Business Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Segment Reporting Information [Line Items]
Total net sales	$ 931.6	$ 858.5
Total operating income	153.1	149.5
Interest expense	29.9	26.1
Other expense, net	3.2	1.3
Income before income taxes	120.0	122.1
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total net sales	621.5	581.3
Total operating income	154.8	160.1
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	310.1	277.2
Total operating income	24.0	5.8
Operating Segments | Toric and multifocal | CooperVision
Segment Reporting Information [Line Items]
Total net sales	297.3	261.6
Operating Segments | Sphere, other | CooperVision
Segment Reporting Information [Line Items]
Total net sales	324.2	319.7
Operating Segments | Office and surgical | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	191.1	165.2
Operating Segments | Fertility | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	119.0	112.0
Corporate
Segment Reporting Information [Line Items]
Total operating income	$ (25.7)	$ (16.4)