Goodwill and Intangibles Assets, net (Components Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Total - gross	$ 2,930.0	$ 2,817.5
Total - accumulated amortization	(2,242.7)	(2,197.3)
Intangible assets, net	687.3	620.2
Software and software licenses
Finite-Lived Intangible Assets [Line Items]
Total - gross	2,079.7	1,975.2
Total - accumulated amortization	(1,519.0)	(1,483.7)
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Total - gross	622.1	614.1
Total - accumulated amortization	(514.6)	(506.0)
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Total - gross	228.2	228.2
Total - accumulated amortization	$ (209.1)	$ (207.6)