Intangible Assets, Net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended							9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Activision trademark	Dec. 31, 2013 Activision trademark	Sep. 30, 2014 License agreements and other	Dec. 31, 2013 License agreements and other	Sep. 30, 2014 License agreements and other Maximum	Dec. 31, 2013 License agreements and other Maximum	Sep. 30, 2014 License agreements and other Minimum	Dec. 31, 2013 License agreements and other Minimum	Sep. 30, 2014 Internally developed franchises	Dec. 31, 2013 Internally developed franchises	Sep. 30, 2014 Internally developed franchises Maximum	Dec. 31, 2013 Internally developed franchises Maximum	Sep. 30, 2014 Internally developed franchises Minimum	Dec. 31, 2013 Internally developed franchises Minimum	Sep. 30, 2014 Acquired trade names	Dec. 31, 2013 Acquired trade names
Amortization expense disclosure
Amortization expense	$ 2	$ 3	$ 5	$ 9
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	433		433		433	386	386													47	47
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	(369)		(369)		(364)			(91)	(90)					(278)	(274)
Net carrying amount, definite-lived intangible assets	38		38		43			7	8					31	35
Definite-lived intangible assets, future amortization expense disclosure
2014 (remaining three months)	9		9
2015	13		13
2016	7		7
2017	4		4
2018	3		3
Thereafter	2		2
Total	$ 38		$ 38		$ 43			$ 7	$ 8					$ 31	$ 35