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CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares
Jun. 30, 2018
Jun. 30, 2017
Statement of Financial Position [Abstract]    
Common stock - par value (in usd per share) $ 0.001 $ 0.001
Common stock - shares authorized 3,580,000,000 3,580,000,000
Common stock - shares outstanding 989,000,000 1,029,000,000
Treasury stock - shares 682,000,000 632,000,000