Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 28, 2013	Jul. 29, 2012	Jul. 28, 2013	Jul. 29, 2012
Numerator:
Net income (in dollars)	$ 168	$ 218	$ 73	$ 624
Denominator:
Weighted average common shares outstanding	1,203	1,257	1,201	1,282
Effect of dilutive stock options, restricted stock units and employee stock purchase plan shares	17	11	17	10
Denominator for diluted earnings per share	1,220	1,268	1,218	1,292
Basic earnings per share (in dollars per share)	$ 0.14	$ 0.17	$ 0.06	$ 0.49
Diluted earnings per share (in dollars per share)	$ 0.14	$ 0.17	$ 0.06	$ 0.48
Potentially dilutive securities	1	11	1	12