CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Common stock, par value	$ 0.125	$ 0.125
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	115,761,840	115,761,840
Common stock, shares outstanding	81,626,874	80,921,208
Treasury stock, shares at cost	34,134,966	34,840,632