Operating Segments and Geographic Regions - Summary of Reportable Segment Net Revenues and Operating Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Segment net revenues	$ 1,481	$ 2,066
Segment operating income	479	795
Net effect from recognition (deferral) of deferred net revenues	(287)	(209)
Total net revenues	1,768	2,275
Restructuring and related costs	2	(30)
Interest and other expense (income), net (Note 18)	14	30
Income before income tax expense	465	765
Share-based compensation liability	15
Reportable segments
Segment Reporting Information [Line Items]
Segment net revenues	1,409	1,983
Segment operating income	355	853
Reportable segments | Activision
Segment Reporting Information [Line Items]
Segment net revenues	453	891
Segment operating income	59	442
Net effect from recognition (deferral) of deferred net revenues	(257)	(232)
Total net revenues	710	1,123
Reportable segments | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	274	483
Segment operating income	53	208
Net effect from recognition (deferral) of deferred net revenues	(30)	13
Total net revenues	304	470
Reportable segments | King
Segment Reporting Information [Line Items]
Segment net revenues	682	609
Segment operating income	243	203
Net effect from recognition (deferral) of deferred net revenues	0	4
Total net revenues	682	605
Reportable segments | Net revenues from external customers
Segment Reporting Information [Line Items]
Segment net revenues	1,400	1,958
Reportable segments | Net revenues from external customers | Activision
Segment Reporting Information [Line Items]
Segment net revenues	453	891
Reportable segments | Net revenues from external customers | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	265	458
Reportable segments | Net revenues from external customers | King
Segment Reporting Information [Line Items]
Segment net revenues	682	609
Reportable segments | Intersegment net revenues
Segment Reporting Information [Line Items]
Segment net revenues	9	25
Reportable segments | Intersegment net revenues | Activision
Segment Reporting Information [Line Items]
Segment net revenues	0	0
Reportable segments | Intersegment net revenues | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	9	25
Reportable segments | Intersegment net revenues | King
Segment Reporting Information [Line Items]
Segment net revenues	0	0
Non-reportable segments
Segment Reporting Information [Line Items]
Segment net revenues	81	108
Net effect from recognition (deferral) of deferred net revenues	0	6
Total net revenues	81	102
Reconciliation items
Segment Reporting Information [Line Items]
Net effect from recognition (deferral) of deferred net revenues	287	209
Net effect from recognition (deferral) of deferred net revenues and related cost of revenues	235	132
Share-based compensation expense	(98)	(151)
Amortization of intangible assets	(2)	(5)
Restructuring and related costs	2	(30)
Merger and acquisition-related fees and other expenses	(32)	0
Reconciliation items | Other segments
Segment Reporting Information [Line Items]
Segment operating income	19	(4)
Elimination of intersegment revenues
Segment Reporting Information [Line Items]
Segment net revenues	(9)	(25)
Net effect from recognition (deferral) of deferred net revenues	0	0
Total net revenues	$ (9)	$ (25)