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Non-Operating Income and Deductions, Net (Tables)
3 Months Ended
Mar. 30, 2014
Non-Operating Income and Deductions, Net [Abstract]  
Non-operating Income and Deductions, Net
   
Three Months Ended
 
(millions of dollars)
 
 
March 30, 2014
  
March 31, 2013
 
Interest income
 $0.7  $0.7 
Interest expense
  (0.8)  (0.8)
Foreign exchange gains
  0.1   0.6 
Other deductions
  (0.3)  (0.4)
Non-operating income (deductions), net
 $(0.3) $0.1