Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 13,069	$ 20,969	$ 58,746	$ 63,405
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	3,074	4,235	12,045	11,262
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	3,110	5,581	13,741	14,975
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	4,483	8,670	24,946	27,081
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 2,402	$ 2,483	$ 8,014	$ 10,087