Business Combinations (Schedule Of Fair Values Of Assets Acquired And Liabilities Assumed) (Details) (PopCap [Member], USD $) In Millions, unless otherwise specified	Aug. 31, 2011
PopCap [Member]
Business Acquisition [Line Items]
Current assets	$ 62
Property and equipment, net	6
Goodwill	563
Finite-lived intangible assets	302
Contingent consideration	(95)
Deferred income taxes, net	(51)
Other liabilities	(55)
Total purchase price	$ 732