Consolidated Balance Sheets (Parenthetical) - $ / shares	Oct. 25, 2015	Oct. 26, 2014
Stockholders’ equity:
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	2,500,000,000	2,500,000,000
Common stock, shares outstanding	1,160,000,000	1,221,000,000
Treasury stock, shares	793,000,000	717,000,000