Document and Entity Information Abstract Document And Entity Information [Abstract] Statement [Table] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Common Class B [Member] Class B Common Stock [Member] Common Stock [Member] Common Stock [Member] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Statements Of Operations [Abstract] Sales Revenue Net Revenue Revenue Costs and expenses: Cost of revenue Cost of revenue (1) Cost of revenue Cost of Revenue, Total Selling and marketing Selling and marketing (1) Selling and marketing Selling and marketing (including $51,361 and $53,944 with a related party) Selling and Marketing Expense, Total Sale and marketing expense Technology and Content Expense. Technology And Content Expense Technology and content (1) Technology and content Technology and content General and administrative General and administrative (1) General and administrative General and Administrative Expense, Total Amortization of intangible assets Amortization of intangible assets Amortization of intangible assets Amortization of Intangible Assets, Total Legal Reserves Occupancy Tax And Other Legal Reserves Occupancy Tax And Other Legal reserves, occupancy tax and other Legal reserves, occupancy tax and other Operating income Operating income Operating income (loss) Operating income Operating income (loss) Other Income (Expense) Other income (expense): Interest income Interest income Interest Expense Interest expense Interest expense and amortization of debt issuance and discount costs Interest Expense, Total Other Nonoperating Income (Expense) Other, net Total Other, net Total other expense, net Total other income (expense), net Total other expense, net Other expense, net Income before income taxes Income before income taxes Income from continuing operations before income taxes Income from continuing operations before income taxes Income before income taxes Provision for income taxes Provision for income taxes Income tax expense Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Income (loss) from continuing operations Income (loss) before income taxes Income from continuing operations Net Income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Discontinued operations, net of taxes Net income (loss) Less: Discontinued operations, net of tax Net income (loss) Net income (loss) Net income (loss) Net income (loss) attributable to Expedia, Inc. Net income (loss) Net income (loss) Net (income) loss attributable to noncontrolling interests Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest, Total Net income attributable to noncontrolling interests Net income attributable to Expedia, Inc. Net income Net income (loss) attributable to Expedia, Inc. Net income (loss) Net income (loss) attributable to Expedia, Inc. Income Amounts Attributable to Parent, Disclosures [Abstract] Amounts attributable to Expedia, Inc.: Income (Loss) from Continuing Operations Attributable to Parent Income from continuing operations Income (Loss) from Continuing Operations Attributable to Parent, Total Income from continuing operations attributable to Expedia, Inc. Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Discontinued operations, net of taxes Net income (loss) attributable to discontinued operations Earnings Per Share, Basic, Other Disclosures [Abstract] Earnings per share from continuing operations attributable to Expedia, Inc. available to common stockholders: Income (Loss) from Continuing Operations, Per Basic Share Basic Income (Loss) from Continuing Operations, Per Outstanding Share, Total Basic earnings per share - continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Diluted Diluted earnings per share - continuing operations Earnings Per Share [Abstract] Earnings (loss) per share attributable to Expedia, Inc. available to common stockholders: Earnings Per Share, Basic Basic earnings per share Basic Earnings Per Share, Basic, Total Basic earnings per share - Expedia, Inc. Earnings Per Share, Diluted Diluted earnings per share Diluted Earnings Per Share, Diluted, Total Diluted earnings per share - Expedia, Inc. Shares used in computing earnings per share: Shares used in computing earnings per share: Weighted average number of shares outstanding: Weighted Average Number of Shares Outstanding, Basic Basic Basic - weighted average outstanding Weighted Average Number of Shares Outstanding, Basic, Total Weighted average number of shares outstanding, Basic Weighted Average Number of Shares Outstanding, Diluted Diluted Diluted - weighted average outstanding Weighted average number of shares outstanding, Diluted Weighted average number of shares outstanding, diluted Dividends declared per common share Quarterly cash dividend declared Related Party Selling And Marketing Expense Related Party Selling And Marketing Expense Selling and marketing with a related party Share Based Compensation Cost Of Revenue Share Based Compensation Cost Of Revenue Stock-based compensation, Cost of revenue Share based Compensation Selling and Marketing Expense Share Based Compensation Selling And Marketing Expense Stock-based compensation, Selling and marketing Share based Compensation Technology and Content Expense Share Based Compensation Technology And Content Expense Stock-based compensation, Technology and content Share Based Compensation General And Administrative Expense Share Based Compensation General And Administrative Expense Stock-based