Goodwill And Intangible Assets (Schedule Of Finite-Lived Intangible Assets) (Details) (USD $)	12 Months Ended
	Nov. 01, 2014		Oct. 26, 2013
Finite-Lived Intangible Assets
Gross Carrying Value	$ 14,560,000	[1]	$ 480,700,000
Accumulated Amortization	3,012,000	[1]	462,032,000
Net Carrying Value	11,548,000	[1]	18,668,000
Weighted-Average Remaining Useful Life	4 years 1 month 6 days	[1]	0 years 6 months 29 days
Cost of Fully Amortized Intangible Assets	477,300,000
Trade name
Finite-Lived Intangible Assets
Gross Carrying Value	590,000		460,000
Accumulated Amortization	227,000		110,000
Net Carrying Value	363,000		350,000
Weighted-Average Remaining Useful Life	3 years 0 months 0 days		3 years 0 months 4 days
Core/developed technology
Finite-Lived Intangible Assets
Gross Carrying Value	12,080,000		192,340,000
Accumulated Amortization	1,964,000		185,254,000
Net Carrying Value	10,116,000		7,086,000
Weighted-Average Remaining Useful Life	4 years 3 months 18 days		0 years 4 months 6 days
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Value	1,080,000		287,090,000
Accumulated Amortization	427,000		276,473,000
Net Carrying Value	653,000		10,617,000
Weighted-Average Remaining Useful Life	3 years 0 months 4 days		0 years 6 months 4 days
Non-compete agreements
Finite-Lived Intangible Assets
Gross Carrying Value	810,000		810,000
Accumulated Amortization	394,000		195,000
Net Carrying Value	$ 416,000		$ 615,000
Weighted-Average Remaining Useful Life	2 years 0 months 4 days		3 years 0 months 4 days

[1] During the fiscal year ended November 1, 2014, $477.3 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.