Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]
Treasury Stock, Shares, Acquired	8.5	13.5	13.8
Common Stock, Dividends, Per Share, Declared	$ 2.52	$ 2.24	$ 2.08