Earnings Per Share - Antidilutive Securities (Details) (Stock Options [Member]) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding stock options not included in the diluted net earnings per share calculation because the options were out of the money or to do so would have been antidilutive, approximately	1	1	1	1