| **Business Combinations (Narrative) (Details) (USD $)In Millions, unless otherwise specified**   | 12 Months Ended |        | 1 Months Ended    | 12 Months Ended | 1 Months Ended |
|--------------------------------------------------------------------------------------------------|-----------------|--------|-------------------|-----------------|----------------|
||
| **Business Acquisition [Line Items]**                                                            |            |   |              |            |           |   |
| Date of purchase agreement                                                                       |            |   | Aug. 31,				 2011 |            |           |   |
| Aggregate purchase price in cash                                                                 |            |   | $ 645             | $ 55            |           |   |
| Acquisition-related contingent consideration payment                                             |            |   | 87                |            |           |   |
| Maximum period in years to grant long-term equity retention awards                               |            |   |              |            | 4 years        |   |
| Maximum value of restricted stock unit awards and options to be granted                          |            |   | 50                |            |           |   |
| Contingent consideration maximum payment                                                         | 566             | 10     | 550               |            |           |   |
| Contingent consideration, fair value                                                             |            |   | 95                |            |           |   |
| Aggregated fair value of in process research and development projects acquired                   |            |   | 15                |            |           |   |
| Average weighted average cost of capital                                                         |            |   |              |            |           | 13.00% |
| Assigned fair value of acquired IPR&D projects                                               |            |   |              |            |           | 4 |
| Estimated costs to complete acquired IPR&D projects                                          |            |   |              |            |           | 2 |
| Aggregate cost to complete acquired IPR&D projects                                           |            |   |              |            |           | $ 5 |
| Weighted-average estimated percentage completion of in-process research and development projects |            |   |              |            |           | 36.00% |
| Number of businesses acquired                                                                    | 1               |   |              | 4               |           |   |

| X                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregated fair value of in process research and development projects acquired
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate Estimated Costs To Complete Of In Process Research And Development Projects Acquired.
+ References
No definition available.
+ Details**Name:**ea_AggregateEstimatedCostsToCompleteOfInProcessResearchAndDevelopmentProjectsAcquired**Namespace Prefix:**ea_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Average Weighted Average Cost Of Capital.
+ References
No definition available.
+ Details**Name:**ea_AverageWeightedAverageCostOfCapital**Namespace Prefix:**ea_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum Assigned Fair Value Of Each In Process Research And Development Project Acquired.
+ References
No definition available.
+ Details**Name:**ea_MaximumAssignedFairValueOfEachInProcessResearchAndDevelopmentProjectAcquired**Namespace Prefix:**ea_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum Estimated Costs To Complete Of Each In Process Research And Development Project Acquired.
+ References
No definition available.
+ Details**Name:**ea_MaximumEstimatedCostsToCompleteOfEachInProcessResearchAndDevelopmentProjectAcquired**Namespace Prefix:**ea_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum value of restricted stock unit awards and options to be granted.
+ References
No definition available.
+ Details**Name:**ea_MaximumValueOfRestrictedStockUnitAwardsAndOptionsToBeGranted**Namespace Prefix:**ea_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Period of grant of long term equity retention awards.
+ References
No definition available.
+ Details**Name:**ea_PeriodOfGrantOfLongTermEquityRetentionAwards**Namespace Prefix:**ea_**Data Type:**us-types:durationStringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Weighted-average estimated percentage completion of in-process research and development projects
+ References
No definition available.
+ Details**Name:**ea_WeightedAverageEstimatedPercentageCompletionOfInProcessResearchAndDevelopmentProjects**Namespace Prefix:**ea_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.
+ References
No definition available.
+ Details**Name:**us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Date when the business acquisition agreement was executed, in CCYY-MM-DD format.
+ References
No definition available.
+ Details**Name:**us-gaap_BusinessAcquisitionDateOfAcquisitionAgreement1**Namespace Prefix:**us-gaap_**Data Type:**xbrli:dateItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479
+ Details**Name:**us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_BusinessAcquisitionLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479
+ Details**Name:**us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of liability recognized arising from contingent consideration in a business combination.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476
+ Details**Name:**us-gaap_BusinessCombinationContingentConsiderationLiability**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The number of businesses acquired by the entity during the period.
+ References
No definition available.
+ Details**Name:**us-gaap_NumberOfBusinessesAcquired**Namespace Prefix:**us-gaap_**Data Type:**xbrli:integerItemType**Balance Type:**na**Period Type:**duration |