Software Development and Intellectual Property Licenses (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Software development and intellectual property licenses:
Software development costs	$ 660	$ 512
Amortization:
Amortization of capitalized software development costs and intellectual property licenses	$ 341	$ 263	$ 241

Unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility through to the general release of the software products.

No definition available.

Name:	atvi_SoftwareDevelopmentCosts
Namespace Prefix:	atvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant