General (Details)		3 Months Ended	12 Months Ended
	Feb. 09, 2016 $ / shares	Jan. 24, 2016 $ / shares shares	Oct. 25, 2015 $ / shares shares	Jan. 27, 2016 shares	Jan. 26, 2016 $ / shares shares
Fiscal year term		371 days	364 days
Before stock split
Common stock, par value (in dollars per share) | $ / shares					$ 0.0293
Common stock, number of shares authorized | shares					800,000,000
After stock split
Common stock, par value (in dollars per share) | $ / shares	$ 0.01465
Common stock, number of shares authorized | shares				1,600,000,000
Common Stock
Authorized stock split ratio	2
Common stock, par value (in dollars per share) | $ / shares		$ 0.01465	$ 0.01465
Common stock, number of shares authorized | shares		1,600,000,000	1,600,000,000