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Retirement Benefits (Tables)
3 Months Ended
Mar. 31, 2014
Retirement Benefits Pension And Postretirement [Line Items]  
Schedule Of Net Benefit Costs [Table Text Block]
   U.S. Plans Non-U.S. Plans Total 
 (In millions) 2014 2013 2014 2013 2014 2013 
               
 Three months ended March 31,             
               
 Service cost $ -  -  3.5  3.6  3.5  3.6 
 Interest cost on projected benefit obligation  11.4  10.6  5.8  4.8  17.2  15.4 
 Return on assets – expected  (15.4)  (14.2)  (3.8)  (3.2)  (19.2)  (17.4) 
 Amortization of losses  7.2  11.3  0.5  1.6  7.7  12.9 
 Amortization of prior service cost  -  -  0.2  0.6  0.2  0.6 
 Settlement loss  -  -  0.7  0.3  0.7  0.3 
 Net periodic pension cost$ 3.2  7.7  6.9  7.7  10.1  15.4 
Schedule of Costs of Retirement Plans [Table Text Block]
   UMWA Plans Black Lung and Other Plans Total 
 (In millions) 2014 2013 2014 2013 2014 2013 
               
 Three months ended March 31,             
               
 Service cost $ -  -  -  0.1  -  0.1 
 Interest cost on accumulated postretirement benefit obligations  4.8  5.0  0.6  0.5  5.4  5.5 
 Return on assets – expected  (5.6)  (5.2)  -  -  (5.6)  (5.2) 
 Amortization of losses  3.7  5.0  0.2  0.1  3.9  5.1 
 Amortization of prior service (credit) cost  (1.1)  -  0.4  0.4  (0.7)  0.4 
 Net periodic postretirement cost$ 1.8  4.8  1.2  1.1  3.0  5.9