Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Cash and cash equivalents Cash and Cash Equivalents [Member] Other current assets Other Current Assets [Member] Accrued expenses and other liabilities Other Current Liabilities [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Money market funds Money Market Funds [Member] Foreign government treasury bills Foreign Government Treasury Bills [Member] This element represents foreign government treasury bills measured at fair value on a recurring basis. U.S. treasuries and government agency securities US Government Corporations and Agencies Securities [Member] Foreign currency forward contracts Foreign Exchange Forward [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Total assets at fair value Assets, Fair Value Disclosure Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Fair Value Measurements Fair Value Disclosures [Text Block] Earnings Per Share [Abstract] Schedule of computation of earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of antidilutive securities excluded from computation of earnings per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolver Revolving Credit Facility [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Long-term line of credit Long-term Line of Credit Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Severance and employee related costs Employee Severance [Member] Facilities and related costs Facility Closing [Member] Other costs Other Restructuring [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance, beginning Restructuring Reserve Costs charged to expense Restructuring Charges Cash payments Payments for Restructuring Non-cash charge adjustment Restructuring Reserve, Settled without Cash Balance, ending Leases [Abstract] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Remaining lease term Lessee, Operating Lease, Remaining Lease Term Remaining lease term for operating leases Renewal term Lessee, Operating Lease, Renewal Term Lease not yet commenced Lessee, Operating Lease, Lease Not yet Commenced, Liability Amount of future lease payments for leases that have not yet commenced. Lease not yet commenced, term Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Schedule of accumulated other comprehensive income (loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Statement of Comprehensive Income [Abstract] Net income Net Income (Loss) Attributable to Parent Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustment, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Unrealized gains (losses) on forward contracts designated as hedges, net of tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Unrealized gains (losses) on investments, net of tax Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Intangible Assets, Net (Excluding Goodwill) [Abstract] Definite-lived intangible assets, future amortization expense disclosure Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2019 (remaining three months) Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Net carrying amount, definite-lived intangible assets Finite-Lived Intangible Assets, Net Income Tax Disclosure [Abstract] Income Taxes [Table] Income Taxes [Table] Summarization of various income tax disclosures. Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Swedish Tax Agency Swedish Tax Agency [Member] Swedish Tax Agency French Tax Authority Ministry of the Economy, Finance and Industry, France [Member] Income Tax [Line Items] Income Tax [Line Items] Line items for various income tax disclosures. Income tax expense (benefit) Income Tax Expense (Benefit) Effective tax rate (in percent) Effective Income Tax Rate Reconciliation, Percent Statutory income tax rate (in percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Total assessment, including penalties and interest, not recorded Income Tax Examination, Total Assessment, Penalties And Interest Amount of tax assessment, including interest and penalties, from tax authority. 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Statement of Financial Position [Abstract] Accounts receivable allowances Accounts Receivable Allowance A provision for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible, an estimate for product returns, and an estimate for price protection. Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Treasury stock, shares (in shares) Treasury Stock, Shares Income Statement [Abstract] Statement [Table] Statement [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Product sales Product [Member] Product costs Product Sales - Product Costs [Member] Product costs which includes the manufacturing cost of goods produced and sold during the reporting period. This generally includes product costs, manufacturing royalties, net of volume discounts, personnel-related costs, warehousing and distribution costs. We generally recognize volume discounts when they are earned (typically in connection with the achievement of unit-based milestones). Software royalties, amortization, and intellectual property licenses Product Sales - Software Royalties, Amortization and Intellectual Property Licenses [Member] Software royalties, amortization, and intellectual property licenses which includes the amortization of capitalized software costs and royalties attributable to product sales revenues. These are costs capitalized on the balance sheet until the respective games are released, at which time the capitalized costs are amortized. Also included is amortization of intangible assets recognized in purchase accounting attributable to product sales revenues. Subscription, licensing, and other revenues Subscription, Licensing and Other [Member] Sale of subscriptions via packaged software and