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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2017
Jun. 30, 2016
Statement of Financial Position    
Contributed capital, par $ 1.00 $ 1.00
Contributed capital, shares authorized 1,000,000,000 1,000,000,000
Preferred Stock, Shares Issued 0 0
Common Shares, shares issued 77,697,792 77,452,946