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Asbestos-Related Liabilities (Summary Of Claims Activity) (Details)
6 Months Ended
Jun. 30, 2012
Dec. 31, 2010
Liability for Asbestos and Environmental Claims [Abstract]    
Beginning claims 50,000 50,000
New claims 1,500  
Settlements or dismissals (1,000)  
Ending claims 50,500 50,000