prepaid subscription cards, royalties from third-party licensee sales of our products, sales of add-on content, micro-transactions, and other ancillary revenues. Game operations and distribution costs Subscription, Licensing and Other - Game Operations and Distribution [Member] Game operations and distribution costs which includes costs to operate our games, such as customer service, internet bandwidth and server costs, platform provider fee, and payment provider fees. Software royalties, amortization, and intellectual property licenses Subscription, Licensing and Other - Software Royalties, Amortization, and Intellectual Property Licenses [Member] Software royalties, amortization, and intellectual property licenses costs which includes the amortization of capitalized software costs and royalties attributable to subscription, licensing and other revenues. These are costs capitalized on the balance sheet until the respective games are released, at which time the capitalized costs are amortized. Also included is amortization of intangible assets recognized in purchase accounting attributable to subscription, licensing and other revenues. Statement [Line Items] Statement [Line Items] Net revenues Revenues [Abstract] Net revenues Revenue from Contract with Customer, Excluding Assessed Tax Costs and expenses Costs and Expenses [Abstract] Cost of revenues—product sales and subscription, licensing, and other revenues: Cost of Revenue [Abstract] Cost of revenues Cost of Revenue Product development Research and Development Expense Sales and marketing Selling and Marketing Expense General and administrative General and Administrative Expense Restructuring and related costs Total costs and expenses Costs and Expenses Operating income Operating Income (Loss) Interest and other expense (income), net (Note 15) Other Nonoperating Income (Expense) Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Income before income tax expense (benefit) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Net income Earnings per common share Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted-average number of shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Software Development Costs and Intellectual Property Licenses Software development and intellectual property licenses: Software Development and Intellectual Property Licenses [Abstract] Internally-developed software costs Internally Developed Software Costs Capitalization of certain internally developed software costs incurred after technological feasibility of the software is established. Payments made to third-party software developers Software Costs Payments, Made to Third Party Developers Capitalized software costs resulting from payments made to third-party software developers. Total software development costs Software Development Costs Unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility through to the general release of the software products. Amortization: Amortization [Abstract] Amortization of capitalized software development costs and intellectual property licenses Capitalized Software Development Costs and Intellectual Property Licenses Amortization The amortization of capitalized software development costs and intellectual property licenses. New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Adjustments due to adoption of new lease accounting standard Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Condensed Consolidated Balance Sheet: Balance Sheet Related Disclosures [Abstract] Assets Assets [Abstract] Other current assets Other Assets, Current Other assets Other Assets, Noncurrent Liabilities Liabilities [Abstract] Accrued expenses and other liabilities Accrued Liabilities, Current Other liabilities Other Liabilities, Noncurrent Organization, Consolidation and Presentation of Financial Statements [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] Number of reportable segments Number of Reportable Segments Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Adjustments for Error Corrections [Axis] Adjustments for Error Corrections [Axis] Adjustments for Error Correction [Domain] Adjustments for Error Correction [Domain] Initial Recognition of Global Intangible Low-taxed Income of Foreign Subsidiaries Initial Recognition of Global Intangible Low-taxed Income of Foreign Subsidiaries [Member] Initial Recognition of Global Intangible Low-taxed Income of Foreign Subsidiaries [Member] Error Corrections and Prior Period Adjustments Restatement [Line Items] Error Corrections and Prior Period Adjustments Restatement [Line Items] Income tax expense reduction Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Revenue from Contract with Customer [Abstract] Deferred revenues Contract with Customer, Liability Revenue recognized included in beginning deferred revenue Contract with Customer, Liability, Revenue Recognized Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Description of Business and Basis of Consolidation and Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] 2019 (remaining three months) Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total future lease payments Lessee, Operating Lease, Liability, Payments, Due Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total lease liabilities Operating Lease, Liability Inventory Disclosure [Abstract] Schedule of inventories Schedule of Inventory, Current [Table Text Block] Maturities of Long-term Debt [Abstract] Maturities of Long-term Debt [Abstract] 2019 (remaining three months) Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Gross Carrying Amount Long-term Debt, Gross Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of revenues-product sales: Product costs Cost of Sales [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Activision Activision [Member] The Activision reportable segment of the entity. Blizzard Blizzard [Member] The Blizzard reportable segment of the entity. King King Digital Entertainment [Member] King Digital Entertainment [Member] Other segments Corporate and Other [Member] Inventory write-down Inventory Write-down Schedule of Impact of Adoption Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Foreign currency translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized gain (loss) on forward contracts Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Unrealized gain (loss) on forward contracts Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Unrealized gain (loss) on available-for-sale securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Cumulative impact from adoption of new revenue accounting standard Cumulative Effect of New Accounting Principle in Period of Adoption Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Amounts reclassified from accumulated other comprehensive income (loss) into earnings Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Ending balance Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative, Name [Domain] Derivative Contract [Domain] Buy USD, Sell EUR Buy USD, Sell EUR [Member] Buy USD, Sell EUR [Member] Buy EUR, Sell USD Buy EUR, Sell USD [Member] Buy EUR, Sell USD [Member] Buy USD, Sell SEK Buy USD, Sell SEK [Member] Buy USD, Sell SEK [Member] Buy SEK, Sell USD Buy SEK, Sell USD [Member] Buy SEK, Sell USD [Member] Buy USD, Sell GBP Buy USD, Sell GBP [Member] Buy USD, Sell GBP [Member] Buy GBP, Sell USD Buy GBP, Sell USD [Member] Buy GBP, Sell USD [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging Cash Flow Hedging [Member] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Notional amount Derivative, Notional Amount1 Nominal or face amount used to calculate payment on derivative. Fair value gain (loss) Derivative, Fair Value, Net Contract maturity (or less) Derivative, Remaining Maturity Net realized gains Deferred Cash Flow Hedge Gain Loss to be Reclassified within Twelve Months The estimated net amount of existing gains or losses on cash flow hedges that settled and were deferred at the reporting date that are expected to be reclassified to earnings, along with the associated hedged revenues, within the next Twelve months. Deferred cash flow hedge gain (loss) in AOCI Deferred Cash Flow Hedge Gain (Loss) in AOCI The net amount of existing gains or losses on cash flow hedges that settled and were deferred at the reporting date into accumulated other comprehensive income (AOCI). Debt Debt Disclosure [Text Block] Schedule of Beginning and Ending Cash and Cash Equivalents and Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Unsecured Debt Unsecured Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2021 Notes Unsecured 2021 Notes [Member] 2.3% Unsecured Notes. 2022 Notes Unsecured 2022 Notes [Member] 2.6% Unsecured Notes. 2026 Notes Unsecured 2026 Notes [Member] 3.4% Unsecured Notes. 2027 Notes Unsecured 2027 Notes [Member] 3.4% Unsecured Notes. 2047 Notes Unsecured 2047 Notes [Member] 4.5% Unsecured Notes. Debt Instrument [Line Items] Debt Instrument [Line Items] Gross Carrying Amount Unamortized Discount and Deferred Financing Costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Net Carrying Amount Long-term Debt Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowances of $81 and $190, at September 30, 2019 and December 31, 2018, respectively Accounts Receivable, Net, Current Inventories, net Inventory, Net Software development Software Development, Current The current portion of unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility, through to the general release of the software products. Total current assets Assets, Current Software development Software Development, Noncurrent The noncurrent portion of unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility, through to the general release of the software products. Property and equipment, net Property, Plant and Equipment, Net Deferred income taxes, net Deferred Income Tax Assets, Net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Total assets Assets Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Deferred revenues Contract with Customer, Liability, Current Total current liabilities Liabilities, Current Long-term debt, net Long-term Debt, Excluding Current Maturities Deferred income taxes, net Deferred Income Tax Liabilities, Net Total liabilities Liabilities Commitments and contingencies (Note 19) Commitments and Contingencies Shareholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.000001 par value, 2,400,000,000 shares authorized, 1,196,802,874 and 1,192,093,991 shares issued at September 30, 2019 and December 31, 2018, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Less: Treasury stock, at cost, 428,676,471 shares at September 30, 2019 and December 31, 2018 Treasury Stock, Value Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total shareholders’ equity Total liabilities and shareholders’ equity Liabilities and Equity Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Schedule of operating segments and reconciliations of total net revenues and total segment operating income to consolidated net revenues from external customers and consolidated income before income tax expense Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of net revenues by distribution channels Schedule of Net Revenues by Distribution Channels [Table Text Block] Schedule of Net Revenues by Distribution Channels [Table Text Block] Schedule of net revenues by geographic region Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of net