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Note 16 - Investment Securities
 12 Months Ended
Dec. 31, 2017
Statement Line Items [Line Items]  
Disclosure of investment securities [text block]
16.
INVESTMENT SECURITIES
 
    2017     2016  
             
Debt held-to-maturity
(i)
    
122.0
      
104.3
  
Non-current investments securities    
122.0
      
104.3
  
                 
Financial asset at fair value through profit or loss-held for trading    
11.9
      
282.8
  
Current investments securities    
11.9
      
282.8
  
                 
Total    
133.9
      
387.1
  
 
(i) The balance refers substantially to Bank Deposit Certificates - CDB linked to tax incentives.