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26. EMPLOYEE BENEFITS (Details 9) - BRL (R$) R$ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of defined benefit plans [line items]
Allocation of plan assets	R$ 3,305,356	R$ 3,193,493	R$ 2,684,736
Allocation of plan assets percent	100.00%	100.00%
Variable income
Disclosure of defined benefit plans [line items]
Allocation of plan assets	R$ 50,966	R$ 62,904
Allocation of plan assets percent	1.54%	1.97%
Fixed income
Disclosure of defined benefit plans [line items]
Allocation of plan assets	R$ 3,085,783	R$ 2,966,272
Allocation of plan assets percent	93.36%	92.88%
Real estate
Disclosure of defined benefit plans [line items]
Allocation of plan assets	R$ 44,083	R$ 42,383
Allocation of plan assets percent	1.33%	1.33%
Others
Disclosure of defined benefit plans [line items]
Allocation of plan assets	R$ 124,524	R$ 121,934
Allocation of plan assets percent	3.77%	3.82%

X

- References

No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 57
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_57_a&doctype=Standard
-URIDate 2017-03-09

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