Employee Benefit Plans (Pension Plans' Target Asset Allocation Ranges) (Details)	12 Months Ended
	Jun. 30, 2016
United States Fixed Income Securities
Investment [Line Items]
Target asset allocation minimum	35.00%
Target asset allocation maximum	45.00%
United States Equity Securities [Member]
Investment [Line Items]
Target asset allocation minimum	14.00%
Target asset allocation maximum	24.00%
International Securities [Member]
Investment [Line Items]
Target asset allocation minimum	11.00%
Target asset allocation maximum	21.00%
Global Equity Securities [Domain]
Investment [Line Items]
Target asset allocation minimum	20.00%
Target asset allocation maximum	30.00%