Corporate Investments And Funds Held For Clients (Schedule Of Investment Of Funds Held For Clients) (Details) - USD ($) $ in Millions		Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2016	[2]
Corporate Investments And Funds Held For Clients [Abstract]
Restricted cash and cash equivalents held to satisfy client funds obligations	[1]	$ 4,372.1	$ 5,401.2	[2]	$ 12,267.5
Restricted short-term marketable securities held to satisfy client funds obligations		2,521.4	2,918.5
Restricted long-term marketable securities held to satisfy client funds obligations		20,244.3	18,971.8
Total funds held for clients		$ 27,137.8	$ 27,291.5

[1] See Note 6 for a reconciliation of restricted cash and restricted cash equivalents in funds held for clients on the Consolidated Balance Sheets.

[2] See Note 1 for a summary of adjustments.