Operating Segments and Geographic Region (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Operating Segments and Geographic Region
Number of operating segments	3
Segment Reporting Information [Line Items]
Consolidated net revenues	$ 1,324	$ 1,172
Net effect from changes in the deferral of net revenues	520	585
Number of concentration risk customers	0	0
Total platform
Segment Reporting Information [Line Items]
Consolidated net revenues	1,273	1,107
Console
Segment Reporting Information [Line Items]
Consolidated net revenues	749	688
Online subscriptions
Segment Reporting Information [Line Items]
Consolidated net revenues	275	256
Other
Segment Reporting Information [Line Items]
Consolidated net revenues	156	116
PC
Segment Reporting Information [Line Items]
Consolidated net revenues	93	47
Total geographic region
Segment Reporting Information [Line Items]
Consolidated net revenues	1,324	1,172
Total geographic area long-lived assets	133		141
North America
Segment Reporting Information [Line Items]
Consolidated net revenues	738	601
Total geographic area long-lived assets	89		90
Europe
Segment Reporting Information [Line Items]
Consolidated net revenues	487	485
Total geographic area long-lived assets	35		40
Asia Pacific
Segment Reporting Information [Line Items]
Consolidated net revenues	99	86
Total geographic area long-lived assets	9		11
Operating segments total
Segment Reporting Information [Line Items]
Consolidated net revenues	804	587
Activision
Segment Reporting Information [Line Items]
Consolidated net revenues	423	271
Blizzard
Segment Reporting Information [Line Items]
Consolidated net revenues	330	251
Distribution
Segment Reporting Information [Line Items]
Consolidated net revenues	$ 51	$ 65