revenues by platform Schedule of Net Revenues from External Customers by Platform [Table Text Block] The disclosure of net revenues from external customers by platform. Long-lived assets by geographic region Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Operating Segments and Geographic Region Segment Reporting Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Reportable segments Operating Segments [Member] Non-reportable segments Corporate, Non-Segment [Member] Elimination of intersegment revenues Intersegment Eliminations [Member] Reconciling items Segment Reconciling Items [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Americas Americas [Member] US UNITED STATES EMEA EMEA [Member] UK UNITED KINGDOM Asia Pacific Asia Pacific [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenues Sales Revenue, Net [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk Geographic Concentration Risk [Member] Net revenues from external customers Revenue, External Customers [Member] Revenue, External Customers [Member] Intersegment net revenues Revenue, Intersegment [Member] Revenue, Intersegment [Member] Digital online channels Digital Online Channels [Member] Digital Online Channels [Member] Retail channels Retail Channels [Member] Retail Channels [Member] Other Other Distribution Channels [Member] Other Distribution Channels [Member] Console Console [Member] Represents the total of consoles which includes the Sony PS4 and PS3, the Microsoft Xbox One and Xbox 360, and the Nintendo Wii U and Wii. PC PC [Member] The personal computer platform. Mobile and ancillary Mobile And Ancillary Platforms [Member] Mobile And Ancillary Platforms [Member] Other Other [Member] Revenues from handheld and mobile devices, as well as non-platform specific game related revenues such as standalone sales of toys and accessories products from the Skylanders franchise and other physical merchandise and accessories. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Segment revenues Segment Revenues Segment revenues represent revenues presented consistent with how our CODM reviews segment performance, which are exclusive of the impact of the change in deferred revenues and related cost of revenues with respect to certain of our online-enabled games. Operating income Net effect from recognition (deferral) of deferred net revenues Deferral of Net Revenues and Related Cost of Sales Revenue Impact Impact of the net effect from the deferral of net revenues in reconciling total segment net revenues to consolidated net revenues. Net effect from recognition (deferral) of deferred net revenues and related cost of revenues Deferral of Net Revenues and Related Cost of Sales Operating Income Impact Impact of the net effect from the deferral of net revenues and related cost of revenues in reconciling total segment operating income (loss) to consolidated operating income (loss). Share-based compensation expense Allocated Share-based Compensation Expense Amortization of intangible assets Amortization of Intangible Assets Restructuring costs Revenues as a percentage of consolidated net revenues Concentration Risk, Percentage Long-lived assets Other Income and Expenses [Abstract] Interest and Other Expense (Income), Net Other Income and Other Expense Disclosure [Text Block] Total Unsecured Senior Notes Notes [Member] Total Outstanding Unsecured Senior Notes. Amount outstanding Interest rate Debt Instrument, Interest Rate, Stated Percentage Interest payable Interest Payable Interest expense Interest Expense, Debt, Excluding Amortization Amortization of financing costs and discounts Amortization of Debt Issuance Costs and Discounts Fair value of notes Long-term Debt, Fair Value Inventories, Net Inventory Disclosure [Text Block] Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class [Table] Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class [Table] Disclosure of the details of intangible assets subject to amortization and not subject to amortization, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company. Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Internally-developed franchises Internally Developed Franchises [Member] The cost of development of franchises by the entity. Developed software DevelopedSoftware [Member] Developed Software acquired. Customer base Customer-Related Intangible Assets [Member] Trade names Trade Names [Member] Other Other Intangible Assets [Member] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Activision trademark Trademarks [Member] Acquired trade names Definite-lived And Indefinite-lived Intangible Assets [Line Items] Definite-lived And Indefinite-lived Intangible Assets [Line Items] Line items related to definite-lived and indefinite-lived intangible assets. Finite-Lived Intangible Assets Finite-Lived Intangible Assets, Net [Abstract] Estimated useful life Finite-Lived Intangible Asset, Useful Life Gross carrying amount, definite-lived intangible assets Finite-Lived Intangible Assets, Gross Accumulated amortization, definite-lived intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Indefinite Lived Intangible Assets Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract] Net carrying amount, indefinite-lived intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Total intangible assets, net Amortization Expense Disclosure Amortization of Deferred Charges [Abstract] Amortization expense Summary of debt Schedule of Debt [Table Text Block] Schedule of maturities of debt Schedule of Maturities of Long-term Debt [Table Text Block] Restricted cash Restricted Cash Goodwill Goodwill Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] December 31, 2018 Other Goodwill, Other Increase (Decrease) September 