CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
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	132,454,000	132,371,000	132,350,000