Other Income, Net (Other Income) (Details) (USD $) In Millions	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Other Income, Net [Abstract]
Interest income on corporate funds	$ (29.6)	$ (30.7)
Realized gains on available-for-sale securities	(4.3)	(12.2)
Realized losses on available-for-sale securities	0.3	0.4
Impairment losses on assets held for sale		8.6
Gains on sales of buildings		(1.8)
Other, net	(0.6)	(1.5)
Other income, net	$ (34.2)	$ (37.2)