Revenue Recognition (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Feb. 04, 2012	Oct. 29, 2011
Revenue Recognition (Textual) [Abstract]
Deferred income on shipments to distributors, gross	$ 294.1	$ 309.6
Deferred income on shipments to distributors, cost of sales	66.8	76.4	[1]
Change in net deferred income on shipments to distributors	$ 6.0
Standard product warranty term	12 months

[1] Includes stock-based compensation expense as follows: