Goodwill and Intangibles Assets, net (Components Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Total - gross	$ 3,205.5	$ 2,817.5
Total - accumulated amortization	(2,330.2)	(2,197.3)
Intangible assets, net	875.3	620.2
Software and software licenses
Finite-Lived Intangible Assets [Line Items]
Total - gross	2,253.8	1,975.2
Total - accumulated amortization	(1,588.1)	(1,483.7)
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Total - gross	714.3	614.1
Total - accumulated amortization	(530.8)	(506.0)
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Total - gross	237.4	228.2
Total - accumulated amortization	$ (211.3)	$ (207.6)