Description of Business (Details) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Oct. 11, 2013 USD ($) $ / shares shares	Dec. 31, 2015 segment shares	Dec. 31, 2013 USD ($)	May. 28, 2014 USD ($) shares
Stock Purchase Agreement [Line Items]
Shares of common stock repurchased	429
Cost of common stock repurchased under the stock repurchase program | $			$ 5,830
Shares outstanding		734
Number of reportable segments | segment		2
Activision Blizzard
Stock Purchase Agreement [Line Items]
Shares of common stock repurchased	429
Cost of common stock repurchased under the stock repurchase program | $	$ 5,830
Shares repurchase price (in dollars per share) | $ / shares	$ 13.60
Vivendi
Stock Purchase Agreement [Line Items]
Shares sold by Vivendi				41
Shares sold by Vivendi as a percent of holdings				50.00%
Proceeds from sale of stock by Vivendi | $				$ 850
Shares of Activision Blizzard common stock owned by a specific shareholder		41
Percent of Activision Blizzard common stock owned by a specific shareholder		6.00%
ASAC
Stock Purchase Agreement [Line Items]
Shares purchased by ASAC	172
Value of shares purchased by ASAC | $	$ 2,340
Share price purchased by ASAC (in dollars per share) | $ / shares	$ 13.60
Shares of Activision Blizzard common stock owned by a specific shareholder		172
Percent of Activision Blizzard common stock owned by a specific shareholder		23.00%
Public
Stock Purchase Agreement [Line Items]
Percent of Activision Blizzard common stock owned by a specific shareholder		71.00%