Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Cumulative unremitted foreign earnings	$ 1,000	$ 864	$ 751
Net unrecognized income tax benefits including interest and penalties	45.4	35.0
Interest and penalties	3.0	2.7
Interest expense	0.3	(0.5)
Percentage of reduction in effective tax rate due to unrecognized tax benefits	1.40%
Decrease in unrecognized tax benefits	3.7
Unrecognized tax benefits decrease, lower limit	5.0
Unrecognized tax benefit decrease, upper limit	$ 7.0