Annual report pursuant to Section 13 and 15(d)

Statements Of Condensed Consolidated Financial Position (Parenthetical)

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Statements Of Condensed Consolidated Financial Position (Parenthetical) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Class of Stock [Line Items]    
Preferred stock, par value $ 0 $ 0
Common shares, par value $ 0.125 $ 0.125
Common shares, authorized (in shares) 400,000,000 400,000,000
Common shares, issued (in shares) 149,195,469 149,195,469
Common shares, outstanding 142,495,902 142,021,718
Common shares in treasury 6,699,567 7,173,751
Preferred Class A [Member]
   
Class of Stock [Line Items]    
Preferred stock, shares authorized (in shares) 3,000,000 3,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred Class B [Member]
   
Class of Stock [Line Items]    
Preferred stock, shares authorized (in shares) 4,000,000 4,000,000
Preferred stock, shares issued (in shares) 0 0