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INCOME AND SOCIAL CONTRIBUTION TAXES - Classification of net deferred asset (liability) (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
INCOME AND SOCIAL CONTRIBUTION TAXES        
Total R$ 3,755,686 R$ 2,971,707 R$ 3,011,794 R$ 3,392,987
Non-current assets 3,874,054 3,054,393 3,407,230 4,307,462
Non-current liabilities R$ (118,368) R$ (82,686) R$ (395,436) R$ (914,475)