recognized when the travel takes place rather than when it is booked, revenue typically lags bookings by several weeks or longer. 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, are experienced in the second half of the year as selling and marketing costs offset revenue in the first half of the year as we aggressively market during the busy booking period for summer travel. As a result, revenue and income are typically the lowest in the first quarter and highest in the third quarter. The continued growth of our international operations or a change in our product mix, including the assimilation, growth and shift to more of a transaction-based business model for the vacation rental listing business of HomeAway, may influence the typical trend of the seasonality in the future.

Basis of Presentation

Description of Business

Expedia, 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: Expedia.com®, Hotels.com®, Hotwire.com^TM, Travelocity®, Expedia® Affiliate Network, Classic Vacations®, Expedia Local Expert®, Egencia®, Expedia® CruiseShipCenters®, Venere.com^TM, trivago®, CarRentals.com^TM, Wotif Group, Orbitz Worldwide (“Orbitz”) acquired in September 2015, HomeAway® acquired in December 2015, and eLong^TM through its sale on May 22, 2015. In addition, many of these brands have related international points of sale, including those as part of AirAsia-Expedia upon our acquisition of a controlling interest in March 2015. We refer to Expedia, Inc. and its subsidiaries collectively as “Expedia,” the “Company,” “us,” “we” and “our” in these consolidated financial statements.

Basis of Presentation

These accompanying financial statements present our results of operations, financial position and cash flows on a consolidated basis. The unaudited consolidated financial statements include Expedia, 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 have eliminated significant intercompany transactions and accounts.

We have prepared the accompanying unaudited consolidated financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial reporting. We have included all adjustments necessary for a fair presentation of the results of the interim period. These adjustments consist of normal recurring items. Our interim unaudited consolidated financial statements are not necessarily indicative of results that may be expected for any other interim period or for the full year. These interim unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2015, previously filed with the Securities and Exchange Commission.

Accounting Estimates

We use estimates and assumptions in the preparation of our interim unaudited 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 interim unaudited 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 interim unaudited 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; loyalty program liabilities; redeemable noncontrolling interests; acquisition purchase price allocations; stock-based compensation and accounting for derivative instruments.

Reclassifications

We have reclassified certain amounts related to our prior period results to conform to our current period presentation.

Seasonality

We generally experience seasonal fluctuations in the demand for our travel products and 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 holiday travel. The number of bookings typically decreases in the fourth quarter. Because revenue for most of our travel products, including merchant and agency hotel, is recognized when the travel takes place rather than when it is booked, revenue typically lags bookings by several weeks or longer. 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, are experienced in the second half of the year as selling and marketing costs offset revenue in the first half of the year as we aggressively market during the busy booking period for summer travel. As a result, revenue and income are typically the lowest in the first quarter and highest in the third quarter. The continued growth of our international operations or a change in our product mix, including the assimilation, growth and shift to more of a transaction-based business model for the vacation rental listing business of HomeAway, may influence the typical trend of the seasonality in the future.