Business Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Segment Reporting Information [Line Items]
Total net sales	$ 877.4	$ 829.8	$ 1,735.9	$ 1,616.9
Total operating income	96.3	132.7	245.8	263.6
Interest expense	26.1	10.8	52.2	17.4
Other expense, net	4.6	(41.8)	5.9	(39.4)
Income before income taxes	65.6	163.7	187.7	285.6
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Total net sales	589.3	553.8	1,170.6	1,115.2
Total operating income	137.9	135.4	298.0	262.8
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	288.1	276.0	565.3	501.7
Total operating income	(24.3)	10.9	(18.5)	26.6
Operating Segments | Toric lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	206.3	185.6	396.1	367.8
Operating Segments | Multifocal lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	74.1	66.4	145.9	132.2
Operating Segments | Single-use sphere lens | CooperVision
Segment Reporting Information [Line Items]
Total net sales	165.4	161.1	333.7	328.1
Operating Segments | Non single-use sphere, other | CooperVision
Segment Reporting Information [Line Items]
Total net sales	143.5	140.7	294.9	287.1
Operating Segments | Office and surgical | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	163.0	161.6	328.2	290.5
Operating Segments | Fertility | CooperSurgical
Segment Reporting Information [Line Items]
Total net sales	125.1	114.4	237.1	211.2
Corporate
Segment Reporting Information [Line Items]
Total operating income	$ (17.3)	$ (13.6)	$ (33.7)	$ (25.8)