Revenue Recognition (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	May 05, 2012	Oct. 29, 2011
Revenue Recognition (Textual) [Abstract]
Deferred income on shipments to distributors, gross	$ 311.6	$ 309.6
Deferred income on shipments to distributors, cost of sales	67.5	76.4
Change in net deferred income on shipments to distributors	$ 10.9
Standard product warranty term	12 months