Goodwill Disclosure [Line Items] Other Other Revenues Other Revenues include licensing fees and mobile revenues and other revenues not included in subscription or advertising revenue Amounts related to securities litigation and government investigations, net of recoveries Securities Litigation And Government Investigation Costs Net Of Recoveries Securities Litigation And Government Investigation Costs Net Of Recoveries are litigation costs incurred by Time Warner on AOL's behalf prior to spin-off Balance Sheet Parenthetical [Abstract] Amounts related to securities litigation and government investigations, net of recoveries Securities Litigation And Government Investigation Costs Net Of Recoveries Increase Decrease Amounts related to securities litigation and government investigations, net of recoveries Changes in operating assets and liabilities, net of acquisitions The net change during the reporting period in the value of other assets or liabilities used in operating activities, that are not otherwise defined in the taxonomy, net of acquisitions. Changes In Operating Assets And Liabilities Net Of Acquisitions Cash and equivalents at end of period Cash and equivalents at beginning of year Cash And Equivalents At End Of Period Capital expenditures and product development costs Capital Expenditures And Product Development Costs Capital expenditures and product development costs Deconsolidation of variable interest entity Deconsolidation Of Noncontrolling Interest Spin-off deferred tax adjustments Deferred Tax Adjustment From Spin Off Other Other Adjustments To Additional Paid In Capital Divisional Equity Divisional Equity [Member] Income Per Common Share Text Block [Abstract] Acquisitions Dispositions And Other Significant Transactions [Line Items] Business Acquisitions Dispositions And Other Significant Transactions [Text Block] Income Taxes Disclosure [Abstract] Stockholders Equity Disclosure [Line Items] All stock classes reported by a business entity (for example, common stock, preferred stock etc.) Equity Based Compensation And Employee Benefit Plans [Text Block] Restructuring Costs Disclosure [Line Items] Segment Information Disclosure [Abstract] Gain Loss On Sale Of Investments Assets And Consolidated Businesses Net (Gain) loss on step acquisition and disposal of assets, net Tax Withholdings Restricted Stock Units Tax withholdings related to net share settlements of restricted stock units (In millions, except per share amounts) Net Transactions With Parent Net transactions with Time Warner Distribution To Parent Distribution to Time Warner Reclassification Of Divisional Equity Reclassification of divisional equity to additional paid-in capital Goodwill By Type [Axis] Type Of Goodwill [Domain] Gross Goodwill [Member] Impairments [Member] Net Goodwill [Member] Business Acquisition Fair Value Of Unvested Stock Options Converted To Acquiror Stock Compensation Expense Business Acquisition Fair Value Of Unvested Stock Options Converted To Acquiror Stock Restructuring Charge Income Tax Expense Benefit From Disposition Activites The sum of the current income tax expense or benefit and the deferred income tax expense or benefit on the loss on sale. Acquisitions [Table] Acquisition By Company [Axis] Company Acquired [Domain] Income Tax Benefit From Worthless Stock Deduction Income Tax Benefit Escrow Disbursements Income Tax Expense Benefit Discontinued Operations Stock Authorized All Classes Stockholders' Equity [Table] Equity Transactions By Entity [Axis] Equity Transaction Entity [Domain] StudioNow Inc. [Member] Patch [Member] Compensation Expense Pre Combination Service Share-based compensation expense associated with stock options converted as the result of a business combination. This expense is associated with services rendered prior to the business combination. Share Based Compensation Expense Accelerated Vesting Share-based compensation expense recognized during the period as a result of accelerated vesting. ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfFullValueAwardsForGrantUnderPlan Maximum number of full value awards that may be issued under the applicable plan document. Business Combination Employee Shares Converted Pre Conversion The amount of outstanding shares associated with the acquired company's stock incentive plan before the shares were converted to company stock in conjunction with the business combination. Business Combination Employee Shares Converted Post Conversion The amount of outstanding shares associated with the acquired company's stock incentive plan after the shares were converted to company stock in conjunction with the business combination. Employee Service Share Based Compensation Nonvested Option Awards Total Compensation Cost Not Yet Recognized As of the balance-sheet date, the aggregate unrecognized cost of stock options granted to employees under equity-based compensation awards that have yet to vest. Employee Service Share Based Compensation Nonvested Option Awards Total Compensation Cost Not Yet Recognized Period For Recognition The weighted average period over which unrecognized compensation is expected to be recognized for stock options issued under equity-based compensation plans, using a decimal to express in number of years. Employee Service Share Based Compensation Nonvested Awards Other Than Options Total Compensation Cost Not Yet Recognized As of the balance-sheet date, the aggregate unrecognized cost of awards other than stock options granted to employees under equity-based compensation awards that have yet to vest. Employee Service Share Based Compensation Nonvested Awards Other Than Options Total Compensation Cost Not Yet Recognized Period For Recognition The weighted average period over which unrecognized compensation is expected to be recognized for awards other than stock options issued under equity-based compensation plans, using a decimal to express in number of years. Other Exit Costs [Member] Revenue by Geography [Table] Revenue by Geography [Axis] Geographic Area [Domain] United States [Member] United Kingdom [Member] Germany [Member] Canada [Member] Other International [Member] Total Restructuring [Member] Total