| **Financing Arrangement (Schedule Of Interest Expense Related To Notes) (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended                                       | 9 Months Ended                                       |
|------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------|------------------------------------------------------|
||
| **Debt Instruments [Abstract]**                                                                                                    |                                                 |                                                 |   |   |
| Amortization of debt discount                                                                                                      | $ (5)us-gaap_AmortizationOfDebtDiscountPremium       | $ (6)us-gaap_AmortizationOfDebtDiscountPremium       | $ (16)us-gaap_AmortizationOfDebtDiscountPremium | $ (16)us-gaap_AmortizationOfDebtDiscountPremium |
| Amortization of debt issuance costs                                                                                                | 0us-gaap_AmortizationOfFinancingCosts                | (1)us-gaap_AmortizationOfFinancingCosts              | (2)us-gaap_AmortizationOfFinancingCosts | (3)us-gaap_AmortizationOfFinancingCosts |
| Coupon interest expense                                                                                                            | (2)ea_DebtInstrumentConvertibleCouponInterestExpense | (1)ea_DebtInstrumentConvertibleCouponInterestExpense | (4)ea_DebtInstrumentConvertibleCouponInterestExpense | (3)ea_DebtInstrumentConvertibleCouponInterestExpense |
| Interest Expense, Other                                                                                                            | (1)us-gaap_InterestExpenseOther                      | 0us-gaap_InterestExpenseOther                        | (2)us-gaap_InterestExpenseOther | (1)us-gaap_InterestExpenseOther |
| Total interest expense                                                                                                             | $ (8)us-gaap_InterestExpense                         | $ (8)us-gaap_InterestExpense                         | $ (24)us-gaap_InterestExpense | $ (23)us-gaap_InterestExpense |

| X                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Debt Instrument Convertible Coupon Interest Expense
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.
+ References
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| X                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of the cost of borrowed funds accounted for as interest expense.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet.
+ References
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