Intangible Assets, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	$ 2,445		$ 2,445		$ 2,438
Accumulated amortization, definite-lived intangible assets	(1,586)		(1,586)		(1,013)
Net carrying amount, definite-lived intangible assets	859		859		1,425
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	433		433		433
Total intangible assets, net	1,292		1,292		1,858
Amortization Expense Disclosure
Amortization expense	188	$ 211	573	$ 496
Activision trademark
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	386		386		386
Acquired trade names
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	47		47		47
Internally-developed franchises
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	1,154		1,154		1,154
Accumulated amortization, definite-lived intangible assets	(799)		(799)		(583)
Net carrying amount, definite-lived intangible assets	355		$ 355		$ 571
Internally-developed franchises | Minimum
Finite-Lived Intangible Assets
Estimated useful life			3 years		3 years
Internally-developed franchises | Maximum
Finite-Lived Intangible Assets
Estimated useful life			11 years		11 years
Developed software
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	601		$ 601		$ 595
Accumulated amortization, definite-lived intangible assets	(264)		(264)		(145)
Net carrying amount, definite-lived intangible assets	337		$ 337		$ 450
Developed software | Minimum
Finite-Lived Intangible Assets
Estimated useful life			2 years		3 years
Developed software | Maximum
Finite-Lived Intangible Assets
Estimated useful life			5 years		5 years
Customer base
Finite-Lived Intangible Assets
Estimated useful life			2 years		2 years
Gross carrying amount, definite-lived intangible assets	617		$ 617		$ 617
Accumulated amortization, definite-lived intangible assets	(497)		(497)		(266)
Net carrying amount, definite-lived intangible assets	120		120		351
Acquired trade names
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	54		54		54
Accumulated amortization, definite-lived intangible assets	(14)		(14)		(8)
Net carrying amount, definite-lived intangible assets	40		$ 40		$ 46
Acquired trade names | Minimum
Finite-Lived Intangible Assets
Estimated useful life			7 years		7 years
Acquired trade names | Maximum
Finite-Lived Intangible Assets
Estimated useful life			10 years		10 years
Other
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	19		$ 19		$ 18
Accumulated amortization, definite-lived intangible assets	(12)		(12)		(11)
Net carrying amount, definite-lived intangible assets	$ 7		$ 7		$ 7
Other | Minimum
Finite-Lived Intangible Assets
Estimated useful life			1 year		1 year
Other | Maximum
Finite-Lived Intangible Assets
Estimated useful life			15 years		8 years