Net Income Per Share (Details) (USD $) In Thousands, except Per Share data	3 Months Ended				9 Months Ended
	Jul. 30, 2011		Jul. 31, 2010		Jul. 30, 2011		Jul. 31, 2010
Net income	$ 1,937		$ 22,530		$ 54,934		$ 94,296
Weighted-average shares used in computing basic net income per share	483,744		449,489		474,020		443,795
Basic net income per share	$ 0.00		$ 0.05		$ 0.12		$ 0.21
Weighted-average shares used in computing diluted net income per share	509,548		481,863		500,741		481,764
Diluted net income per share	$ 0.00		$ 0.05		$ 0.11		$ 0.20
Convertible Subordinated Debt [Member]
Antidilutive potential common shares							4,736	[1]
Stock Options [Member]
Dilutive potential common shares	14,657		18,484		15,664		23,565
Antidilutive potential common shares	15,367	[1]	26,845	[1]	19,493	[1]	19,829	[1]
Stock Awards [Member]
Dilutive potential common shares	10,354		13,756		9,960		14,118
Antidilutive potential common shares	67	[1]	1,121	[1]	537	[1]	709	[1]
ESPP [Member]
Dilutive potential common shares	793		134		1,097		286

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