Stockholders' Equity Fiscal Year 2014 Share Repurchase Plan (Details) - USD ($) $ / shares in Units, $ in Millions	5 Months Ended	12 Months Ended
	Oct. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Jun. 02, 2014
PercentOfSharesReceivedUnderASR			80.00%
Treasury Stock, Value, Acquired, Cost Method				$ 197.6
FiscalYear2014StockRepurchasePlan [Member] [Member]
Stock Repurchase Program, Authorized Amount					$ 150.0
Accelerated Share Repurchases, Initial Price Paid Per Share	$ 57.03		$ 52.52
Treasury Stock, Value, Acquired, Cost Method			$ 150.0
Treasury Stock, Shares, Acquired	2,630,009	345,165	2,284,844