CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Trade receivables allowances	$ 8,375	$ 5,831
Common stock, par value	$ 12.5	$ 12.5
Common stock, authorized	500,000,000,000	500,000,000,000
Common stock, issued	115,761,840,000	115,761,840,000
Common stock, outstanding	81,558,970,000	80,921,208,000
Treasury stock, shares at cost	34,202,870,000	34,840,632,000