Other Income, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011
Other Income, Net [Abstract]
Proceeds from sales and maturities of available-for-sale securities	$ 844.3	$ 826.9
Gain on sale of buildings		1.8
Income from Broadridge Financial Solutions, Inc. outsourcing agreement	28.5	27.3
Cost of services provided pursuant to the Broadridge Financial Solutions, Inc. outsourcing agreement	27.9	26.7
Receivable for services rendered pursuant to the Broadridge Financial Solutions, Inc. outsourcing agreement	9.5		9.5
Impairment losses on available-for-sale securities		$ 8.6
Number of buildings reclassified as available for sale	2
Number of buildings sold	2