Employee Benefit Plans (Narrative) (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]
Shares repurchased	1.7	1.9	5.3	10.4