Description of Business and Basis of Consolidation and Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Consolidation and Presentation	Description of Business and Basis of Consolidation and Presentation Activision Blizzard, Inc. is a leading global developer and publisher of interactive entertainment content and services. We develop and distribute content and services on video game consoles, personal computers (“PC”s), and mobile devices. We also operate esports leagues and offer digital advertising within our content. The terms “Activision Blizzard,” the “Company,” “we,” “us,” and “our” are used to refer collectively to Activision Blizzard, Inc. and its subsidiaries. The Company was originally incorporated in California in 1979 and was reincorporated in Delaware in December 1992. In connection with the 2008 business combination by and among the Company (then known as Activision, Inc.), Vivendi S.A, and Vivendi Games, Inc., pursuant to which we acquired Blizzard Entertainment, Inc. (“Blizzard”), we were renamed Activision Blizzard, Inc. On February 23, 2016, we acquired King Digital Entertainment plc ("King") by purchasing all of its outstanding shares. Our Segments Based upon our organizational structure, we conduct our business through three reportable segments, as follows: (i) Activision Publishing, Inc. Activision Publishing, Inc. (“Activision”) is a leading global developer and publisher of interactive software products and entertainment content, particularly for the console platform. Activision primarily delivers content through retail and digital channels, including full-game and in-game sales, as well as by licensing software to third-party or related-party companies that distribute Activision products. Activision develops, markets, and sells products primarily based on our internally developed intellectual properties. Activision also includes the activities of the Call of Duty LeagueTM, a global professional esports league with city-based teams. Activision’s key product franchise is Call of Duty®, a first-person action title for the console, PC, and mobile platforms. (ii) Blizzard Entertainment, Inc. Blizzard is a leading global developer and publisher of interactive software products and entertainment content, particularly for the PC platform. Blizzard primarily delivers content through retail and digital channels, including subscription, full-game, and in-game sales, as well as by licensing software to third-party or related-party companies that distribute Blizzard products. Blizzard also maintains a proprietary online gaming service, Blizzard Battle.net®, which facilitates digital distribution of Blizzard content and selected Activision content, online social connectivity, and the creation of user-generated content. Blizzard also includes the activities of the Overwatch LeagueTM, a global professional esports league with city-based teams. Blizzard’s key product franchises include: World of Warcraft®, a subscription-based massive multi-player online role-playing game for the PC platform; Diablo®, an action role-playing franchise for the PC and console platforms; Hearthstone®, an online collectible card franchise for the PC and mobile platforms; and Overwatch®, a team-based first-person action title for the PC and console platforms. (iii) King Digital Entertainment King is a leading global developer and publisher of interactive entertainment content and services, primarily for the mobile platform. King also distributes its content and services on the PC platform, primarily via Facebook. King’s games are free to play; however, players can acquire in-game items, either with virtual currency or real currency, and we continue to focus on in-game advertising as a growing source of additional revenue. King’s key product franchise is Candy Crush™, which features “match three” games for the mobile and PC platforms. Other We also engage in other businesses that do not represent reportable segments, including the Activision Blizzard Distribution (“Distribution”) business, which consists of operations in Europe that provide warehousing, logistics, and sales distribution services to third-party publishers of interactive entertainment software, our own publishing operations, and manufacturers of interactive entertainment hardware. Basis of Consolidation and Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission and accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim reporting. Accordingly, certain notes or other information that are normally required by U.S. GAAP have been condensed or omitted if they substantially duplicate the disclosures contained in our annual audited consolidated financial statements. Additionally, the year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. Accordingly, the unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019. The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Generally, making these estimates and developing our assumptions requires consideration of forecasted information, which, in context of the COVID-19 pandemic, involves additional uncertainty. While there was no material impact to our estimates in the current period, in future periods, facts and circumstances (including, without limitation, the impact of the ongoing global COVID-19 pandemic) could change and impact our estimates. Additionally, actual results could differ from these estimates and assumptions. In the opinion of management, all adjustments considered necessary for the fair statement of our financial position and results of operations in accordance with U.S. GAAP (consisting of normal recurring adjustments) have been included in the accompanying unaudited condensed consolidated financial statements. The accompanying condensed consolidated financial statements include the accounts and operations of the Company. All intercompany accounts and transactions have been eliminated. Certain reclassifications have been made to prior-year amounts to conform to the current period presentation.