Intangible Assets - Schedule of Goodwill (Details) $ in Millions	6 Months Ended
Apr. 30, 2020 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,428.9
Net additions	1.9
Translation	(30.8)
Ending balance	2,400.0
CooperVision
Goodwill [Roll Forward]
Beginning balance	1,765.4
Net additions	0.0
Translation	(27.2)
Ending balance	1,738.2
CooperSurgical
Goodwill [Roll Forward]
Beginning balance	663.5
Net additions	1.9
Translation	(3.6)
Ending balance	$ 661.8

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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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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