compensation, General and administrative Consolidated Statements Of Comprehensive Income [Abstract] Other comprehensive income, net of tax Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax Currency translation adjustments Currency translation adjustments Currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Currency translation adjustments Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gains (losses) on available for sale securities, net of taxes Unrealized gains (losses) on available for sale securities, net of taxes Unrealized gain on securities available for sale Unrealized gains (losses) on available for sale securities, net of taxes Other Comprehensive Income (Loss), Net of Tax Period Increase Decrease Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Less: Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Less: Comprehensive income attributable to noncontrolling interests Comprehensive income attributable to Expedia, Inc. Comprehensive income (loss) attributable to Expedia, Inc. Comprehensive income attributable to Expedia, Inc. Consolidated Balance Sheets [Abstract] ASSETS Current assets: Cash and cash equivalents Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value, Total Restricted cash and cash equivalents Short-term investments Short-term Investments, Total Accounts receivable, net of allowance of $13,537 and $12,114 Accounts receivable, net of allowance of $9,050 and $7,959 Accounts Receivable, Net, Current, Total Prepaid expenses and other current assets Prepaid Expense and Other Assets, Total Prepaid expenses and other current assets Assets of Disposal Group, Including Discontinued Operation, Current Current assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Current, Total Current assets of discontinued operations Total current assets Total current assets Property Plant And Equipment Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Property and equipment, net Property and equipment, net Long-term investments and other assets Other Assets, Noncurrent, Total Intangible assets, net Intangible Assets, Net (Excluding Goodwill), Total Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total TOTAL ASSETS TOTAL ASSETS TOTAL ASSETS TOTAL ASSETS LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Accounts Payable Merchant. Accounts Payable Merchant Accounts payable, merchant Accounts payable, other Accounts Payable, Current, Total Deferred Merchant Bookings. Deferred merchant bookings Deferred Revenue, Current Deferred Revenue, Current, Total Deferred revenue Accrued expenses and other current liabilities Accrued Liabilities, Current, Total Liabilities of Disposal Group, Including Discontinued Operation, Current Current liabilities of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation, Current, Total Current liabilities of discontinued operations Total current liabilities Total current liabilities Long-term debt Senior unsecured notes outstanding Long-term Debt, Excluding Current Maturities, Total Deferred income taxes, net Other long-term liabilities Other liabilities Other Liabilities, Noncurrent, Total Commitments And Contingencies 2009 Commitments and contingencies Stockholders' equity: Common Stock Value Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, value Common Stock, Value, Issued, Total Common stock $.001 par value Authorized shares: 1,600,000 Shares issued: 0 and 342,812 Shares outstanding: 0 and 263,929 Additional Paid In Capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Additional paid-in capital Treasury stock - Common stock, at cost Shares: 102,445 and 100,069 Treasury stock-Common stock, at cost Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Retained earnings (deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated other comprehensive loss Total Expedia, Inc. stockholders' equity Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total Expedia, Inc. stockholders' equity Minority Interest Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Total Noncontrolling interest Total stockholders' equity Balance, value Balance, value Total stockholders' equity Stockholders' equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Accounts receivable, allowance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Common stock, par value Common stock, shares authorized Common stock, shares issued Common Stock, Shares, Issued, Total Common stock, shares outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Treasury stock - Common stock, shares Treasury Stock, Shares, Ending Balance Treasury Stock, Shares, Beginning Balance Consolidated Statements Of Cash Flows [Abstract] Operating activities: Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income from continuing operations to net cash provided by operating activities: Depreciation of property and equipment, including internal-use software and website development Depreciation Depreciation, Total Amortization of stock-based compensation Stock-based compensation Total stock-based compensation Total stock-based compensation Amortization of stock-based compensation Deferred income taxes Deferred income tax (benefit) expense Foreign Exchange Gain Loss On Cash Cash Equivalents And Short Term Investments Net Foreign Exchange Gain Loss On Cash Cash Equivalents And Short Term Investments Net Foreign exchange gain on cash, cash equivalents and short-term investments, net Realized gain on foreign currency forwards Realized gain on foreign