Commitments and Contingencies (Details) (USD $)	Sep. 30, 2014
Commitments and Contingencies [Line Items]
Maximum letter of credit that can be issued under the Revolver	$ 50,000,000
Letters of credit issued under the Revolver	$ 0

Maximum amount of letters of credit that can be issued, subject to the availability of the revolving credit facility.

No definition available.

Name:	atvi_AvailabilityForLetterOfCredit
Namespace Prefix:	atvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant