Business Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Segment Reporting Information [Line Items]
Total net sales	$ 843.4	$ 763.4	$ 2,460.3	$ 2,163.4
Total operating income	140.6	100.6	404.1	377.3
Interest expense	17.1	5.6	34.5	18.1
Other expense (income), net	6.2	1.0	(33.3)	(10.7)
Income before income taxes	117.3	94.0	402.9	369.9
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total net sales	566.3	557.5	1,681.5	1,587.1
Total operating income	124.5	88.0	387.3	347.2
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	277.1	205.9	778.8	576.3
Total operating income	30.4	26.2	56.9	66.9
Operating Segments | Toric lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	185.9	181.0	553.7	516.1
Operating Segments | Multifocal lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	67.6	61.6	199.8	177.3
Operating Segments | Single-use sphere lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	163.8	159.3	491.9	449.8
Operating Segments | Non single-use sphere, other | CooperVision
Segment Reporting Information [Line Items]
Total net sales	149.0	155.6	436.1	443.9
Operating Segments | Office and surgical products | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	165.4	122.5	455.9	338.6
Operating Segments | Fertility | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	111.7	83.4	322.9	237.7
Corporate
Segment Reporting Information [Line Items]
Total operating income	$ (14.3)	$ (13.6)	$ (40.1)	$ (36.8)