Business Segment Information - Schedule of Identifiable Assets by Segment (Details) - USD ($) $ in Millions	Jul. 31, 2025	Oct. 31, 2024
Segment Reporting Information [Line Items]
Total	$ 12,376.7	$ 12,315.2
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total	7,511.7	7,285.1
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total	4,671.0	4,832.0
Corporate
Segment Reporting Information [Line Items]
Total	$ 194.0	$ 198.1