Intangible Assets - Schedule of Goodwill (Details) $ in Millions	12 Months Ended
	Oct. 31, 2025 USD ($)
Goodwill [Roll Forward]
Balance, beginning	$ 3,838.4
Foreign currency translation adjustment	15.0
Balance, ending	3,853.4
CooperVision
Goodwill [Roll Forward]
Balance, beginning	1,797.8
Foreign currency translation adjustment	12.2
Balance, ending	1,810.0
CooperSurgical
Goodwill [Roll Forward]
Balance, beginning	2,040.6
Foreign currency translation adjustment	2.8
Balance, ending	$ 2,043.4