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Goodwill And Acquisition-Related Intangibles, Net (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020 | Apr. 29, 2021
Finite-Lived Intangible Assets |  |  |
Asset Impairment Charges | $ 12 |  |
Glu Mobile Inc. [Member] |  |  |
Finite-Lived Intangible Assets |  |  |
Intangible Assets Acquired |  |  | $ 657
Glu Mobile Inc. [Member] | Developed Technology Rights [Member] |  |  |
Finite-Lived Intangible Assets |  |  |
Intangible Assets Acquired |  |  | 305
Glu Mobile Inc. [Member] | Trademarks [Member] |  |  |
Finite-Lived Intangible Assets |  |  |
Intangible Assets Acquired |  |  | 252
Glu Mobile Inc. [Member] | Registered User Base And Other Intangibles |  |  |
Finite-Lived Intangible Assets |  |  |
Intangible Assets Acquired |  |  | 12
Glu Mobile Inc. [Member] | In Process Research and Development [Member] |  |  |
Finite-Lived Intangible Assets |  |  |
Intangible Assets Acquired |  |  | $ 88
Minimum |  |  |
Finite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Asset, Useful Life | 1 year |  |
Maximum |  |  |
Finite-Lived Intangible Assets |  |  |
Finite-Lived Intangible Asset, Useful Life | 8 years |  |
Weighted Average |  |  |
Finite-Lived Intangible Assets |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 4 years 10 months 24 days | 3 years 6 months |
Weighted Average | Glu Mobile Inc. [Member] |  |  |
Finite-Lived Intangible Assets |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years 7 months 6 days |  |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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