Earnings Per Share (Schedule of Stock Options to Purchase Common Stock Not Included in Diluted Net Income Per Share Calculation) (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Numbers of stock option shares excluded	49	138	123	138
Range of exercise prices, lower limit	$ 162.28	$ 119.89	$ 162.28	$ 119.89
Range of exercise prices, upper limit	$ 162.28	$ 119.89	$ 162.28	$ 119.89
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Numbers of stock option shares excluded	1	0	5	1