Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017	Jul. 31, 2016
Equity [Abstract]
Shares of common stock repurchased	9	9	20	90
Cost of stock repurchased	$ 375	$ 196	$ 787	$ 1,721
Average price paid per share (in dollars per share)	$ 44.34	$ 21.88	$ 39.48	$ 19.22