30, 2019 Income Taxes Income Tax Disclosure [Text Block] Nonrecurring Fair Value, Measurements, Nonrecurring [Member] Fair Value Measurements on a Non-Recurring Basis [Line Items] Upward adjustment to equity investment Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount Carrying value of the investment Equity Securities without Readily Determinable Fair Value, Amount Asset impairment charges Asset Impairment Charges Total expected pre-tax restructuring charges Restructuring and Related Cost, Expected Cost Other assets Other Assets [Member] Accrued expenses and other current liabilities Accrued Liabilities [Member] Other liabilities Other Noncurrent Liabilities [Member] ROU assets Operating Lease, Right-of-Use Asset Current lease liabilities Operating Lease, Liability, Current Non-current lease liabilities Operating Lease, Liability, Noncurrent Total lease liabilities Deferred revenues Revenue from Contract with Customer [Text Block] Software Development and Intellectual Property Licenses Software Development Costs and Intellectual Property Licenses [Text block] Includes disclosure of software development costs and intellectual property license costs. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables. Restructuring Restructuring and Related Activities Disclosure [Text Block] Interest income Interest Income, Other Interest expense from debt and amortization of debt discount and deferred financing costs Interest Expense, Debt Unrealized gain on equity investment Equity Securities, FV-NI, Unrealized Gain (Loss) Other expense (income), net Nonoperating Gains (Losses) Interest and other expense (income), net Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Consolidated net income Denominator: Earnings Per Share, Diluted, Other Disclosures [Abstract] Denominator for basic earnings per common share - weighted-average common shares outstanding (in shares) Employee stock options and awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Denominator for diluted earnings per common share - weighted-average common shares outstanding plus dilutive common shares under treasury stock method (in shares) Basic earnings per common share (in dollars per share) Diluted earnings per common share (in dollars per share) Summary of the components of capitalized software development Schedule of Software Development Costs and Intellectual Property Licenses [Table Text Block] Tabular disclosure of software development costs and intellectual property licenses as of the balance sheet date. Amortization of capitalized software development costs and intellectual property licenses Amortization of Software Development Costs and Intellectual Property Licenses [Table Text Block] Tabular disclosure of amortization of software development costs and intellectual property licenses. Equity [Abstract] Share Repurchase Program [Table] Share Repurchase Program [Table] Summarization of share repurchase programs. Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Share Repurchase Program 2019 Share Repurchase Program 2019 [Member] Share Repurchase Program 2019 [Member] Share Repurchase Program [Line Items] Share Repurchase Program [Line Items] Line items related to the share repurchase program authorized by the Board of Directors. Share repurchase program, dollar amount authorized Stock Repurchase Program, Authorized Amount Shares of common stock repurchased Treasury Stock, Shares, Acquired Cost of common stock repurchased under the stock repurchase program Treasury Stock, Value, Acquired, Cost Method Schedule of Lease Expense and Other Details Related to Operating Leases Lease, Cost [Table Text Block] Schedule of Future Undiscounted Lease Payments For Operating Lease Liabilities And Reconciliation to Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of ROU Assets and Lease Liabilities Assets and Liabilities, Lessee [Table Text Block] Assets and Liabilities, Lessee [Table Text Block] Schedule of Future Minimum Lease Payments Prior to Adoption of Lease Standard Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Contracted not recognized revenue Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Contracted not recognized revenue, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Restricted stock units and options with underlying performance measures that had not yet been met (in shares) Contingently Issuable Shares Performance Criteria Contingently issuable shares that were not included in diluted earnings per share (EPS) as the contingencies were not resolved. These shares may be issued in the future upon the satisfaction of specified performance measures. Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Options Equity Option [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive options to purchase shares of common stock (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Leases Lessee, Operating Leases [Text Block] Asset Write-Downs and Other Costs Asset Write-Downs and Other Costs [Member] Asset Write-Downs and Other Costs [Member] Percentage of aggregate charge Restructuring and Related Cost, Expected Cost, Percentage Estimated percentage of expected total restructuring and related cost Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Deferred income taxes Deferred Income Tax Expense (Benefit) Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Non-cash operating lease cost Non-cash operating lease cost Non-cash operating lease costs Amortization of capitalized software development costs and intellectual property licenses Amortization of capitalized software development costs and intellectual property licenses Amortization of capitalized software development costs and intellectual property licenses. This excludes