Stock-Based Compensation Plans (Stock option transactions) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Stock option transactions
Options outstanding, beginning of period shares	16,760
Granted shares	2,469
Exercised shares	(1,570)
Forfeited/expired shares	(60)
Options outstanding, end of period shares	17,599	16,760
Options exercisable, end of period shares	8,926
Options outstanding, weighted-average exercise price, beginning of period ($ per share)	$ 35.23
Granted, weighted-average exercise price ($ per share)	45.37
Exercised, weighted-average exercise price ($ per share)	28.68
Forfeited/expired, weighted-average exercise price ($ per share)	40.44
Options outstanding, weighted-average exercise price, end of period ($ per share)	37.22	$ 35.23
Options exercisable, weighted-average exercise price, end of period ($ per share)	$ 33.39
Options outstanding, weighted-average remaining contractual term, end of period (in years)	5 years 7 months 6 days
Options exercisable, weighted-average remaining contractual term, end of period (in years)	3 years 10 months 24 days
Options outstanding, aggregate intrinsic value, end of period	$ 156,418
Options exercisable, aggregate intrinsic value, end of period	109,872
Cash received from exercises of stock options under equity incentive plans	43,500	$ 68,400	$ 204,000
The total intrinsic value of options exercised during the period	23,400	$ 65,100	$ 58,900
Fair value of options vested in the period	22,800
Compensation cost related to unvested stock options granted under the Company's Omnibus Incentive Plans, not yet recognized	$ 39,500
Weighted-average period over which compensation cost related to unvested options is expected to be recognized (in years)	2 years 3 months 18 days
Stock options granted in November 2019	2,800
Grant date fair value of November 2019 stock option grants	$ 46.15