| **Description Of Business And Basis Of Presentation (Policies)**   | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| **Accounting Policies [Abstract]**                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| New Accounting Pronouncements and Changes in Accounting Principles | Change in Estimated Offering PeriodPrior to July 1, 2013, for most sales, we estimated the offering period to be six months and recognized revenue over this period in the month after delivery. During the three months ended September 30, 2013, we completed our fiscal 2014 annual evaluation of the estimated offering period and noted that generally, consumers were playing our games online over a longer period of time. Based on this, we concluded that for physical software sales made after June 30, 2013, the estimated offering period should be increased to nine months, resulting in revenue being recognized over a longer period of time. This change in estimate resulted in an estimated decrease to net revenue and net income of $474 million and a decrease of $1.50 of diluted earnings per share for fiscal year 2014. During the three months ended December 31, 2014, this change in estimate resulted in an estimated increase to net revenue and net income of $180 million and an increase of $0.56 of diluted earnings per share. During the nine months ended December 31, 2014, this change in estimate resulted in an estimated increase to net revenue and net income of $466 million and an increase of $1.45 of diluted earnings per share. The estimated offering period for digitally distributed software games did not change and is six months. We completed our fiscal 2015 annual evaluation during the second quarter and determined that the estimated offering period for physical software sales and digital sales continues to be nine months and six months, respectively.  Recently Adopted Accounting StandardsOn April 1, 2014, we adopted ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. Under the new accounting standard, an unrecognized tax benefit is required to be presented as a reduction to a deferred tax asset if the disallowance of the uncertain tax position would reduce an available tax loss or tax credit carryforward instead of resulting in a cash tax liability. The ASU applies prospectively to all unrecognized tax benefits that exist as of the adoption date. As a result of the adoption, we reduced: (a) noncurrent income tax obligations by $96 million; (b) current deferred income tax assets by $18 million; and (c) noncurrent deferred income tax assets by $11 million. We increased noncurrent deferred income tax liabilities by $67 million. As the new accounting standard only impacted presentation, it did not have an impact on the Company’s net financial position, results of operations, or cash flows. |
| Impact of recently issued accounting standards                     | Impact of Recently Issued Accounting StandardsIn May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for annual reporting periods beginning after December 15, 2016. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its Condensed Consolidated Financial Statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting. We expect to adopt this new standard in the first quarter of fiscal year 2018.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |

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| - Definition
The entire disclosure for a new accounting pronouncement that has been issued but not yet adopted.
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| - Definition
The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.
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