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FINANCIAL INSTRUMENTS - Capital management risk (Details) - Capital management risk R$ in Billions	12 Months Ended
	Dec. 31, 2021 BRL (R$)
FINANCIAL INSTRUMENTS
Average maturity	6 years
Minimum
FINANCIAL INSTRUMENTS
Net debt/EBITDA	1.0
Maximum
FINANCIAL INSTRUMENTS
Net debt/EBITDA	1.5
Gross debt limit	R$ 12

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- Definition

The target average maturity of debt as determined by management under the Company???s capital risk management plan.

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- Definition

The maximum amount of gross debt the Company may hold at one time, as determined by the management under the Company???s capital risk management plan.

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- Definition

Ratio of net debt to earnings before income tax depreciation and allowance (EBITDA) under capital management risk.

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- Definition

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

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