Business Segment Information - Schedule of Business Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 3,895.4	$ 3,593.2	$ 3,308.4
Operating income	705.7	533.1	507.6
Interest expense	114.3	105.3	57.3
Other expense, net	9.1	14.9	(25.0)
Income before income taxes	582.3	412.9	475.3
Total assets	12,315.2	11,658.9	11,492.3
Depreciation expense	173.9	181.5	166.6
Amortization expense	201.2	186.2	179.5
Capital expenditures	421.2	392.5	242.0
Operating Segments | CooperVision
Segment Reporting Information [Line Items]
Net sales	2,609.4	2,423.7	2,243.3
Operating income	676.2	587.7	494.3
Total assets	7,285.1	7,044.0	6,778.9
Depreciation expense	151.8	156.9	144.5
Amortization expense	28.2	32.9	32.3
Capital expenditures	388.6	364.4	223.0
Operating Segments | CooperSurgical
Segment Reporting Information [Line Items]
Net sales	1,286.0	1,169.5	1,065.1
Operating income	118.3	16.1	67.1
Total assets	4,832.0	4,351.8	4,407.8
Depreciation expense	22.1	24.6	22.1
Amortization expense	173.0	153.3	147.2
Capital expenditures	32.6	28.1	19.0
Corporate
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0
Operating income	(88.8)	(70.7)	(53.8)
Total assets	198.1	263.1	305.6
Depreciation expense	0.0	0.0	0.0
Amortization expense	0.0	0.0	0.0
Capital expenditures	$ 0.0	$ 0.0	$ 0.0