currency forwards Other Other Other Noncash Income (Expense), Total Changes in operating assets and liabilities, net of effects from acquisitions: Accounts receivable Accounts receivable Prepaid merchant bookings, prepaid expenses and other current assets Prepaid expenses and other current assets Increase Decrease In Accounts Payable Merchant. Increase Decrease In Accounts Payable Merchant Accounts payable, merchant Accounts payable, other, accrued expenses and other current liabilities Increase Decrease In Deferred Merchant Bookings. Increase Decrease In Deferred Merchant Bookings Deferred merchant bookings Deferred merchant bookings Deferred revenue Deferred revenue Net cash provided by operating activities from continuing operations Net cash provided by operating activities from continuing operations Investing activities: Capital expenditures, including internal-use software and website development Capital expenditures, including internal-use software and website development Payments to Acquire Property, Plant, and Equipment, Total Purchases of investments Purchases of investments Payments to Acquire Investments, Total Sales and maturities of investments Sales and maturities of investments Sales and maturities of investments Proceeds from Sale and Maturity of Other Investments, Total Maturities of investments Net settlement of foreign currency forwards Net settlement of foreign currency forwards Payments for (Proceeds from) Derivative Instrument, Financing Activities, Total Other, net Other, net Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities from continuing operations Net cash used in investing activities from continuing operations Net Cash Provided by (Used in) Investing Activities Financing activities: Treasury stock activity Treasury stock activity Payment of dividends to stockholders Payment of dividends to stockholders Payments of Dividends, Total Proceeds from exercise of equity awards Proceeds from exercise of equity awards Excess tax benefit on equity awards Changes in restricted cash and cash equivalents Proceeds From Payments For Other Financing Activities Other, net Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Net cash provided by (used in) financing activities from continuing operations Net cash used in financing activities from continuing operations Net cash used in financing activities from continuing operations Net Cash Provided by (Used in) Continuing Operations Net cash provided by (used in) continuing operations Net cash provided by (used in) continuing operations Net cash provided by continuing operations Net cash provided by continuing operations Net Cash Provided by (Used in) Discontinued Operations Net cash provided by (used in) discontinued operations Net cash provided by (used in) from discontinued operations Net cash provided by (used in) discontinued operations Net cash provided by discontinued operations Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents, Total Net increase in cash and cash equivalents Net increase in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Supplemental cash flow information Cash paid for interest Cash paid for interest from continuing operations Interest Paid, Total Income tax payments, net Income tax payments (refunds), net from continuing operations Income Taxes Paid, Net, Total Basis Of Presentation [Abstract] Organization Consolidation And Presentation Of Financial Statements Disclosure Text Block Basis Of Presentation Summary Of Significant Accounting Policies [Abstract] Significant Accounting Policies Text Block Summary Of Significant Accounting Policies Acquisitions And Dispositions [Abstract] Mergers, Acquisitions and Dispositions Disclosures [Text Block] Acquisitions And Dispositions Fair Value Measurements [Abstract] Fair Value Measurement Inputs Disclosure Text Block Fair Value Measurements Debt [Abstract] Debt Disclosure Text Block Debt Stockholders' Equity [Abstract] Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Earnings Per Share Text Block Earnings Per Share Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Commitments And Contingencies [Abstract] Commitments And Contingencies Disclosure Text Block Commitments And Contingencies Commitments and Contingencies Related Party Transactions [Abstract] Related Party Transactions Disclosure [Text Block] Related Party Transactions Segment Information [Abstract] Segment Reporting Disclosure Text Block Segment Information Guarantor And Non Guarantor Supplemental Financial Information [Abstract] Guarantor And Non-Guarantor Supplemental Financial Information [Abstract] Guarantor And Non-Guarantor Supplemental Financial Information [Text Block] Guarantor And Non-Guarantor Supplemental Financial Information [Text Block] Guarantor And Non-Guarantor Supplemental Financial Information Use of Estimates, Policy [Policy Text Block] Accounting Estimates Reclassifications [Policy Text Block] Reclassifications [Policy Text Block] Reclassifications Derivatives, Reporting of Derivative Activity [Policy Text Block] Derivatives Policy Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Schedule Of Revenue And Income For The Discontinued Operations Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis [Table Text Block] Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis Schedule of Long-term Debt Instruments [Text Block] Long-Term Debt Outstanding Tabular disclosure of all or some of the information related