Intangible Assets, Net (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	$ 2,444		$ 2,438
Accumulated amortization, definite-lived intangible assets	(1,204)		(1,013)
Net carrying amount, definite-lived intangible assets	1,240		1,425
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	433		433
Total intangible assets, net	1,673		1,858
Amortization Expense Disclosure
Amortization expense	190	$ 82
Activision trademark
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	386		386
Acquired trade names
Indefinite Lived Intangible Assets
Net carrying amount, indefinite-lived intangible assets	47		47
Internally-developed franchises
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	1,154		1,154
Accumulated amortization, definite-lived intangible assets	(654)		(583)
Net carrying amount, definite-lived intangible assets	$ 500		$ 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		$ 595
Accumulated amortization, definite-lived intangible assets	(185)		(145)
Net carrying amount, definite-lived intangible assets	$ 416		$ 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
Accumulated amortization, definite-lived intangible assets	(343)		(266)
Net carrying amount, definite-lived intangible assets	274		351
Acquired trade names
Finite-Lived Intangible Assets
Gross carrying amount, definite-lived intangible assets	54		54
Accumulated amortization, definite-lived intangible assets	(10)		(8)
Net carrying amount, definite-lived intangible assets	$ 44		$ 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	$ 18		$ 18
Accumulated amortization, definite-lived intangible assets	(12)		(11)
Net carrying amount, definite-lived intangible assets	$ 6		$ 7
Other | Minimum
Finite-Lived Intangible Assets
Estimated useful life	1 year		1 year
Other | Maximum
Finite-Lived Intangible Assets
Estimated useful life	8 years		8 years