Goodwill And Intangible Assets (Schedule Of Goodwill Activity By Reportable Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 25, 2014
Goodwill
Goodwill, Gross, Beginning Balance	$ 1,691,269
Accumulated impairment losses, Beginning Balance	(45,832)
Goodwill, Net, Beginning Balance	1,645,437
Goodwill, Written off related to divestitures	(4,131)	[1]
Goodwill, Tax and other adjustments	(677)	[2]
Goodwill, Gross, Ending Balance	1,686,461
Accumulated impairment losses, Ending Balance	(45,832)
Goodwill, Net, Ending Balance	1,640,629
SAN Products
Goodwill
Goodwill, Gross, Beginning Balance	176,878
Accumulated impairment losses, Beginning Balance	0
Goodwill, Net, Beginning Balance	176,878
Goodwill, Written off related to divestitures	(474)	[1]
Goodwill, Tax and other adjustments	(17)	[2]
Goodwill, Gross, Ending Balance	176,387
Accumulated impairment losses, Ending Balance	0
Goodwill, Net, Ending Balance	176,387
IP Networking Products
Goodwill
Goodwill, Gross, Beginning Balance	1,358,975
Accumulated impairment losses, Beginning Balance	(45,832)
Goodwill, Net, Beginning Balance	1,313,143
Goodwill, Written off related to divestitures	(3,657)	[1]
Goodwill, Tax and other adjustments	(660)	[2]
Goodwill, Gross, Ending Balance	1,354,658
Accumulated impairment losses, Ending Balance	(45,832)
Goodwill, Net, Ending Balance	1,308,826
Global Services
Goodwill
Goodwill, Gross, Beginning Balance	155,416
Accumulated impairment losses, Beginning Balance	0
Goodwill, Net, Beginning Balance	155,416
Goodwill, Written off related to divestitures	0	[1]
Goodwill, Tax and other adjustments	0	[2]
Goodwill, Gross, Ending Balance	155,416
Accumulated impairment losses, Ending Balance	0
Goodwill, Net, Ending Balance	$ 155,416

[1] The goodwill disposed relates to the sale of the Company’s network adapter business, see Note 3, “Acquisitions and Divestitures,” of the Notes to Condensed Consolidated Financial Statements.

[2] The goodwill adjustments during the three months ended January 25, 2014, were primarily a result of tax benefits from the exercise of stock awards of acquired companies.