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CONSOLIDATED FINANCIAL STATEMENTS - Assets held for sale (Details) R$ in Thousands, $ in Millions	Jan. 17, 2024	Dec. 31, 2023 BRL (R$)	Dec. 31, 2023 USD ($)
CONSOLIDATED FINANCIAL STATEMENTS
Expected proceeds from sale of equity interests in joint venture		R$ 1,573,000	$ 325
Assets held for sale		R$ 1,210,041
Diaco S.A.
CONSOLIDATED FINANCIAL STATEMENTS
Percentage of equity ownership in joint venture to be sold	49.85%
Gerdau Metaldom Corp.
CONSOLIDATED FINANCIAL STATEMENTS
Percentage of equity ownership in joint venture to be sold	50.00%

X

- Definition

The expected amount of proceeds to be received from the sale of equity interests in a joint venture under terms of an agreement.

+ References

No definition available.

+ Details

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X

- Definition

The proportion of ownership interest in a joint venture to be sold under terms of an agreement.

+ References

No definition available.

+ Details

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X

- Definition

The amount of current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Current assets; Disposal groups classified as held for sale [member]; Non-current assets or disposal groups classified as held for sale; Non-current assets or disposal groups classified as held for distribution to owners]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 66
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_66&doctype=Standard
-URIDate 2023-03-23

+ Details

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X

- 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.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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