Intangible Assets - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
Jul. 31, 2020 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,428.9
Net additions	1.8
Translation	14.3
Ending balance	2,445.0
CooperVision
Goodwill [Roll Forward]
Beginning balance	1,765.4
Net additions	0.0
Translation	10.0
Ending balance	1,775.4
CooperSurgical
Goodwill [Roll Forward]
Beginning balance	663.5
Net additions	1.8
Translation	4.3
Ending balance	$ 669.6

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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