Goodwill (Details)	3 Months Ended
	Mar. 31, 2017 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 9,768,000,000
Other	(5,000,000)
Ending balance	9,763,000,000
Activision
Goodwill [Roll Forward]
Beginning balance	6,903,000,000
Other	(5,000,000)
Ending balance	6,898,000,000
Blizzard
Goodwill [Roll Forward]
Beginning balance	178,000,000
Other	0
Ending balance	178,000,000
King
Goodwill [Roll Forward]
Beginning balance	2,675,000,000
Other	0
Ending balance	2,675,000,000
Other
Goodwill [Roll Forward]
Beginning balance	12,000,000
Other	0
Ending balance	$ 12,000,000