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Note 19 - Trade Receivables - Current Trade Receivables (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Statement Line Items [Line Items]    
Trade receivables R$ 5,140.1 R$ 5,335.7
Bad debt provision (555.3) (521.5)
Net, trade receivables 4,584.8 4,814.2
Related parties (Note 33) 294.5 130.6
Total current trade receivables R$ 4,879.3 R$ 4,944.8