Business Segment Information - Schedule of Identifiable Assets by Segment (Details) - USD ($) $ in Millions	Jul. 31, 2024	Oct. 31, 2023
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 12,108.0	$ 11,658.9
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total Identifiable assets	7,172.0	7,044.0
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total Identifiable assets	4,716.8	4,351.8
Corporate
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 219.2	$ 263.1