Basis Of Presentation	6 Months Ended
Jun. 30, 2013
Basis of Presentation [Abstract]
Business Description and Basis of Presentation [Text Block]	Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of Liberty Interactive Corporation and its controlled subsidiaries (collectively, "Liberty" or the "Company" unless the context otherwise requires). All significant intercompany accounts and transactions have been eliminated in consolidation. Liberty, through its ownership of interests in subsidiaries and other companies, is primarily engaged in the video and on-line commerce industries in North America, Europe and Asia. The accompanying (a) condensed consolidated balance sheet as of December 31, 2012, which has been derived from audited financial statements, and (b) the interim unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results for such periods have been included. Certain amounts included in the accompanying financial statements for 2012 have been reclassified and adjusted to conform to the 2013 financial statement presentation. During the current period, due to the increased level of activity, we changed the presentation of Net sales (purchases) of short term investments and other marketable securities to present gross amounts in the consolidated statement of cash flows, in order to conform to GAAP requirements. The results of operations for any interim period are not necessarily indicative of results for the full year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in Liberty's Annual Report on Form 10-K for the year ended December 31, 2012. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Liberty considers (i) fair value measurement, (ii) accounting for income taxes, (iii) assessments of other-than-temporary declines in fair value of its investments and (iv) estimates of retail-related adjustments and allowances to be its most significant estimates. Liberty holds investments that are accounted for using the equity method. Liberty does not control the decision making process or business management practices of these affiliates. Accordingly, Liberty relies on management of these affiliates to provide it with accurate financial information prepared in accordance with GAAP that Liberty uses in the application of the equity method. In addition, Liberty relies on audit reports that are provided by the affiliates' independent auditors on the financial statements of such affiliates. The Company is not aware, however, of any errors in or possible misstatements of the financial information provided by its equity affiliates that would have a material effect on Liberty's condensed consolidated financial statements. In September 2011, Liberty completed the split-off (the “Split-Off”) of its former wholly-owned subsidiary (then named Liberty Media Corporation), which at the time of the Split-Off held all of the businesses, assets and liabilities attributed to Liberty's then Capital and Starz tracking stock groups. In January 2013, this entity (now named Starz) spun-off (the “Spin-Off”) its former wholly-owned subsidiary, Liberty Media Corporation ("LMC"). Following the Split-Off and Spin-Off, Liberty, LMC and Starz each operate as separate publicly traded companies, none of which has any stock ownership, beneficial or otherwise, in the other. In connection with the Split-Off, Liberty entered a Reorganization Agreement, a Services Agreement, a Facilities Sharing Agreement and a Tax Sharing Agreement with the split-off entity (now known as Starz). All of these agreements, with the exception of the Tax Sharing Agreement, were assigned by Starz to LMC in connection with the Spin-Off. The Reorganization Agreement provides for, among other things, provisions governing the relationship between Liberty and LMC following the Split-Off, including certain cross-indemnities. Pursuant to the Services Agreement, LMC provides Liberty with certain general and administrative services including legal, tax, accounting, treasury and investor relations support. Liberty reimburses LMC for direct, out-of-pocket expenses incurred by LMC in providing these services and for Liberty's allocable portion of costs associated with any shared services or personnel based on an estimated percentage of time spent providing services to Liberty. Under the Facilities Sharing Agreement, LMC shares office space and related amenities at its corporate headquarters with Liberty. Under these various agreements, approximately $4 million and $8 million of allocated expenses were reimbursable by Liberty to LMC for the three and six months ended June 30, 2013, respectively, and approximately $2 million and $5 million for the three and six months ended June 30, 2012, respectively. The Tax Sharing Agreement provides for the allocation and indemnification of tax liabilities and benefits between Liberty and Starz and other agreements related to tax matters. With respect to the Split-Off, the IRS has examined the transaction, and during 2012, the IRS and Liberty Interactive entered into a Closing Agreement which provides that the Split-Off qualified for tax-free treatment to Liberty and Starz. In April 2013, the IRS completed its review of the Spin-Off and notified the parties that it agreed with the nontaxable characterization of the transaction. On December 11, 2012, we acquired approximately 4.8 million additional shares of common stock of TripAdvisor, Inc. ("TripAdvisor") (an additional 4% equity ownership interest), for $300 million, along with the right to control the vote of the shares of TripAdvisor's common stock and class B common stock we own. Following the transaction, we own approximately 22% of the equity and 57% of the total votes of all classes of TripAdvisor common stock. As this transaction resulted in Liberty gaining control of TripAdvisor, we applied the applicable purchase accounting guidance. The fair value of our ownership interest previously held and the fair value of the noncontrolling interest (Level 1) was determined based on the trading price of TripAdvisor common shares on the last trading day prior to our transaction. Additionally, the noncontrolling interest includes the fair value of TripAdvisor's fully vested options (Level 2) outstanding at the date of acquisition. Following the transaction date, TripAdvisor is a consolidated subsidiary with a 78% noncontrolling interest accounted for in equity and the condensed consolidated statements of operations. Other than a $30 million re-classification from the "Intangibles subject to amortization" line item to the "Trademarks" line item, there have been no significant changes to our purchase price allocation since December 31, 2012. The initial purchase price allocation is subject to change upon receipt of the final valuation analysis for TripAdvisor. The primary balances still subject to analysis are goodwill, tradenames and other intangibles subject to amortization.

