Business Segment Information - Business Segment Net Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 3,308.4	$ 2,922.5	$ 2,430.9
CooperVision
Segment Reporting Information [Line Items]
Net sales	2,243.3	2,152.0	1,843.0
CooperSurgical
Segment Reporting Information [Line Items]
Net sales	1,065.1	770.5	587.9
Toric lens | CooperVision
Segment Reporting Information [Line Items]
Net sales	737.4	697.5	598.2
Multifocal lens | CooperVision
Segment Reporting Information [Line Items]
Net sales	264.4	238.6	197.0
Single-use sphere lens | CooperVision
Segment Reporting Information [Line Items]
Net sales	661.6	616.3	529.0
Non single-use sphere, other | CooperVision
Segment Reporting Information [Line Items]
Net sales	579.9	599.6	518.8
Office and surgical products | CooperSurgical
Segment Reporting Information [Line Items]
Net sales	633.6	451.3	358.8
Fertility | CooperSurgical
Segment Reporting Information [Line Items]
Net sales	$ 431.5	$ 319.2	$ 229.1