Stock-Based Compensation Plans (Stock option transactions) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Stock option transactions
Options outstanding, beginning of period shares	17,599
Granted shares	2,827
Exercised shares	(928)
Forfeited/expired shares	(14)
Options outstanding, end of period shares	19,484
Options exercisable, end of period shares	10,525
Options outstanding, weighted-average exercise price, beginning of period ($ per share)	$ 37.22
Granted, weighted-average exercise price ($ per share)	46.15
Exercised, weighted-average exercise price ($ per share)	34.22
Forfeited/expired, weighted-average exercise price ($ per share)	38.89
Options outstanding, weighted-average exercise price, end of period ($ per share)	38.65
Options exercisable, weighted-average exercise price, end of period ($ per share)	$ 34.55
Options outstanding, weighted-average remaining contractual term, end of period (in years)	6 years 1 month 6 days
Options exercisable, weighted-average remaining contractual term, end of period (in years)	4 years 3 months 18 days
Options outstanding, aggregate intrinsic value, end of period	$ 148,003
Options exercisable, aggregate intrinsic value, end of period	119,944
Cash received from exercises of stock options	31,600	$ 2,800
Compensation cost related to unvested stock options granted under the Company's Omnibus Incentive Plans, not yet recognized	$ 53,000