deferral and amortization of share-based compensation expense. Share-based compensation expense Share-based Compensation Unrealized gain on equity investment (Note 8) Other Other Operating Activities, Cash Flow Statement Changes in operating assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Software development and intellectual property licenses Increase (Decrease) in Software Development and Intellectual Property Licenses The increase (decrease) in software development and intellectual property licenses. Other assets Increase (Decrease) in Other Operating Assets Deferred revenues Increase (Decrease) in Contract with Customer, Liability Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Proceeds from maturities of available-for-sale investments Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Purchases of available-for-sale investments Payments to Acquire Debt Securities, Available-for-sale Capital expenditures Payments to Acquire Property, Plant, and Equipment Other investing activities Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Proceeds from issuance of common stock to employees Proceeds from Stock Plans Tax payment related to net share settlements on restricted stock units Payments Related to Tax Withholding for Share-based Compensation Dividends paid Payments of Ordinary Dividends, Common Stock Repayment of long-term debt Repayments of Long-term Debt Premium payment for early redemption of note Payment for Debt Extinguishment or Debt Prepayment Cost Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of foreign exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net increase (decrease) in cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents and restricted cash at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents and restricted cash at end of period Cover page. Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Dividends Dividends [Abstract] Dividends per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Cash dividend payment Operating leases Income and Expenses, Lessee [Abstract] Operating lease costs Operating Lease, Expense Variable lease costs Variable Lease, Cost Supplemental Operating Cash Flows Information Cash Flow, Operating Activities, Lessee [Abstract] Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments ROU assets obtained in exchange for new lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Weighted Average Lease terms and discount rates Operating Leases, Weighted Average Remaining Lease Term and Discount Rate [Abstract] Operating Leases, Weighted Average Remaining Lease Term and Discount Rate [Abstract] Remaining lease term Operating Lease, Weighted Average Remaining Lease Term Discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest and other investment income (expense) Schedule of Other Nonoperating Income (Expense) [Table Text Block] Statement of Stockholders' Equity [Abstract] Computation of Basic/Diluted Earnings Per Common Share Earnings Per Share [Text Block] Schedule of finite-lived intangible assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of indefinite-lived intangible assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Schedule of finite lived intangible assets, future amortization expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Capital Transactions Treasury Stock [Text Block] Fair value, assets measured on a recurring and/or non-recurring basis Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Foreign currency forward contracts Schedule of Derivative Instruments [Table Text Block] Net realized gains (losses) reclassified out of accumulated other comprehensive income (loss) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Intangible Assets, Net Intangible Assets Disclosure [Text Block] Schedule of Accrued Restructuring Included in Accrued Expenses and Other Liabilities and Charges by Reportable Segment Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Schedule of Restructuring and Related Costs by Segment and Expected Pre-tax Restructuring Charges Restructuring and Related Costs [Table Text Block] Common Stock Common Stock [Member] Treasury Stock Treasury Stock [Member] Additional Paid-In Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance (in shares) Shares, Issued Components of comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Cumulative impact from adoption of new revenue accounting standard (Note 3) Other comprehensive income (loss) Issuance of common stock pursuant to employee stock options Stock Issued During Period, Value, Share-based Compensation, Gross Issuance of common stock pursuant to employee stock options (in shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Issuance of common stock pursuant to restricted stock units Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of common stock pursuant to restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Restricted stock surrendered for employees’ tax liability Adjustments Related to Tax Withholding for Share-based Compensation Restricted stock surrendered for employees' tax liability (in shares) Shares Paid for Tax Withholding for Share Based Compensation Share-based compensation expense related to employee stock options and restricted stock units Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Dividends ($0.37 and $0.34 per common share) Dividends, Common Stock, Cash Balance (in shares) Finished goods Inventory, Finished Goods, Net of Reserves Purchased parts and components Inventory, Raw Materials, Net of Reserves Inventories, net Inventory reserves Inventory Valuation Reserves Basis of Consolidation and Presentation Consolidation, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Leases Lessee, Leases [Policy Text Block]