Goodwill and Other Intangible Assets - Intangible Assets Impairment (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	$ 4.9
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income	Impairment expense
Consumer Health
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	$ 2.2
BioPharma
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived		$ 12.8
Trade Names
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	0.2
AcipHex
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	2.6
ZolpiMist
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	1.4
Tussionex
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	0.5
Cefaclor
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived	$ 0.2
Natesto | BioPharma
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived		4.3
Tuzistra XR | BioPharma
Asset Impairment Charges [Abstract]
Impairment of intangible assets, finite-lived		$ 8.5