Net Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Numerator:
Net earnings	$ 1,273	$ 1,077	$ 2,698	$ 2,309
Denominator:
Weighted-average shares used to compute basic net EPS	1,890	1,935	1,898	1,944
Dilutive effect of employee stock plans (in shares)	26	12	24	8
Weighted-average shares used to compute diluted net EPS	1,916	1,947	1,922	1,952
Net earnings per share:
Basic (in dollars per share)	$ 0.67	$ 0.56	$ 1.42	$ 1.19
Diluted (in dollars per share)	$ 0.66	$ 0.55	$ 1.40	$ 1.18
Options with exercise price greater than market price of stock
Other information related to EPS computation
Antidilutive securities excluded from the calculation of EPS (in shares)	19	53	19	53
Stock options combined exercise price unrecognized compensation excess tax benefits greater than market price
Other information related to EPS computation
Antidilutive securities excluded from the calculation of EPS (in shares)	7	2	8	6