Basis of Presentation

The accompanying condensed consolidated financial statements include the accounts of Liberty Interactive Corporation and its controlled subsidiaries (collectively, "Liberty" or the "Company" unless the context otherwise requires). All significant intercompany accounts and transactions have been eliminated in consolidation.

Liberty, through its ownership of interests in subsidiaries and other companies, is primarily engaged in the video and on-line commerce industries in North America, Europe and Asia.

The accompanying (a) condensed consolidated balance sheet as of December 31, 2012, which has been derived from audited financial statements, and (b) the interim unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results for such periods have been included. Certain amounts included in the accompanying financial statements for 2012 have been reclassified and adjusted to conform to the 2013 financial statement presentation. During the current period, due to the increased level of activity, we changed the presentation of Net sales (purchases) of short term investments and other marketable securities to present gross amounts in the consolidated statement of cash flows, in order to conform to GAAP requirements. The results of operations for any interim period are not necessarily indicative of results for the full year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in Liberty's Annual Report on Form 10-K for the year ended December 31, 2012.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Liberty considers (i) fair value measurement, (ii) accounting for income taxes, (iii) assessments of other-than-temporary declines in fair value of its investments and (iv) estimates of retail-related adjustments and allowances to be its most significant estimates.

Liberty holds investments that are accounted for using the equity method. Liberty does not control the decision making process or business management practices of these affiliates. Accordingly, Liberty relies on management of these affiliates to provide it with accurate financial information prepared in accordance with GAAP that Liberty uses in the application of the equity method. In addition, Liberty relies on audit reports that are provided by the affiliates' independent auditors on the financial statements of such affiliates. The Company is not aware, however, of any errors in or possible misstatements of the financial information provided by its equity affiliates that would have a material effect on Liberty's condensed consolidated financial statements.

In September 2011, Liberty completed the split-off (the “Split-Off”) of its former wholly-owned subsidiary (then named Liberty Media Corporation), which at the time of the Split-Off held all of the businesses, assets and liabilities attributed to Liberty's then Capital and Starz tracking stock groups. In January 2013, this entity (now named Starz) spun-off (the “Spin-Off”) its former wholly-owned subsidiary, Liberty Media Corporation ("LMC"). Following the Split-Off and Spin-Off, Liberty, LMC and Starz each operate as separate publicly traded companies, none of which has any stock ownership, beneficial or otherwise, in the other.

In connection with the Split-Off, Liberty entered a Reorganization Agreement, a Services Agreement, a Facilities Sharing Agreement and a Tax Sharing Agreement with the split-off entity (now known as Starz). All of these agreements, with the exception of the Tax Sharing Agreement, were assigned by Starz to LMC in connection with the Spin-Off. The Reorganization Agreement provides for, among other things, provisions governing the relationship between Liberty and LMC following the Split-Off, including certain cross-indemnities. Pursuant to the Services Agreement, LMC provides Liberty with certain general and administrative services including legal, tax, accounting, treasury and investor relations support. Liberty reimburses LMC for direct, out-of-pocket expenses incurred by LMC in providing these services and for Liberty's allocable portion of costs associated with any shared services or personnel based on an estimated percentage of time spent providing services to Liberty. Under the Facilities Sharing Agreement, LMC shares office space and related amenities at its corporate headquarters with Liberty. Under these various agreements, approximately $4 million and $8 million of allocated expenses were reimbursable by Liberty to LMC for the three and six months ended June 30, 2013, respectively, and approximately $2 million and $5 million for the three and six months ended June 30, 2012, respectively. The Tax Sharing Agreement provides for the allocation and indemnification of tax liabilities and benefits between Liberty and Starz and other agreements related to tax matters. With respect to the Split-Off, the IRS has examined the transaction, and during 2012, the IRS and Liberty Interactive entered into a Closing Agreement which provides that the Split-Off qualified for tax-free treatment to Liberty and Starz. In April 2013, the IRS completed its review of the Spin-Off and notified the parties that it agreed with the nontaxable characterization of the transaction.

On December 11, 2012, we acquired approximately 4.8 million additional shares of common stock of TripAdvisor, Inc. ("TripAdvisor") (an additional 4% equity ownership interest), for $300 million, along with the right to control the vote of the shares of TripAdvisor's common stock and class B common stock we own. Following the transaction, we own approximately 22% of the equity and 57% of the total votes of all classes of TripAdvisor common stock. As this transaction resulted in Liberty gaining control of TripAdvisor, we applied the applicable purchase accounting guidance. The fair value of our ownership interest previously held and the fair value of the noncontrolling interest (Level 1) was determined based on the trading price of TripAdvisor common shares on the last trading day prior to our transaction. Additionally, the noncontrolling interest includes the fair value of TripAdvisor's fully vested options (Level 2) outstanding at the date of acquisition. Following the transaction date, TripAdvisor is a consolidated subsidiary with a 78% noncontrolling interest accounted for in equity and the condensed consolidated statements of operations. Other than a $30 million re-classification from the "Intangibles subject to amortization" line item to the "Trademarks" line item, there have been no significant changes to our purchase price allocation since December 31, 2012. The initial purchase price allocation is subject to change upon receipt of the final valuation analysis for TripAdvisor. The primary balances still subject to analysis are goodwill, tradenames and other intangibles subject to amortization.