Business Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Segment Reporting Information [Line Items]
Total net sales	$ 964.7	$ 931.6
Total operating income	182.0	153.1
Interest expense	26.0	29.9
Other expense, net	2.7	3.2
Income before income taxes	153.3	120.0
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total net sales	646.1	621.5
Total operating income	183.9	154.8
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	318.6	310.1
Total operating income	20.2	24.0
Operating Segments | Toric and multifocal | CooperVision
Segment Reporting Information [Line Items]
Total net sales	319.4	297.3
Operating Segments | Sphere, other | CooperVision
Segment Reporting Information [Line Items]
Total net sales	326.7	324.2
Operating Segments | Office and surgical | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	198.9	191.1
Operating Segments | Fertility | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	119.7	119.0
Corporate
Segment Reporting Information [Line Items]
Total operating income	$ (22.1)	$ (25.7)