to dividends declared and paid as of the financial reporting date. Schedule Of Dividends Declared Text Block Summary Of Dividends Declared Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used Weighted Average Assumptions Of Black-Scholes Option-Pricing Model Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Basic And Diluted Earnings Per Share Schedule of Segment Reporting Information, by Segment [Text Block] Operating Segment Information Schedule Of Statement Of Operations Information [Table Text Block] Schedule Of Statement Of Operations Information [Table Text Block] Schedule Of Statement Of Operations Information Schedule Of Balance Sheet Information [Table Text Block] Schedule Of Balance Sheet Information [Table Text Block] Schedule Of Balance Sheet Information Schedule Of Cash Flow Statement Information [Table Text Block] Schedule Of Cash Flow Statement Information [Table Text Block] Schedule Of Cash Flow Statement Information Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Eight Point Five Percent Senior Notes Due On Two Zero One Six [Member] Eight Point Five Percent Senior Notes Due On Two Zero One Six [Member] 8.5% Senior Notes Due 2016 [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Other Travel Media Brands Other Travel Media Brands Other travel media brands from spin-off Long-term Debt, Gross Senior unsecured notes principal amount Debt Instrument, Interest Rate, Stated Percentage Senior notes, interest rate Maturity date. Maturity Date Senior notes, maturity date Percentage Of Redemption Price Percentage Of Redemption Price Percentage of redemption price Long term debt maturities repayments of principal and accrued interest on notes. Long Term Debt Maturities Repayments Of Principal And Accrued Interest On Notes Redemption of senior notes and accrued interest on senior notes Gains (Losses) on Extinguishment of Debt Loss from early extinguishment of debt, pre-tax Gains (Losses) on Extinguishment of Debt, Total Extinguishment of Debt, Gain (Loss), Net of Tax Loss from early extinguishment of debt, net of tax Extinguishment of Debt, Gain (Loss), Net of Tax, Total Senior Note Redemption Premium Senior Note Redemption Premium Redemption premium of senior note Write off of Deferred Debt Issuance Cost Write-off of unamortized debt issuance and discount costs Extinguishment of Debt, Gain (Loss), Income Tax Tax benefit related to loss on the extinguishment of debt Disposal Group, Including Discontinued Operation, Revenue Revenue Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Income (loss) before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax, Total Discontinued Operation, Tax Effect of Discontinued Operation Provision for income taxes Provision for income taxes Discontinued Operation, Tax Effect of Discontinued Operation, Total Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Net income attributable to noncontrolling interest Net income attributable to noncontrolling interest Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Earnings (loss) per share Basic Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Share, Total Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Earnings (loss) per share Diluted Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share, Total Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Investment Type [Axis] Investment Type Categorization [Member] Investment Type Categorization [Domain] Foreign Exchange Forward [Member] Foreign Currency Forward Contracts [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Available-for-sale Securities, Current Available for sale investments, short-term Available-for-sale Securities, Current, Total Available-for-sale Securities, Noncurrent Available for sale investments, long-term Available-for-sale Securities, Noncurrent, Total Available-for-sale Securities, Gross Unrealized Gains Gross unrealized gains Available-for-sale Securities, Gross Unrealized Gains, Total Available-for-sale Securities, Gross Unrealized Losses Gross unrealized losses Available-for-sale Securities, Gross Unrealized Losses, Total Time Deposits Time deposits, held by company's majority-owned subsidiaries Time Deposits, Total Notional Amount of Fair Value Hedge Instruments Notional amount of foreign currency derivatives Accrued Liabilities Current Net Forward Contract Liability Foreign currency forward contracts, Liabilities Net forward liability Foreign currency forward contracts, liabilities Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Net forward asset Foreign currency forward contracts, Assets Other Comprehensive Income, Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Net gains from foreign currency forward contracts Net gains (losses) from foreign currency forward contracts Fair Value, Option, Qualitative Disclosures Related to Election, by Eligible Item or Group [Axis] Fair Value Option Eligible Item Or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Fair Value Option Other Eligible Items [Member] Fair Value Option, Other Eligible Items [Member] Money Market Funds [Member] Money Market Funds [Member] Bank Time Deposits [Member] Time Deposits [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value Inputs Level2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets Measured On Recurring Basis Cash Equivalents Fair Value Assets Measured On Recurring Basis Cash Equivalents Cash equivalents Fair Value, Measured on Recurring Basis, Investments