Goodwill and Intangible Assets Changes in carrying amount of intangible assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Other intangible assets, beginning balance	$ 130.7	$ 142.1
Amortization of Intangible Assets	(27.7)	(22.3)	$ (15.6)
Indefinite-lived Intangible Assets, Translation and Purchase Accounting Adjustments	(0.5)	(4.1)
Other intangible assets, ending balance	199.8	130.7	$ 142.1
Health Advances Acquisition [Member]
Finite-lived Intangible Assets Acquired	0.0	15.0
ExecuPharm Inc. [Member]
Finite-lived Intangible Assets Acquired	87.1	0.0
TMAC [Member] [Member]
Finite-lived Intangible Assets Acquired	$ 10.2	$ 0.0