Dividends And Stock Repurchase Program (Schedule Of Shares Repurchased Under Programs) (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Mar. 31, 2012
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	8,248,066
Total Cost	$ 367.5
Authorized On November 15, 2006 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	908,399
Total Cost	35.0
Authorized On May 13, 2008 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	1,027,417
Total Cost	50.0
Authorized On November 11, 2009 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	972,205
Total Cost	50.0
Authorized On August 11, 2010 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	1,103,628
Total Cost	50.0
Authorized On November 10, 2010 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	968,105
Total Cost	50.0
Authorized On May 20, 2011 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	2,396,143
Total Cost	100.0
Authorized On November 2, 2011 [Member]
Schedule Of Shares Repurchased Under Programs [Line Items]
Shares Repurchased	872,169
Total Cost	$ 32.5