CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Preferred stock, shares unissued	9,250,000	10,000,000
Preferred stock, shares authorized	10,000,000	10,000,000
Common Stock, Par or Stated Value Per Share	$ 2.50	$ 2.50
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	176,902,738	176,902,738