Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Income Statement [Abstract]
Net sales	$ 646.2	$ 628.1
Cost of sales	219.7	209.6
Gross profit	426.5	418.5
Selling, general and administrative expense	258.3	250.0
Research and development expense	22.2	21.0
Amortization of intangibles	34.9	36.6
Operating income	111.1	110.9
Interest expense	11.6	18.2
Other expense (income), net	2.1	(1.1)
Income before income taxes	97.4	93.8
Provision (benefit) for income taxes (Note 7)	6.9	(9.4)
Net income	$ 90.5	$ 103.2
Earnings per share - basic (in dollars per share) (Note 8)	$ 1.84	$ 2.09
Earnings per share - diluted (in dollars per share) (Note 8)	$ 1.82	$ 2.07
Number of shares used to compute earnings per share:
Basic (in shares)	49.1	49.3
Diluted (in shares)	49.7	49.9