Acquisitions, Divestitures, AHS Acquisitions, Divestitures, AHS (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 29, 2017	Oct. 29, 2016	May 27, 2016
Liabilities assumed:
Goodwill	$ 2,255,326	$ 2,295,184
Ruckus
Assets acquired:
Cash and cash equivalents			$ 95,515
Short-term investments			150,257
Accounts receivable, net of allowances for doubtful accounts of $2,100			41,339
Inventories			64,000
Prepaid expenses and other current assets			5,252
Property and equipment, net			27,060
Identifiable intangible assets			418,000
Other assets			1,697
Total assets acquired			803,120
Liabilities assumed:
Accounts payable			16,375
Accrued employee compensation			17,514
Deferred revenue			14,520
Other accrued liabilities			33,808
Non-current deferred revenue			9,767
Deferred tax liabilities			64,853
Other non-current liabilities			41,033
Total liabilities assumed			197,870
Net assets acquired			605,250
Total purchase consideration (b)	$ 1,275,060
Goodwill			$ 669,810