Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 02, 2014	Jul. 27, 2013	Aug. 02, 2014	Jul. 27, 2013
Net revenues:
Product	$ 457,797	$ 447,993	$ 1,375,282	$ 1,401,986
Service	87,667	88,558	271,627	262,078
Total net revenues	545,464	536,551	1,646,909	1,664,064
Cost of revenues:
Product	145,518	160,441	441,416	499,415
Service	38,233	37,908	116,818	118,410
Total cost of revenues	183,751	198,349	558,234	617,825
Gross margin	361,713	338,202	1,088,675	1,046,239
Operating expenses:
Research and development	84,152	92,969	261,862	289,088
Sales and marketing	137,262	139,220	409,524	433,547
General and administrative	22,140	18,526	63,395	57,640
Amortization of intangible assets	131	13,124	10,145	41,131
Restructuring, goodwill impairment, and other related costs (Note 7)	131	0	89,051	0
Gain on sale of network adapter business	0	0	(4,884)	0
Total operating expenses	243,816	263,839	829,093	821,406
Income from operations	117,897	74,363	259,582	224,833
Interest expense	(9,176)	(9,247)	(27,606)	(46,047)
Interest and other income, net	5,299	76,684	3,943	76,781
Income before income tax	114,020	141,800	235,919	255,567
Income tax expense	26,668	23,104	81,367	111,177
Net income	$ 87,352	$ 118,696	$ 154,552	$ 144,390
Net income per share—basic	$ 0.20	$ 0.26	$ 0.35	$ 0.32
Net income per share—diluted	$ 0.20	$ 0.26	$ 0.34	$ 0.31
Shares used in per share calculation—basic	432,448	449,446	436,396	452,474
Shares used in per share calculation—diluted	441,789	461,344	448,596	464,861
Cash dividends declared per share	$ 0.035	$ 0.000	$ 0.035	$ 0.000