Intangible Assets, Net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended					6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 License agreements and other	Dec. 31, 2012 License agreements and other	Jun. 30, 2013 License agreements and other Maximum	Dec. 31, 2012 License agreements and other Maximum	Jun. 30, 2013 License agreements and other Minimum	Dec. 31, 2012 License agreements and other Minimum	Jun. 30, 2013 Internally developed franchises	Dec. 31, 2012 Internally developed franchises	Jun. 30, 2013 Internally developed franchises Maximum	Dec. 31, 2012 Internally developed franchises Maximum	Jun. 30, 2013 Internally developed franchises Minimum	Dec. 31, 2012 Internally developed franchises Minimum	Jun. 30, 2013 Activision trademark	Dec. 31, 2012 Activision trademark	Jun. 30, 2013 Acquired trade names	Dec. 31, 2012 Acquired trade names
Amortization expense disclosure
Amortization expense	$ 3	$ 2	$ 6	$ 5
Finite-Lived Intangible Assets
Estimated useful life								10 years	10 years	3 years	3 years			12 years	12 years	11 years	11 years
Gross carrying amount, definite-lived intangible assets	407		407		407	98	98					309	309
Accumulated amortization, definite-lived intangible assets	(346)		(346)		(339)	(89)	(88)					(257)	(251)
Net carrying amount, definite-lived intangible assets	61		61		68	9	10					52	58
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	433		433		433													386	386	47	47
Definite-lived intangible assets, future amortization expense disclosure
2013 (remaining six months)	20		20
2014	18		18
2015	10		10
2016	6		6
2017	3		3
Thereafter	4		4
Total	$ 61		$ 61		$ 68	$ 9	$ 10					$ 52	$ 58