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Earnings Per Share - Antidilutive Securities (Details) (Stock Options [Member])
In Millions, unless otherwise specified
3 Months Ended
Sep. 30, 2014
Sep. 30, 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 23 22