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		6 Months Ended
	Apr. 27, 2013	Apr. 28, 2012	Apr. 27, 2013	Apr. 28, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 19,172	$ 23,858	$ 38,322	$ 45,677
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	3,541	4,596	7,487	8,971
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	4,500	5,603	9,185	10,631
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	8,012	10,687	16,157	20,463
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 3,119	$ 2,972	$ 5,493	$ 5,612