Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Statement of Stockholders' Equity [Abstract]
Treasury Stock, Shares, Acquired	6.5	8.5	13.5
Common Stock, Dividends, Per Share, Declared	$ 3.06	$ 2.52	$ 2.24