Intangible Assets, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	$ 2,445	$ 2,445
Accumulated amortization, definite-lived intangible assets	(2,143)	(1,772)
Net carrying amount, definite-lived intangible assets	302	673
Acquired Indefinite-lived Intangible Assets [Line Items]
Net carrying amount, indefinite-lived intangible assets	433	433
Total intangible assets, net	735	1,106
Amortization expense disclosure
Amortization expense	371	759	$ 708
Activision trademark
Acquired Indefinite-lived Intangible Assets [Line Items]
Net carrying amount, indefinite-lived intangible assets	386	386
Acquired trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Net carrying amount, indefinite-lived intangible assets	47	47
Internally-developed franchises
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	1,154	1,154
Accumulated amortization, definite-lived intangible assets	(1,032)	(869)
Net carrying amount, definite-lived intangible assets	$ 122	$ 285
Internally-developed franchises | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	3 years	3 years
Internally-developed franchises | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	11 years	11 years
Developed software
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	$ 601	$ 601
Accumulated amortization, definite-lived intangible assets	(456)	(301)
Net carrying amount, definite-lived intangible assets	$ 145	$ 300
Developed software | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	2 years	2 years
Developed software | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	5 years	5 years
Customer base
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	2 years	2 years
Gross carrying amount, definite-lived intangible assets	$ 617	$ 617
Accumulated amortization, definite-lived intangible assets	(617)	(573)
Net carrying amount, definite-lived intangible assets	0	44
Acquired trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	54	54
Accumulated amortization, definite-lived intangible assets	(23)	(16)
Net carrying amount, definite-lived intangible assets	$ 31	$ 38
Acquired trade names | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	7 years	7 years
Acquired trade names | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	10 years	10 years
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount, definite-lived intangible assets	$ 19	$ 19
Accumulated amortization, definite-lived intangible assets	(15)	(13)
Net carrying amount, definite-lived intangible assets	$ 4	$ 6
Other | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	1 year	1 year
Other | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	15 years	15 years