Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 26, 2013	Oct. 27, 2012	Oct. 29, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 73,618	$ 77,169	$ 83,076
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	14,519	15,433	15,607
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	17,509	17,952	18,959
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	29,425	33,257	36,068
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation	$ 12,165	$ 10,527	$ 12,442