Stock Based Compensation Plans (Stock option transactions) (Details) (USD $)	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Stock option transactions
Options outstanding, beginning of period	23,911,000
Granted shares	1,810,000
Exercised shares	(3,732,000)
Forfeited/expired shares	(97,000)
Options outstanding, end of period	21,892,000	23,911,000
Options exercisable, end of period	13,942,000
Vested or expected to vest	21,868,000
Options outstanding weighted-average exercise price, beginning of period ($ per share)	$ 28.43
Granted, weighted-average exercise price ($ per share)	$ 41.62
Exercised weighted-average exercise price ($ per share)	$ 22.70
Forfeited/expired weighted-average exercise price ($ per share)	$ 29.98
Options outstanding weighted-average exercise price, end of period ($ per share)	$ 30.49	$ 28.43
Options exercisable, weighted-average exercise price ($ per share)	$ 30.62
Vested or expected to vest, weighted-average exercise price ($ per share)	$ 30.49
Options outstanding weighted-average remaining contractual term (in years)	4 years 8 months
Options exercisable weighted-average contractual term (in years)	3 years 2 months
Vested or expected to vest, weighted-average remaining contractual term (in years)	4 years 8 months
Options outstanding, aggregate intrinsic value	$ 177,689,000
Options exercisable, aggregate intrinsic value	116,910,000
Vested or expected to vest, aggregate intrinisic value	177,591,000
Fair value of options vested in the period	19,500,000
Cash received from exercises of stock options under equity incentive plans	81,200,000	113,600,000	50,000,000
The total intrinsic value of options exercised during the period	59,900,000	86,300,000	39,500,000
Compensation cost related to unvested stock options granted under the Company's plan, not yet recognized	$ 33,900,000
Weighted-average period over which compensation cost related to unvested options is expected to be recognized (in years)	1 year 11 months
Stock options granted in November 2014	2,600,000
Grant date fair value of November 2014 stock option grants	$ 36.71