Intangible Assets - Schedule of Goodwill (Details) $ in Millions	6 Months Ended
	Apr. 30, 2021 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,447.3
Current period additions	49.7
Foreign currency translation adjustment	70.7
Ending balance	2,567.7
CooperVision
Goodwill [Roll Forward]
Beginning balance	1,779.3
Current period additions	31.1
Foreign currency translation adjustment	63.5
Ending balance	1,873.9
CooperSurgical
Goodwill [Roll Forward]
Beginning balance	668.0
Current period additions	18.6
Foreign currency translation adjustment	7.2
Ending balance	$ 693.8