Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 26, 2015	Jul. 27, 2014	Jul. 26, 2015	Jul. 27, 2014
Numerator:
Net income	$ 329	$ 301	$ 1,041	$ 816
Denominator:
Weighted average common shares outstanding (in shares)	1,221	1,218	1,225	1,213
Effect of dilutive stock options, restricted stock units and employee stock purchase plan shares (in shares)	10	15	13	17
Denominator for diluted earnings per share (in shares)	1,231	1,233	1,238	1,230
Basic earning per share (in dollars per share)	$ 0.27	$ 0.25	$ 0.85	$ 0.67
Diluted earning per share (in dollars per share)	$ 0.27	$ 0.24	$ 0.84	$ 0.66
Potentially dilutive securities (in shares)	0	0	1	0