| **Segment Information (Tables)**                                          | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
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| **Segment Reporting [Abstract]**                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| Reconciliation Of Segment Operating Profit To Consolidated Operating Loss | The following table summarizes the financial performance of our current segment operating profit and a reconciliation to our consolidated operating income for the fiscal years ended March 31, 2016, 2015 and 2014 (in millions): Year Ended March 31, 2016 2015 2014Segment:     Net revenue before revenue deferral$4,566 $4,319 $4,021Depreciation(119) (126) (126)Other expenses(3,147) (3,117) (3,178)Segment operating profit1,300 1,076 717Reconciliation to consolidated operating income:     Other:     Revenue deferral(3,783) (3,536) (3,350)Recognition of revenue deferral3,613 3,732 2,904Amortization of intangibles(54) (66) (76)Acquisition-related contingent consideration— 3 35Restructuring and other charges— — 1Stock-based compensation(178) (144) (150)Loss on licensed intellectual property commitment (122) —Other expenses— 5 (48)Consolidated operating income$898 $948 $33 |
| Net Revenue By Revenue Composition                                        | Information about our total net revenue by revenue composition and by platform for the fiscal years ended March 31, 2016, 2015 and 2014 is presented below (in millions):  Year Ended March 31, 2016 2015 2014Packaged goods and other$1,987 $2,316 $1,742Digital2,409 2,199 1,833Net revenue$4,396 $4,515 $3,575                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Schedule of Net Revenue by Platform [Table Text Block]                    |  Year Ended March 31, 2016 2015 2014Platform net revenue     Xbox One, PlayStation 4$2,183 $1,505 $196Xbox 360, PlayStation 3752 1,485 1,779Other consoles7 21 30Total consoles2,942 3,011 2,005PC / Browser814 878 1,020Mobile548 504 400Other92 122 150Net revenue$4,396 $4,515 $3,575                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Net Revenue By Geographic Area                                            | Information about our operations in North America and internationally as of and for the fiscal years ended March 31, 2016, 2015 and 2014 is presented below (in millions):  Year Ended March 31, 2016 2015 2014Net revenue from unaffiliated customers     North America$1,907 $1,956 $1,510International2,489 2,559 2,065Total$4,396 $4,515 $3,575                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Long-Lived Assets By Geographic Area                                      |  As of March 31, 2016 2015Long-lived assets   North America$1,727 $1,809International479 474Total$2,206 $2,283                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |

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Tabular disclosure of  all significant reconciling items in the reconciliation of total profit or loss from reportable segments, to the entity's consolidated income before income taxes, extraordinary items, and discontinued operations.
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Tabular disclosure of the names of foreign countries in which material long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets are located, and amount of such long-lived assets located in that country or foreign geographic area.
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Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.
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