| **Financial Instruments (Fair Value Of Short-Term Investments) (Details) - USD ($) $ in Millions** | 3 Months Ended | 12 Months Ended |
|----------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Financial Instruments**                                                                          |           |            |  |
| Fair Value                                                                                         | $ 1,095        | $ 1,073         | [1] |
| Short-term investments                                                                             |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 1,103          | 1,082           |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | (8)            | (9)             |  |
| Fair Value                                                                                         | 1,095          | 1,073           |  |
| Short-term investments | Corporate bonds                                                           |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 618            | 629             |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 5              | 5               |  |
| Fair Value                                                                                         | 613            | 624             |  |
| Short-term investments | U.S. Treasury securities                                                  |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 215            | 212             |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 2              | 2               |  |
| Fair Value                                                                                         | 213            | 210             |  |
| Short-term investments | U.S. agency securities                                                    |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 75             | 79              |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 1              | 1               |  |
| Fair Value                                                                                         | 74             | 78              |  |
| Short-term investments | Commercial paper                                                          |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 89             | 109             |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 0              | 0               |  |
| Fair Value                                                                                         | 89             | 109             |  |
| Short-term investments | Debt Security, Government, Non-US [Member]                                |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 54             | 53              |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 0              | 1               |  |
| Fair Value                                                                                         | 54             | 52              |  |
| Short-term investments | Asset-backed Securities [Member]                                          |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 50             | 0               |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 0              | 0               |  |
| Fair Value                                                                                         | 50             | 0               |  |
| Short-term investments | Certificates of Deposit [Member]                                          |           |            |  |
| **Financial Instruments**                                                                          |           |            |  |
| Cost or Amortized Cost                                                                             | 2              | 0               |  |
| Gross Unrealized Gains                                                                             | 0              | 0               |  |
| Gross Unrealized Losses                                                                            | 0              | 0               |  |
| Fair Value                                                                                         | $ 2            | $ 0             |  |
|                                                                                                    |
| [1]Derived from audited Consolidated Financial Statements.                                         |

| X                                                                                                                                                                                                                                             |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Financial Instruments [Line Items]
+ References
No definition available.
+ Details**Name:**ea_FinancialInstrumentsLineItems**Namespace Prefix:**ea_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.
+ References
No definition available.
+ Details**Name:**us-gaap_AvailableForSaleSecuritiesAmortizedCost**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.
+ References
No definition available.
+ Details**Name:**us-gaap_AvailableForSaleSecuritiesCurrent**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.
+ References
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563
+ Details**Name:**us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.
+ References
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563
+ Details**Name:**us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_InvestmentTypeAxis=us-gaap_ShortTermInvestmentsMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_CommercialPaperMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FinancialInstrumentAxis=us-gaap_CertificatesOfDepositMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |