Summary of Significant Accounting Policies (Operating Cycle) (Details)	3 Months Ended												12 Months Ended
	Oct. 25, 2015	Jul. 26, 2015	Apr. 26, 2015	Jan. 25, 2015	Oct. 26, 2014	Jul. 27, 2014	Apr. 27, 2014	Jan. 26, 2014	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 25, 2015	Oct. 26, 2014	Oct. 27, 2013
Accounting Policies [Abstract]
Operating Cycle1	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	364 days	364 days	364 days