Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Income Statement [Abstract]
Net sales	$ 787.2	$ 680.5
Cost of sales	268.8	229.8
Gross profit	518.4	450.7
Selling, general and administrative expense	319.1	261.2
Research and development expense	26.2	21.4
Amortization of intangibles	42.3	34.7
Operating income	130.8	133.4
Interest expense	6.6	6.4
Other expense (income), net	2.3	(12.5)
Income before income taxes	121.9	139.5
Provision for income taxes (Note 6)	26.6	(1,961.6)
Net income	$ 95.3	$ 2,101.1
Earnings per share (Note 7):
Basic (in dollars per share)	$ 1.93	$ 42.77
Diluted (in dollars per share)	$ 1.91	$ 42.31
Number of shares used to compute earnings per share:
Basic (in shares)	49.4	49.1
Diluted (in shares)	49.9	49.7
Other comprehensive income, net of tax:
Cash flow hedges	$ 13.3	$ 4.5
Foreign currency translation adjustment, net of tax	(49.2)	86.2
Comprehensive income	$ 59.4	$ 2,191.8