| **Goodwill And Acquisition-Related Intangibles, Net (Narrative) (Details) - USD ($) $ in Millions**             | 9 Months Ended   | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------------|------------------|-----------------|
||
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | $ 78             |            |
| Minimum                                                                                                         |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Finite-Lived Intangible Asset, Useful Life                                                                      | 1 year           |            |
| Maximum                                                                                                         |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Finite-Lived Intangible Asset, Useful Life                                                                      | 14 years         |            |
| Weighted Average                                                                                                |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Acquired Finite-lived Intangible Assets, Weighted Average Useful Life                                           | 6 years 8 months | 1 year 5 months |
| Trademarks [Member]                                                                                             |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | $ 47             |            |
| In Process Research and Development [Member]                                                                    |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 24               |            |
| Developed Technology Rights                                                                                     |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | $ 7              |            |
| Respawn Entertainment, LLC [Member] | Weighted Average                                                          |             |            |
| **Finite-Lived Intangible Assets**                                                                              |             |            |
| Acquired Finite-lived Intangible Assets, Weighted Average Useful Life                                           | 7 years 1 month  |            |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of identifiable intangible assets recognized as of the acquisition date.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472
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| X                                                                                                                                                                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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