Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012	Jan. 31, 2011
Net revenue:
Product	$ 419	$ 430	$ 641	$ 646
Service and other	600	448	972	764
Total net revenue	1,019	878	1,613	1,410
Cost of revenue:
Cost of product revenue	52	46	84	78
Cost of service and other revenue	154	129	290	252
Amortization of acquired technology	4	5	8	9
Selling and marketing	344	330	580	550
Research and development	168	158	335	314
General and administrative	95	88	187	178
Amortization of other acquired intangible assets	10	11	31	22
Total costs and expenses	827	767	1,515	1,403
Operating income (loss)	192	111	98	7
Interest expense	(16)	(15)	(31)	(30)
Interest and other income, net	3	6	14	14
Income (loss) before income taxes	179	102	81	(9)
Income tax provision (benefit)	61	29	27	(12)
Net income (loss)	$ 118	$ 73	$ 54	$ 3
Basic net income (loss) per share	$ 0.4	$ 0.24	$ 0.18	$ 0.01
Shares used in basic per share calculations	297	308	298	312
Diluted net income (loss) per share	$ 0.39	$ 0.23	$ 0.18	$ 0.01
Shares used in diluted per share calculations	306	318	307	322
Dividends declared per common share	$ 0.15	$ 0	$ 0.30	$ 0