Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 28, 2019	Jul. 29, 2018	Jul. 28, 2019	Jul. 29, 2018
Numerator:
Net income	$ 571	$ 1,016	$ 2,008	$ 2,281
Denominator:
Weighted average common shares outstanding (in shares)	929	994	943	1,026
Effect of dilutive stock options, restricted stock units and employee stock purchase plan shares (in shares)	8	11	7	13
Denominator for diluted earnings per share (in shares)	937	1,005	950	1,039
Basic earnings per share (in dollars per share)	$ 0.61	$ 1.02	$ 2.13	$ 2.22
Diluted earnings per share (in dollars per share)	$ 0.61	$ 1.01	$ 2.11	$ 2.20
Potentially dilutive securities (in shares)	3	0	3	0