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20. Provisions (Details 2) - BRL (R$) R$ in Thousands	Dec. 31, 2018	Dec. 31, 2017
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	R$ 8,793,100	R$ 8,231,000
Customer claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	207,600	219,900
Supplier claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	1,459,100	1,430,600
Other civil claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	719,300	733,100
Tax claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	1,439,100	1,291,000
Labor claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	624,200	677,400
Environmental claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	R$ 4,343,800	R$ 3,879,000

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No definition available.

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- Definition

The amount of contingent liabilities incurred relating to the entity's interests in associates. [Refer: Associates [member]; Contingent liabilities [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2018-01-01
-Paragraph 23
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_23_b&doctype=Standard
-URIDate 2018-03-16

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