Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Common stock, par value (per share)	$ 1.00	$ 1.00
Common stock, shares authorized	342,857,143	342,857,143
Common stock, shares issued	139,835,110	139,720,701
Common stock, shares outstanding	139,021,760	138,907,351
Treasury stock, shares at cost	813,350	813,350
Series C Preferred Stock [Member]
Preferred stock, shares outstanding	5,200,000	5,200,000