Corporate Investments And Funds Held For Clients (Classification Of Corporate Investments On The Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2013
Corporate Investments And Funds Held For Clients [Abstract]
Cash and cash equivalents	$ 1,639.3	[1]	$ 1,584.0		$ 1,404.2
Marketable Securities, Current	26.6	[1]	2,032.2
Long-term marketable securities	28.9		54.1	[1]
Total corporate investments	$ 1,694.8		$ 3,670.3

[1] (A) As of June 30, 2014, $2,015.8 million of short-term marketable securities and $183.8 million of cash and cash equivalents are related to the Company's outstanding commercial paper borrowings (see Note 8).