Employee Benefit Plans (Narrative) (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Shares repurchased	1.4	4.6	3.6	8.6