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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