Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 29, 2018	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017
Equity [Abstract]
Shares of common stock repurchased	44	7	59	11
Cost of stock repurchased	$ 2,500	$ 282	$ 3,282	$ 412
Average price paid per share (in dollars per share)	$ 56.35	$ 38.15	$ 55.62	$ 35.89