Corporate Investments And Funds Held For Clients (Schedule Of Investment Of Funds Held For Clients) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Jun. 30, 2014
Corporate Investments And Funds Held For Clients [Abstract]
Restricted cash and cash equivalents held to satisfy client funds obligations	$ 4,047.0	$ 1,187.8
Restricted short-term marketable securities held to satisfy client funds obligations	4,497.7	1,312.5
Restricted long-term marketable securities held to satisfy client funds obligations	16,320.6	16,757.7
Total funds held for clients	$ 24,865.3	$ 19,258.0