Operating Segments and Geographic Region (Details 2) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (loss) from operations	$ 70,000,000	$ 227,000,000	$ 1,087,000,000	$ 967,000,000
Net effect from changes in the deferral of net revenues and related cost of sales	32,000,000	110,000,000	738,000,000	514,000,000
Stock-based compensation expense	(25,000,000)	(34,000,000)	(76,000,000)	(85,000,000)
Amortization of intangible assets	(3,000,000)	(3,000,000)	(8,000,000)	(7,000,000)
Fees and other expenses related to the Purchase Transaction and related debt financings	(62,000,000)	0	(62,000,000)	0
Interest and other investment income (expense), net	(4,000,000)	1,000,000	(1,000,000)	4,000,000
Consolidated income (loss) before income tax expense	66,000,000	228,000,000	1,086,000,000	971,000,000
Operating segments total
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (loss) from operations	128,000,000	154,000,000	495,000,000	545,000,000
Activision
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (loss) from operations	41,000,000	(14,000,000)	214,000,000	(84,000,000)
Blizzard
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (loss) from operations	88,000,000	168,000,000	282,000,000	629,000,000
Distribution
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (loss) from operations	$ (1,000,000)	$ 0	$ (1,000,000)	$ 0