Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Common stock, par value (per share)	$ 1.00	$ 1.00
Common stock, shares authorized	1,200,000,000	1,200,000,000
Common stock, shares issued	978,499,721	978,044,909
Common stock, shares outstanding	972,806,269	972,351,457
Treasury stock, shares at cost	5,693,452	5,693,452
Series C Preferred Stock [Member]
Preferred stock, shares outstanding	5,200,000	5,200,000