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Post-retirement benefits (Tables)
12 Months Ended
Dec. 31, 2018
Text block [abstract]  
Summary of Post Retirement Benefits
     12.31.2018      12.31.2017  

Medical benefits plan Brazil

     27.9        31.8  

Medical benefits plan subsidiaries abroad

     3.8        4.3  
  

 

 

    

 

 

 

Post-retirement benefits

     31.7        36.1