Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 26, 2020	Jul. 28, 2019	Jul. 26, 2020	Jul. 28, 2019
Numerator:
Net income	$ 841	$ 571	$ 2,488	$ 2,008
Denominator:
Weighted average common shares outstanding (in shares)	915	929	916	943
Effect of dilutive stock options, restricted stock units and employee stock purchase plan shares (in shares)	7	8	8	7
Denominator for diluted earnings per share (in shares)	922	937	924	950
Basic earnings per share (in dollars per share)	$ 0.92	$ 0.61	$ 2.71	$ 2.13
Diluted earnings per share (in dollars per share)	$ 0.91	$ 0.61	$ 2.69	$ 2.11
Potentially dilutive securities (in shares)	0	3	0	3