Investments Corporate debt securities Fair Value, Assets Measured on Recurring Basis, Trading Account Assets Total Assets Total assets Schedule of Long-term Debt Instruments [Table] Line of Credit Facility [Axis] Line Of Credit Facility Lender [Domain] Line of Credit Facility, Lender [Domain] Credit Facility [Member] Credit Facility [Member] Credit Facility [Member] Seven Point Four Five Six Percent Senior Notes Due On Two Zero One Eight [Member] Seven Point Four Five Six Percent Senior Notes Due On Two Zero One Eight [Member] 7.456% Senior Notes Due 2018 [Member] Five Point Nine Five Percent Senior Notes Due On Two Zero Two Zero [Member] Five Point Nine Five Percent Senior Notes Due On Two Zero Two Zero [Member] 5.95% Senior Notes Due 2020 [Member] Debt Instrument [Line Items] Senior Notes Issued Price Percentage Senior Notes Issued Price Percentage Senior notes issued price percentage Redemption at option of holder. Redemption At Option Of Holder Redemption at option of holder Redemption at option of Company Redemption At Option Of Company Redemption at option of Company Senior notes redemption price percentage at the option of holder. Repayment of senior debt percentage holder option Senior notes redemption price percentage at the option of holder Accrued Interest Senior Notes Accrued Interest Senior Notes Accrued interest related to senior notes Debt Instrument, Fair Value Fair value of senior notes Line of Credit Facility, Maximum Borrowing Capacity Unsecured revolving credit facility Line of Credit Facility, Interest Rate Description Interest, on drawn amount Line of Credit Facility, Commitment Fee Description Commitment fee on undrawn amounts Line of Credit Facility, Expiration Date Line of credit facility, expiration date Letters of credit outstanding Letters of credit issued under the credit facility Basis points added to LIBOR rate. Basis points added to LIBOR rate Basis points on undrawn amounts Basis points on undrawn amounts Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Report Date [Axis] Default Financial Statements Date [Member] Financial Statements Date [Domain] Q Two Two Thousand Twelve [Member] Q Two Two Thousand Twelve [Member] Q2 2012 [Member] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Repurchase Of Equity [Member] Repurchase Of Equity [Member] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Restricted Stock Units R S U [Member] Restricted Stock Units (RSUs) [Member] Stock Option [Member] Stock Option [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Dividends Payable, Date Declared, Day, Month and Year Declaration Date Dividends declaration date Cash dividends Dividends Per Share Dividends per share Dividends Payable, Date of Record, Day, Month and Year Record Date Dividends record date Stock Repurchase Program Number Of Shares Authorized To Be Repurchased Authorized share repurchase Treasury Stock, Value, Acquired, Cost Method Common stock repurchases, value Stock repurchased, value Treasury stock activity related to vesting of equity instruments, value Treasury Stock, Shares, Acquired Common stock repurchases, shares Stock repurchased, shares Treasury Stock Acquired, Average Cost Per Share Average repurchase price per share Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Restricted stock unit vested years Vesting period, years The number of shares reserved for issuance under stock based awards agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including options and RSU. Share-Based Compensation Arrangement By Share-Based Payment Award Options And RSU Outstanding Number Stock-based awards outstanding, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options, Balance as of December 31 Options, Balance as of January 1 Stock-based awards outstanding, shares Stock-based awards, options to purchase Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted Average Exercise Price, December 31 Weighted Average Exercise Price, January 1 Stock-based awards outstanding, weighted average exercise price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Remaining Contractual Life (In years), Balance as of December 31, 2011 Stock-based awards outstanding, weighted average remaining life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted Stock Units, Balance as of December 31 Restricted Stock Units, Balance as of January 1 Restricted stock units outstanding Stock-based awards outstanding, RSU shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Options, Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total Stock-based awards, grants Class of Warrant or Right, Outstanding Privately held warrants outstanding, shares Common stock acquired in exercise of warrants. Common Stock Acquired In Exercise Of Warrants Common stock acquired in exercise of warrants Weighted average exercise price of warrants Weighted average exercise price of warrants Investment warrant expiration date. Investment Warrant Expiration Date Investment warrants expiration date Dividends Payable [Table] Q One Two Thousand Twelve [Member] Q One Two Thousand Twelve [Member] Q1 2012 [Member] Q1 2011 [Member] Q One Two Thousand Eleven [Member] Q1 2011 [Member] Dividends Payable [Line Items] The aggregate amount of dividends paid during the period. Dividends Paid Amount Total Amount Dividends Declared, Date Paid, Month, Day and Year. Dividends Declared Date Paid Month Day And Year Payment Date Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividend