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Note 11 - Finance Cost and Income - Finance Income (Details) - BRL (R$)
R$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Statement Line Items [Line Items]      
Interest income R$ 454.0 R$ 458.8 R$ 513.6
Gains on derivative and exclusive investment funds 84.9 73.7 113.5
Financial instruments at fair value through profit or loss 227.6 247.5
Other financial results 17.4 14.3 21.3
Finance income, before adoption of new accounting policies 556.3 774.4 895.9
Effect of application of IAS 29 (hyperinflation) 182.5
Finance income 738.8 774.4 895.9
Cash and cash equivalents 270.7 233.4 241.5
Investment securities held for trading 12.9 26.9 51.1
Other receivables 170.4 198.5 221.0
Total R$ 454.0 R$ 458.8 R$ 513.6