Goodwill and Intangibles Assets, net (Components Of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Total - gross	$ 3,368.4	$ 3,238.0
Total - accumulated amortization	(2,441.7)	(2,351.6)
Intangible assets, net	$ 926.7	886.4
Software and software licenses
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years
Total - gross	$ 2,411.4	2,292.9
Total - accumulated amortization	$ (1,682.0)	(1,606.6)
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Total - gross	$ 719.1	708.6
Total - accumulated amortization	$ (545.1)	(533.4)
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Total - gross	$ 237.9	236.5
Total - accumulated amortization	$ (214.6)	$ (211.6)