Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Net revenue:
Product	$ 1,515	$ 1,479	$ 1,480
Service and other	2,656	2,329	1,969
Total net revenue	4,171	3,808	3,449
Cost of revenue:
Cost of product revenue	130	146	143
Cost of service and other revenue	429	429	338
Amortization of acquired technology	18	10	9
Selling and marketing	1,219	1,033	959
Research and development	685	618	566
General and administrative	422	381	341
Amortization of other acquired intangible assets	35	23	11
Total costs and expenses	2,938	2,640	2,367
Operating income from continuing operations	1,233	1,168	1,082
Interest expense	(30)	(50)	(60)
Interest and other income, net	7	20	20
Income from continuing operations before income taxes	1,210	1,138	1,042
Income tax provision	387	374	354
Net income from continuing operations	823	764	688
Net income (loss) from discontinued operations	35	28	(54)
Net income	$ 858	$ 792	$ 634
Basic net income per share from continuing operations	$ 2.78	$ 2.58	$ 2.24
Basic net income (loss) per share from discontinued operations	$ 0.11	$ 0.09	$ (0.18)
Basic net income per share	$ 2.89	$ 2.67	$ 2.06
Shares used in basic per share calculations	297	296	307
Diluted net income per share from continuing operations	$ 2.72	$ 2.51	$ 2.17
Diluted net income (loss) per share from discontinued operations	$ 0.11	$ 0.09	$ (0.17)
Diluted net income per share	$ 2.83	$ 2.60	$ 2.00
Shares used in diluted per share calculations	303	305	317
Dividends declared per common share	$ 0.68	$ 0.60	$ 0.00