Statements of Stockholders' Equity (Parenthetical) - $ / shares	9 Months Ended	12 Months Ended
	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Treasury Stock, Shares, Acquired	18.2	13.8	9.0
Common Stock, Dividends, Per Share, Declared	$ 1.95	$ 2.08	$ 1.88