Business Segment Information - Schedule of Identifiable Assets by Segment (Details) - USD ($) $ in Millions	Apr. 30, 2024	Oct. 31, 2023
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 12,047.4	$ 11,658.9
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total Identifiable assets	7,115.3	7,044.0
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total Identifiable assets	4,691.6	4,351.8
Corporate
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 240.5	$ 263.1