CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	600,000,000	600,000,000
Common stock, shares issued	295,565,000	288,823,000
Treasury stock, shares	3,699,000	14,000