Stock-Based Compensation (Detail 2) (Stock Options, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2014
Information about options outstanding, by exercise price range
Options Outstanding - Shares Outstanding	57,853
Options Outstanding - Weighted Average Remaining Contractual Term	4 years 3 months 18 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 27
Options Exercisable - Shares Exercisable	30,459
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 33
$0-$9.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 0
Exercise price range, upper range limit (in dollars per share)	$ 9.99
Options Outstanding - Shares Outstanding	324
Options Outstanding - Weighted Average Remaining Contractual Term	3 years 8 months 12 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 7
Options Exercisable - Shares Exercisable	323
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 7
$10-$19.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 10
Exercise price range, upper range limit (in dollars per share)	$ 19.99
Options Outstanding - Shares Outstanding	18,387
Options Outstanding - Weighted Average Remaining Contractual Term	5 years 9 months 18 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 14
Options Exercisable - Shares Exercisable	3,620
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 14
$20-$29.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 20
Exercise price range, upper range limit (in dollars per share)	$ 29.99
Options Outstanding - Shares Outstanding	21,077
Options Outstanding - Weighted Average Remaining Contractual Term	5 years 9 months 18 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 26
Options Exercisable - Shares Exercisable	9,358
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 25
$30-$39.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 30
Exercise price range, upper range limit (in dollars per share)	$ 39.99
Options Outstanding - Shares Outstanding	2,502
Options Outstanding - Weighted Average Remaining Contractual Term	3 years 6 months
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 36
Options Exercisable - Shares Exercisable	1,628
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 36
$40-$49.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 40
Exercise price range, upper range limit (in dollars per share)	$ 49.99
Options Outstanding - Shares Outstanding	14,910
Options Outstanding - Weighted Average Remaining Contractual Term	4 months 24 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 43
Options Exercisable - Shares Exercisable	14,877
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 43
$50-$59.99
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 50
Exercise price range, upper range limit (in dollars per share)	$ 59.99
Options Outstanding - Shares Outstanding	511
Options Outstanding - Weighted Average Remaining Contractual Term	2 years 3 months 18 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 52
Options Exercisable - Shares Exercisable	511
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 52
$60 and over
Information about options outstanding, by exercise price range
Exercise price range, lower range limit (in dollars per share)	$ 60
Options Outstanding - Shares Outstanding	142
Options Outstanding - Weighted Average Remaining Contractual Term	1 month 6 days
Options Outstanding - Weighted Average Exercise Price (in dollars per share)	$ 71
Options Exercisable - Shares Exercisable	142
Options Exercisable - Weighted-Average Exercise Price (in dollars per share)	$ 71