Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Net revenues
Product	$ 467,281	$ 414,298	$ 1,399,687	$ 1,328,821
Service	88,051	88,552	259,726	268,148
Total net revenues	555,332	502,850	1,659,413	1,596,969
Cost of revenues
Product	173,637	149,321	513,221	498,012
Service	41,217	47,002	123,863	142,939
Total cost of revenues	214,854	196,323	637,084	640,951
Gross margin	340,478	306,527	1,022,329	956,018
Operating expenses:
Research and development	90,530	87,320	272,780	270,669
Sales and marketing	146,378	153,345	457,921	462,991
General and administrative	18,612	16,617	55,752	53,176
Legal fees associated with indemnification obligations and other related costs, net	0	0	0	124
Amortization of intangible assets	14,737	15,023	44,467	46,236
Total operating expenses	270,257	272,305	830,920	833,196
Income (loss) from operations	70,221	34,222	191,409	122,822
Interest expense	(12,029)	(42,066)	(37,804)	(84,357)
Interest and other income (loss), net	103	(519)	(1,345)	(160)
Income (loss) before income tax	58,295	(8,363)	152,260	38,305
Income tax expense (benefit)	14,995	(10,300)	11,080	(16,629)
Net income (loss)	$ 43,300	$ 1,937	$ 141,180	$ 54,934
Net income per share - basic (dollars per share)	$ 0.09	$ 0.00	$ 0.31	$ 0.12
Net income per share - diluted (dollars per share)	$ 0.09	$ 0.00	$ 0.30	$ 0.11
Shares used in per share calculation - basic	457,147	483,744	455,727	474,020
Shares used in per share calculation - diluted	469,571	509,548	471,719	500,741