Fair Value Measurements (Details 4) (Nonrecurring, USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges - nonrecurring	$ 0	$ 0

Impairment charges related to assets that are measured on non-recurring basis.

No definition available.

Name:	atvi_ImpairmentChargesNonRecurring
Namespace Prefix:	atvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration