Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	May 03, 2014		Apr. 27, 2013		May 03, 2014		Apr. 27, 2013
Earnings Per Share, Basic
Net income (loss)	$ (13,684)		$ 46,949		$ 67,200		$ 25,694
Weighted-average shares used in computing basic net income (loss) per share	436,167		453,133		438,370		453,988
Net income (loss) per share—basic	$ (0.03)		$ 0.10		$ 0.15		$ 0.06
Earnings Per Share, Diluted
Net income (loss)	$ (13,684)		$ 46,949		$ 67,200		$ 25,694
Weighted-average shares used in computing diluted net income (loss) per share	436,167		466,919		451,999		466,620
Net income (loss) per share—diluted	$ (0.03)		$ 0.10		$ 0.15		$ 0.06
Weighted Average Number of Shares Outstanding Reconciliation
Weighted-average shares used in computing basic net income (loss) per share	436,167		453,133		438,370		453,988
Dilutive potential common shares in the form of stock options	0		3,744		2,435		4,109
Dilutive potential common shares in the form of other share-based awards	0		10,042		11,194		8,523
Weighted-average shares used in computing diluted net income (loss) per share	436,167		466,919		451,999		466,620
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	7,458	[1]	14,940	[1]	2,250	[1]	15,382	[1]
Other share-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	9,873	[1]	6	[1]	1,014	[1]	250	[1]

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