Condensed Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Net revenue:
Product	$ 402	$ 419	$ 629	$ 641
Service and other	566	580	986	933
Total net revenue	968	999	1,615	1,574
Cost of revenue:
Cost of product revenue	40	52	72	84
Cost of service and other revenue	162	150	307	282
Amortization of acquired technology	6	3	11	6
Selling and marketing	372	330	623	546
Research and development	179	164	357	327
General and administrative	109	95	207	187
Amortization of other acquired intangible assets	7	10	14	31
Total costs and expenses	875	804	1,591	1,463
Operating income from continuing operations	93	195	24	111
Interest expense	(7)	(15)	(15)	(30)
Interest and other income, net	1	3	3	14
Income before income taxes	87	183	12	95
Income tax provision (benefit)	16	62	(8)	32
Net income from continuing operations	71	121	20	63
Net income (loss) from discontinued operations	0	(3)	32	(9)
Net income	$ 71	$ 118	$ 52	$ 54
Basic Net Income (Loss) Per Share
Basic net income per share from continuing operations	$ 0.24	$ 0.41	$ 0.07	$ 0.21
Basic net income (loss) per share from discontinued operations	$ 0.00	$ (0.01)	$ 0.11	$ (0.03)
Basic net income per share	$ 0.24	$ 0.40	$ 0.18	$ 0.18
Shares used in basic per share calculations (shares)	296	297	296	298
Diluted Net Income (Loss) Per Share
Diluted net income per share from continuing operations	$ 0.23	$ 0.40	$ 0.07	$ 0.21
Diluted net income (loss) per share from discontinued operations	$ 0.00	$ (0.01)	$ 0.10	$ (0.03)
Diluted net income per share	$ 0.23	$ 0.39	$ 0.17	$ 0.18
Shares used in diluted per share calculations (shares)	303	306	302	307
Dividends declared per common share (dollars per share)	$ 0.17	$ 0.15	$ 0.34	$ 0.30