Description of Business and Business Combination	6 Months Ended
Jun. 30, 2011
Description Of Business And Business Combination Disclosure [Abstract]
Description of Business and Business Combination	1. Description of Business and Basis of Consolidation and Presentation Description of Business Activision Blizzard, Inc. is a worldwide online, personal computer (“PC”), console, handheld and mobile game publisher. The terms “Activision Blizzard,” the “Company,” “we,” “us,” and “our” are used to refer collectively to Activision Blizzard, Inc. and its subsidiaries. The common stock of Activision Blizzard is traded on The NASDAQ Stock Market under the ticker symbol “ATVI.” Vivendi S.A. (“Vivendi”) owned approximately 63% of Activision Blizzard's outstanding common stock at June 30, 2011. We maintain significant operations in the United States, Canada, the United Kingdom, France, Germany, Ireland, Italy, Sweden, Spain, the Netherlands, Australia, South Korea and China. Basis of Consolidation and Presentation Activision Blizzard prepared the accompanying unaudited condensed consolidated financial statements in accordance with the rules and regulations of the Securities and Exchange Commission for interim reporting. As permitted under those rules and regulations, certain notes or other information that are normally required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted if they substantially duplicate the disclosures contained in the annual audited consolidated financial statements. The year-end condensed balance sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. 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, 2010. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for fair statement of our financial position and results of operations in accordance with U.S. GAAP have been included in the accompanying unaudited condensed consolidated financial statements. The accompanying unaudited condensed consolidated financial statements include the accounts and operations of Activision Blizzard. All intercompany accounts and transactions have been eliminated. The condensed consolidated financial statements have been prepared in conformity with U.S. GAAP. 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. Actual results could differ from these estimates and assumptions. Certain reclassifications have been made to prior period amounts to conform to the current period presentation. The Company considers events or transactions that occur after the balance sheet date, but before the financial statements are issued, to provide additional evidence relative to certain estimates or to identify matters that require additional disclosures.

Description of Business and Business Combination

6 Months Ended

Jun. 30, 2011

Description Of Business And Business Combination Disclosure [Abstract]

Description of Business and Business Combination

1. Description of Business and Basis of Consolidation and Presentation

Description of Business

Activision Blizzard, Inc. is a worldwide online, personal computer (“PC”), console, handheld and mobile game publisher. The terms “Activision Blizzard,” the “Company,” “we,” “us,” and “our” are used to refer collectively to Activision Blizzard, Inc. and its subsidiaries.

The common stock of Activision Blizzard is traded on The NASDAQ Stock Market under the ticker symbol “ATVI.” Vivendi S.A. (“Vivendi”) owned approximately 63% of Activision Blizzard's outstanding common stock at June 30, 2011.

We maintain significant operations in the United States, Canada, the United Kingdom, France, Germany, Ireland, Italy, Sweden, Spain, the Netherlands, Australia, South Korea and China.

Basis of Consolidation and Presentation

Activision Blizzard prepared the accompanying unaudited condensed consolidated financial statements in accordance with the rules and regulations of the Securities and Exchange Commission for interim reporting. As permitted under those rules and regulations, certain notes or other information that are normally required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted if they substantially duplicate the disclosures contained in the annual audited consolidated financial statements. The year-end condensed balance sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. 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, 2010. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for fair statement of our financial position and results of operations in accordance with U.S. GAAP have been included in the accompanying unaudited condensed consolidated financial statements.

The accompanying unaudited condensed consolidated financial statements include the accounts and operations of Activision Blizzard. All intercompany accounts and transactions have been eliminated. The condensed consolidated financial statements have been prepared in conformity with U.S. GAAP. 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. Actual results could differ from these estimates and assumptions.

Certain reclassifications have been made to prior period amounts to conform to the current period presentation.

The Company considers events or transactions that occur after the balance sheet date, but before the financial statements are issued, to provide additional evidence relative to certain estimates or to identify matters that require additional disclosures.

- Definition

Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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