CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Common stock, par value	$ 1	$ 1	$ 1
Common stock, shares authorized	480,000,000	480,000,000	480,000,000
Common stock, shares outstanding	133,315,000	131,907,000	131,703,000