Business Segment Information - Schedule of Identifiable Assets by Segment (Details) - USD ($) $ in Millions	Apr. 30, 2022	Oct. 31, 2021
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 11,778.0	$ 9,606.2
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total Identifiable assets	6,825.6	6,965.9
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total Identifiable assets	4,448.4	2,395.6
Corporate
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 504.0	$ 244.7