Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 26, 2015	Jul. 31, 2016	Jul. 26, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate provision (as percent)	10.50%	12.30%	12.70%	13.30%
Decrease to provision for income taxes				$ 35
Decrease in unrecognized tax benefits reasonably possible	$ 15		$ 15