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.

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

Other Intangible Assets, net and Goodwill - Goodwill Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Dec. 01, 2021
Goodwill [Line Items]
Goodwill	$ 7,803.4	$ 7,904.9
ProQuest
Goodwill [Line Items]
Goodwill	$ 1,891.5		$ 1,897.2