Goodwill And Intangible Assets (Schedule Of Goodwill Activity By Reportable Segment) (Details) (USD $) In Thousands	9 Months Ended
	Jul. 30, 2011		Oct. 30, 2010
Goodwill	$ 1,681,331		$ 1,690,782
Accumulated impairment losses	(45,832)		(45,832)
Tax and other adjustments during the nine months ended July 30, 2011	(9,451)	[1]
Goodwill, net	1,635,499		1,644,950
Data Storage Products [Member]
Goodwill	176,968		176,989
Tax and other adjustments during the nine months ended July 30, 2011	(21)	[1]
Goodwill, net	176,968		176,989
Ethernet Products [Member]
Goodwill	1,347,274		1,356,704
Accumulated impairment losses	(45,832)		(45,832)
Tax and other adjustments during the nine months ended July 30, 2011	(9,430)	[1]
Goodwill, net	1,301,442		1,310,872
Global Services [Member]
Goodwill	157,089		157,089
Goodwill, net	$ 157,089		$ 157,089

[1] The goodwill adjustment of $9.5 million was primarily a result of tax benefit from the exercise of stock awards of acquired companies.