Business Segment Information - Schedule of Identifiable Assets by Segment (Details) - USD ($) $ in Millions	Jul. 31, 2019	Oct. 31, 2018
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 6,172.8	$ 6,112.8
Operating Segments \| CooperVision
Segment Reporting Information [Line Items]
Total Identifiable assets	3,801.3	3,746.0
Operating Segments \| CooperSurgical
Segment Reporting Information [Line Items]
Total Identifiable assets	2,184.4	2,201.7
Corporate
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 187.1	$ 165.1

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Name:	us-gaap_Assets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant