Subsequent Events (Details) - $ / shares				12 Months Ended
	Aug. 06, 2015	Jul. 14, 2015	May. 07, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Subsequent Events
Cash dividends declared per share (in dollars per share)				$ 18.5	$ 1.8	$ 1.6
Regular Cash Dividend
Subsequent Events
Cash dividends declared per share (in dollars per share)			$ 0.50
Regular Cash Dividend | Subsequent Event
Subsequent Events
Cash dividends declared per share (in dollars per share)	$ 0.52	$ 0.52