Goodwill And Intangible Assets (Schedule Of Finite-Lived Intangible Assets) (Details) (USD $)	12 Months Ended
	Oct. 26, 2013		Oct. 27, 2012
Finite-Lived Intangible Assets
Gross Carrying Value	$ 480,700,000	[1]	$ 546,710,000
Accumulated Amortization	462,032,000	[1]	437,445,000
Net Carrying Value	18,668,000	[1]	109,265,000
Weighted-Average Remaining Useful Life	0 years 6 months 29 days	[1]	1 year 1 month 28 days
Cost of Fully Amortized Intangible Assets	69,400,000
Trade name
Finite-Lived Intangible Assets
Gross Carrying Value	460,000		100,000
Accumulated Amortization	110,000		97,000
Net Carrying Value	350,000		3,000
Weighted-Average Remaining Useful Life	3 years 0 months 4 days		0 years 2 months 1 day
Core/developed technology
Finite-Lived Intangible Assets
Gross Carrying Value	192,340,000		218,845,000
Accumulated Amortization	185,254,000		173,070,000
Net Carrying Value	7,086,000		45,775,000
Weighted-Average Remaining Useful Life	0 years 4 months 6 days		1 year 1 month 20 days
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Value	287,090,000		327,765,000
Accumulated Amortization	276,473,000		264,278,000
Net Carrying Value	10,617,000		63,487,000
Weighted-Average Remaining Useful Life	0 years 6 months 4 days		1 year 1 month 28 days
Non-compete agreements
Finite-Lived Intangible Assets
Gross Carrying Value	810,000
Accumulated Amortization	195,000
Net Carrying Value	$ 615,000
Weighted-Average Remaining Useful Life	3 years 0 months 4 days

[1] During the fiscal year ended October 26, 2013, $69.4 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.