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Note 25 - Trade Payables - Components of Trade Payables (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Statement Line Items [Line Items]    
Trade payables, noncurrent R$ 175.1 R$ 237.8
Non-current 175.1 237.8
Trade payables, current 10,418.4 9,793.0
Related Parties, current 1,435.6 1,075.8
Current 11,854.0 10,868.8
Total R$ 12,029.1 R$ 11,106.6