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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Sep. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Preferred Stock authorized shares 10,000,000.0 10,000,000.0
Preferred Stock par value (in USD per share) $ 1.00 $ 1.00
Preferred Stock Shares issued 0 0
Common stock authorized shares 800,000,000 800,000,000
Common stock par value (in USD per share) $ 1.00 $ 1.00
Common stock Shares issued 446,900,000 446,100,000
Treasury stock, shares 23,600,000 23,300,000