yield Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-average estimated fair value of options granted Earnings Per Share, Basic and Diluted [Abstract] Earnings per share attributable to Expedia, Inc. available to common stockholders: Earnings per share from continuing operations attributable to Expedia, Inc. available to common stockholders: Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options using the treasury stock method. Incremental Common Shares Attributable To Call Options Options to purchase common stock Incremental Common Shares Attributable to Other Dilutive Securities Incremental Common Shares Attributable to Other Dilutive Securities Other dilutive securities Effective Income Tax Rate, Continuing Operations Effective Income Tax Rate, Continuing Operations, Total This element represents the number of lawsuits in which the reporting entity was involved. Loss Contingency Number of Lawsuits Approximate number of lawsuits brought by or against cities and counties over issues involving the payment of hotel occupancy and other taxes Number of lawsuits filed by cities, counties and states involving hotel occupancy taxes Loss contingency number of lawsuits currently active. Loss Contingency Number Of Lawsuits Currently Active Number of lawsuits currently active Number of municipal lawsuits dismissed to date Loss Contingencies Number Of Dismissed Cases Number of lawsuits dismissed to date Dismissal findings. Dismissal Based On Finding Not Subject To Tax Number of dismissals based on finding that defendant was not subject to local hotel occupancy tax or the local government lacked standing to pursue claims Loss Contingency Accrual, at Carrying Value Loss Contingency Accrual, at Carrying Value, Ending Balance Loss Contingency Accrual, at Carrying Value, Beginning Balance Reserve for potential settlement of issues related to hotel occupancy taxes Accrual related to court decisions and final settlements related to hotel occupancy taxes. Accrual Related To Court Decisions And Final Settlements Additional accrual on loss contingency Accrual related to court decisions and final settlements related to hotel occupancy taxes Represents tax assessment issued by the tax authority including interest and penalties. Loss contingency tax interest and penalties assessed Occupancy tax assessments including interest and penalties Loss Contingency, Damages Sought, Value Loss contingency sought value Schedule of Related Party Transactions, by Related Party [Table] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual [Axis] Title Of Individual With Relationship To Entity [Domain] Title of Individual with Relationship to Entity [Domain] Board Of Directors Chairman [Member] Board Of Directors Chairman [Member] Related Party Transactions, by Related Party [Axis] Related Party [Domain] Related Party [Domain] TripAdvisor Inc. [Member] Tripadvisor Inc [Member] TripAdvisor Inc. [Member] Related Party Transaction [Line Items] Combined voting power of outstanding capital stock controlled. Combined Voting Power of O S Capital Stock Combined voting power Percentage of board members to be elected by separate class vote. Percentage Of Board Members To Be Elected By Separate Class Vote Percentage of board members to be elected by separate class votes Various Commercial Agreements Maximum Term Various Commercial Agreements Maximum Term Various commercial agreement, maximum term in years Related Party Transaction, Other Revenues from Transactions with Related Party Revenue recognized related to agreements with TripAdvisor Related Party Transaction, Amounts of Transaction Amount paid to TripAdvisor Due to Related Parties, Current Amounts payable Due to Related Parties, Current, Total Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Segment [Domain] Segment [Domain] Corporate [Member] Corporate [Member] Corporate [Member] Leisure [Member] Leisure [Member] Leisure [Member] Egencia [Member] Egencia [Member] Egencia [Member] Segment Reporting Information [Line Items] Segment Reporting Reportable Segments Segment Reporting Reportable Segments Number of reportable segments Adjusted earnings before income tax depreciation amortization Adjusted Earnings Before Income Tax Depreciation Amortization Adjusted EBITDA Realized (gain) loss on revenue hedges. Realized Gain Loss On Revenue Hedges Realized gain on revenue hedges Realized (gain) loss on revenue hedges Realized loss on revenue hedges Legal Entity [Axis] Entity [Domain] Entity [Domain] Parent Company [Member] Parent [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Non Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Consolidation Eliminations [Member] Eliminations [Member] Intercompany income expense net Intercompany (income) expense net Intercompany (income) expense, net Income (Loss) from Equity Method Investments Equity in pre-tax earnings of consolidated subsidiaries Income (Loss) from Equity Method Investments, Total Other Operating Income Other, net Equity Method Investments Investment in subsidiaries Equity interest to fair value recognized Other Assets Other assets, net Other Assets, Total Other Liabilities Other liabilities Other Liabilities, Total Other Investing Activities Other Investing Activities Other, net Other, net Transfers to from related parties Transfers (to) from related parties Other Financing Activities Other Financing Activities Other, net Other, net