16. PROVISION FOR TAX, SOCIAL SECURITY, LABOR, CIVIL AND ENVIRONMENTAL RISKS AND JUDICIAL DEPOSITS (Details Narrative) - BRL (R$) R$ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Labor
Disclosure of fair value measurement of liabilities [line items]
Provision for laswuit	R$ 451,173	R$ 485,422
Civil
Disclosure of fair value measurement of liabilities [line items]
Provision for laswuit	148,212	137,857
Environmental
Disclosure of fair value measurement of liabilities [line items]
Provision for laswuit	R$ 37,733	R$ 7,716

The amount of current provision for legal proceedings. [Refer: Legal proceedings provision]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2017-01-01
-Section Example 10 A court case
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=sect_Example10Acourtcase&doctype=Illustrative%20Examples
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2017-01-01
-Paragraph 87
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_87&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_ShorttermLegalProceedingsProvision
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant