Intangible Assets - Schedule of Goodwill (Details) $ in Millions	3 Months Ended
	Jan. 31, 2021 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,447.3
Current period additions	49.6
Foreign currency translation adjustment	56.4
Ending balance	2,553.3
CooperVision
Goodwill [Roll Forward]
Beginning balance	1,779.3
Current period additions	24.7
Foreign currency translation adjustment	50.0
Ending balance	1,854.0
CooperSurgical
Goodwill [Roll Forward]
Beginning balance	668.0
Current period additions	24.9
Foreign currency translation adjustment	6.4
Ending balance	$ 699.3