International [Member] Business Acquisition Fair Value Of Unvested Stock Options Converted To Acquiror Stock Control Premium Goodwill Control premium used for calcuating fair value for goodwill impairment testing. Current Foreign Tax Payable Adjustment Benefit Utilization Capital Loss Deferred Tax Asset Japan [Member] Adcom Japan [Member] Joint Venture Interest Purchased Percentage of interest purchased through an acquisition related to a joint venture. Joint Venture Interest Before Additional Acquisition Interest in joint venture before the acquisition completed during the current period. Gain Associated With Acquisition Of Additional Interest Gain recognized during the period as a result of the acquisition of additional interest in an entity. Payable Associated With Redemption Of Noncontrolling Interest Base Denominated In Holder Currency Base amount for calculating the payable association with the redemption of a noncontrolling interest denominated in the currency associated with the entity holding the interest. Payable Associated With Redemption Of Noncontrolling Interest Base Denominated In Entity Currency Base value of the payable associated with the redemption of noncontrolling interest in the entity's currency. Payable Associated With Redemption Of Noncontrolling Interest Threshold For Additional Amount Due Payable threshold used to calculate the payable associated with the redemption of a noncontrolling interest. Any amount in excess of this threshold would be payable upon the redemption of the noncontrolling interest. This amount due is in addition to any amounts due that are directly related to the value of the interest. Redeemable Noncontrolling Interest Put Option Redemption Value The redemption value of the put option associated with a redeemable noncontrolling interest as of the end of the period. Patent Agreement Number Of Patents Sold Number of patents sold as part of a sales agreement. Patent Agreement Price Total Total price for a patent sale agreement, including any fees associated with access to additional licenses to access retained patents. Patent Agreement Price Patents Sold Price associated with the sale of patents, excluding additional costs related to other components of the agreement. Patent Agreement Price Licenses Price per the patent agreement associated with the licenses to access patents owned by the company. Licensing Income Income from licensing of intellectual property Income from licensing of intellectual property Intellectual Property Carrying Value Carrying value of intellectual property as of the date specified Patent Transaction Pretax Income Income recognized in connection with the sale and licensing of patents. Patent Transaction Income Tax Expense Income tax expense associated with the sale and licensing of patents. Dutch Tender Offer Aggregate Purchase Price Authorized The amount authorized under a Dutch tender offer stock repurchase plan. Dutch Tender Offer Amount Available For Use From Previous Repurchase Plans Component of the amount authorized under a Dutch tender offer stock repurchase program that relates to unused amounts from previously approved plans. Dutch Tender Offer Purchase Price Per Share Range Equity Based Compensation Authorized Awards Per Participant Limit Tax Settlement Incremental Expense Recognized Comprehensive Income Excluding Portion Attributable To Noncontrolling Interest Comprehensive income (loss) Net Income Loss Excluding Portion Attributable To Redeemable Noncontrolling Interest Net income (loss) Unrealized Gain Loss On Equity Method Investments Unrealized gain on equity method investments Document Information [Abstract] Organization Consolidation And Presentation Of Financial Statements [Line Items] Goodwill Disclosure [Abstract] Acquisitions Dispositions And Other Significant Transactions [Abstract] Dutch Tender Offer Shares Purchased Dutch Tender Offer Amount Paid Per Share Dutch Tender Offer Total Amount Paid Accelerated Share Repurchase Amount Paid Including Dividends Dollar amount of cash paid to the bank for repurchases under an accelerated share repurchase program, including the estimated amount for any associated dividends. Accelerated Share Repurchase Amount Paid For Estimated Dividend Total cash paid to a bank for estimated dividends associated with shares under an accelerated share repurchase program. Accelerated Share Repurchase Shares Delivered Number of shares delivered to the company during the period as the result of an accelerated share repurchase program. Tax Asset Protection Plan Ownership Threshold The maximum ownership percentage of common stock the company is attempting to maintain as part of a tax asset protection plan. Preferred Stock Shares Authorized Designation Component of preferred stock shares authorized that have been designated as a specific class of preferred stock during the period. Preferred Stock Shares Authorized Designation Par Value Par value for the component of preferred stock shares authorized that have been designated as a specific class of preferred stock during the period. Accounts Receivable Net Accounts receivable, net of allowances of $7.2 and $8.3, respectively Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income (loss), net Acquired Finite Lived Intangible Assets By Major Class [Axis] Payments To Acquire Businesses Net Of Cash Acquired Investments and acquisitions, net of cash acquired Additional paid-in capital Additional Paid In Capital Restricted Stock Expense RSUs and PSUs Stock Option Plan Expense Stock options Advertising Advertising Revenue Allowance For Doubtful Accounts Receivable Current Amortization of intangible assets Amortization Of Intangible Assets Asset impairments and write-offs Asset Impairment Charges Current assets of discontinued operations Assets Of Disposal Group Including Discontinued Operation Current Assets Of Disposal Group Including Discontinued Operation Noncurrent Long-term assets of discontinued operations Assets Held For Sale Current Current assets held for sale Statement Of Financial Position Abstract Basic net income (loss) per common share Basic net income (loss) per common share Earnings Per Share Basic