Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Apr. 27, 2013		Apr. 28, 2012		Apr. 27, 2013		Apr. 28, 2012
Earnings Per Share, Basic
Net income	$ 46,949		$ 39,296		$ 25,694		$ 97,880
Weighted-average shares used in computing basic net income per share	453,133		457,541		453,988		455,017
Net income per share — basic	$ 0.10		$ 0.09		$ 0.06		$ 0.22
Earnings Per Share, Diluted
Net income	$ 46,949		$ 39,296		$ 25,694		$ 97,880
Weighted-average shares used in computing diluted net income per share	466,919		476,848		466,620		472,793
Net income per share — diluted	$ 0.10		$ 0.08		$ 0.06		$ 0.21
Weighted Average Number of Shares Outstanding Reconciliation
Weighted-average shares used in computing basic net income per share	453,133		457,541		453,988		455,017
Dilutive potential common shares in the form of stock options	3,744		9,112		4,109		9,501
Dilutive potential common shares in the form of other share-based awards	10,042		10,195		8,523		8,275
Weighted-average shares used in computing diluted net income per share	466,919		476,848		466,620		472,793
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	14,940	[1]	14,750	[1]	15,382	[1]	17,284	[1]
Other share-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	6	[1]	108	[1]	250	[1]	592	[1]

[1] These amounts are excluded from the computation of diluted net income per share.