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Debt (Tables)
12 Months Ended
Dec. 31, 2016
Long-Term Debt

Long-term debt including current maturities at December 31 consisted of:

 

     2016      2015  
(dollars in millions)              

2.875% notes due 2016

   $ —         $ 250.2   

1.375% notes due 2018

     499.1         498.2   

4.40% notes due 2021

     496.9         496.1   

3.000% notes due 2026

     495.9         —     

6.70% notes due 2026

     149.8         149.8   
  

 

 

    

 

 

 
   $ 1,641.7       $ 1,394.3