Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 26, 2020	Apr. 28, 2019	Apr. 26, 2020	Apr. 28, 2019
Numerator:
Net income	$ 755	$ 666	$ 1,647	$ 1,437
Denominator:
Weighted average common shares outstanding (in shares)	917	942	917	950
Effect of dilutive stock options, restricted stock units and employee stock purchase plan shares (in shares)	6	6	8	7
Denominator for diluted earnings per share (in shares)	923	948	925	957
Basic earnings per share (in dollars per share)	$ 0.82	$ 0.71	$ 1.80	$ 1.51
Diluted earnings per share (in dollars per share)	$ 0.82	$ 0.70	$ 1.78	$ 1.50
Potentially dilutive securities (in shares)	0	3	0	3