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INCOME AND SOCIAL CONTRIBUTION TAXES - Unrecognized deferred income tax assets (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2021	Dec. 31, 2020
INCOME AND SOCIAL CONTRIBUTION TAXES
Tax assets which have no expiration date	R$ 240,231	R$ 764,845
Foreign subsidiaries
INCOME AND SOCIAL CONTRIBUTION TAXES
Tax credits on capital losses for which no deferred tax asset recognised	1,256,438	1,180,067
Tax losses of state credits for which no deferred tax asset recognised	R$ 1,285,373	R$ 1,623,459

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- Definition

The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph e
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- Definition

The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]]

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-Name IAS
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-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph e
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- Definition

The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]]

+ References

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