Consolidated Balance Sheets (Parenthetical) - $ / shares	Oct. 27, 2019	Oct. 28, 2018
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	916,000,000	967,000,000
Treasury stock, shares	1,079,000,000	1,019,000,000