Goodwill And Intangible Assets (Schedule Of Goodwill Activity By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 29, 2011		Oct. 30, 2010		Oct. 31, 2009
Goodwill [Line Items]
Goodwill	$ 1,676,799		$ 1,690,782		$ 1,705,766
Accumulated impairment losses	(45,832)		(45,832)		(45,832)	[1]
Goodwill disposed	(1,673)	[2]
Tax and other adjustments	(12,310)	[3]	(14,984)	[4]
Goodwill, net	1,630,967		1,644,950		1,659,934
Data Storage Products [Member]
Goodwill [Line Items]
Goodwill	176,968		176,989		176,989
Tax and other adjustments	(21)	[3]
Goodwill, net	176,968		176,989		176,989
Ethernet Products [Member]
Goodwill [Line Items]
Goodwill	1,344,415		1,356,704		1,371,688
Accumulated impairment losses	(45,832)		(45,832)		(45,832)	[1]
Tax and other adjustments	(12,289)	[3]	(14,984)	[4]
Goodwill, net	1,298,583		1,310,872		1,325,856
Global Services [Member]
Goodwill [Line Items]
Goodwill	155,416		157,089		157,089
Goodwill disposed	(1,673)	[2]
Goodwill, net	$ 155,416		$ 157,089		$ 157,089

[1] During the second quarter of fiscal year 2009, the Company made a decision to no longer offer its suite of Files products and concluded that the fair value of the Files reporting unit was less than its carrying amount. The fair value of the Files business was determined using comparable companies' data. The Company conducted the second step of the goodwill impairment test and determined that all of the Files goodwill was impaired. Accordingly, the Company recorded a goodwill impairment charge of $45.8 million for the three months ended May 2, 2009.

[2] Goodwill disposed relates to sale of Strategic Business Systems, Inc. ("SBS"), a wholly owned subsidiary, see Note 17, "Loss on Sale of Subsidiary," of the Notes to Consolidated Financial Statements.

[3] The goodwill adjustment of $12.3 million was primarily a result of tax benefit from the exercise of stock awards of acquired companies.

[4] The goodwill adjustment of $15.0 million was primarily a result of realization of deferred tax assets and tax benefit of stock options exercised from acquired companies, partially offset by the impact of adoption of the new accounting standard for its convertible debt from acquired companies.