INCOME AND SOCIAL CONTRIBUTION TAXES - Classification of net deferred asset (liability) (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
INCOME AND SOCIAL CONTRIBUTION TAXES
Total	R$ 3,553,806	R$ 3,755,686	R$ 2,971,707	R$ 3,011,794
Non-current assets	4,071,219	3,874,054	3,054,393	3,407,230
Non-current liabilities	R$ (517,413)	R$ (118,368)	R$ (82,686)	R$ (395,436)

The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]

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