Operating Segments and Geographic Regions - Summary of Reportable Segment Net Revenues and Operating Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Segment net revenues	$ 1,637	$ 1,921	$ 3,119	$ 3,987
Segment operating income	338	959	817	1,754
Net effect from recognition (deferral) of deferred net revenues	(7)	(375)	(293)	(584)
Total net revenues	1,644	2,296	3,412	4,571
Restructuring and related costs	3	(13)	5	(43)
Interest and other expense (income), net (Note 18)	17	(43)	31	(14)
Income before income tax expense	321	1,002	786	1,768
Employee
Segment Reporting Information [Line Items]
Share-based compensation expense	(14)		(29)
Reportable segments
Segment Reporting Information [Line Items]
Segment net revenues	1,575	1,857	2,984	3,840
Segment operating income	457	752	813	1,605
Reportable segments | Activision
Segment Reporting Information [Line Items]
Segment net revenues	490	789	943	1,680
Segment operating income	92	363	151	804
Net effect from recognition (deferral) of deferred net revenues	(110)	(293)	(367)	(524)
Total net revenues	600	1,082	1,310	2,204
Reportable segments | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	401	433	675	916
Segment operating income	94	141	148	349
Net effect from recognition (deferral) of deferred net revenues	105	(82)	74	(69)
Total net revenues	296	515	601	985
Reportable segments | King
Segment Reporting Information [Line Items]
Segment net revenues	684	635	1,366	1,244
Segment operating income	271	248	514	452
Net effect from recognition (deferral) of deferred net revenues	(1)	(3)	(1)	1
Total net revenues	685	638	1,367	1,243
Reportable segments | Net revenues from external customers
Segment Reporting Information [Line Items]
Segment net revenues	1,564	1,835	2,964	3,793
Reportable segments | Net revenues from external customers | Activision
Segment Reporting Information [Line Items]
Segment net revenues	490	789	943	1,680
Reportable segments | Net revenues from external customers | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	390	411	655	869
Reportable segments | Net revenues from external customers | King
Segment Reporting Information [Line Items]
Segment net revenues	684	635	1,366	1,244
Reportable segments | Intersegment net revenues
Segment Reporting Information [Line Items]
Segment net revenues	11	22	20	47
Reportable segments | Intersegment net revenues | Activision
Segment Reporting Information [Line Items]
Segment net revenues	0	0	0	0
Reportable segments | Intersegment net revenues | Blizzard
Segment Reporting Information [Line Items]
Segment net revenues	11	22	20	47
Reportable segments | Intersegment net revenues | King
Segment Reporting Information [Line Items]
Segment net revenues	0	0	0	0
Non-reportable segments
Segment Reporting Information [Line Items]
Segment net revenues	73	86	155	194
Net effect from recognition (deferral) of deferred net revenues	(1)	3	1	8
Total net revenues	74	83	154	186
Reconciliation items
Segment Reporting Information [Line Items]
Net effect from recognition (deferral) of deferred net revenues	7	375	293	584
Net effect from recognition (deferral) of deferred net revenues and related cost of revenues	1	276	236	408
Share-based compensation expense	(100)	(43)	(199)	(194)
Amortization of intangible assets	(2)	(2)	(4)	(7)
Restructuring and related costs	3	(13)	5	(43)
Merger and acquisition-related fees and other expenses	(16)	0	(48)	0
Reconciliation items | Other segments
Segment Reporting Information [Line Items]
Segment operating income	(5)	(11)	14	(15)
Elimination of intersegment revenues
Segment Reporting Information [Line Items]
Segment net revenues	(11)	(22)	(20)	(47)
Net effect from recognition (deferral) of deferred net revenues	0	0	0	0
Total net revenues	$ (11)	$ (22)	$ (20)	$ (47)