XML 114 R89.htm IDEA: XBRL DOCUMENT
v3.24.1

INVESTMENTS IN ASSOCIATES AND JOINT VENTURES (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Balance at beginning of year | R$ 3,896,518 | R$ 3,340,775 | R$ 2,271,629
Equity in earnings | 827,606 | 1,151,827 | 563,158
Cumulative Translation Adjustment | 176,214 | (205,592) | 225,507
Capital increase | 524,185 | 35,001 | 27,500
Capital decrease |  |  | (141,095)
Conversion of intercompany loan into equity interest | 141,070 |  |
Negative goodwill in acquisition of equity interest | 11,195 |  |
Presentation as Assets held for sale | (1,210,041) |  |
Shares repurchase | (47,006) |  |
Results in operations with subsidiary and joint ventures (note 3.4) |  |  | 511,514
Dividends/Interest on equity | (461,292) | (425,493) | (117,438)
Balance at end of year | 3,858,449 | 3,896,518 | 3,340,775
Ubirata Tecnologia S.A |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Capital increase | 9,375 |  |
Addiante S.A. |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Capital increase | 90,000 |  |
Brasil ao Cubo S.A. |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Capital increase | 36,653 |  |
Newave Energia S.A |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Capital increase | 388,157 |  |
Investments in North America |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Balance at beginning of year | 2,428,237 | 1,871,275 | 908,339
Equity in earnings | 591,354 | 884,437 | 279,948
Cumulative Translation Adjustment | 142,830 | (76,795) | 173,934
Results in operations with subsidiary and joint ventures (note 3.4) |  |  | 511,514
Dividends/Interest on equity | (396,015) | (250,680) | (2,460)
Balance at end of year | 2,766,406 | 2,428,237 | 1,871,275
Investments in South America |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Balance at beginning of year | 1,060,770 | 1,071,333 | 976,045
Equity in earnings | 230,176 | 277,108 | 268,291
Cumulative Translation Adjustment | 17,060 | (127,099) | 52,278
Capital decrease |  |  | (141,095)
Presentation as Assets held for sale | (1,210,041) |  |
Shares repurchase | (47,006) |  |
Dividends/Interest on equity | (50,959) | (160,572) | (84,186)
Balance at end of year |  | 1,060,770 | 1,071,333
Investments in Special Steel |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Balance at beginning of year | 256,813 | 251,668 | 231,152
Equity in earnings | 10,582 | 9,243 | 28,831
Cumulative Translation Adjustment | 1,127 | (414) | 710
Dividends/Interest on equity |  | (3,684) | (9,025)
Balance at end of year | 268,522 | 256,813 | 251,668
Other investments |  |  |
INVESTMENTS IN ASSOCIATES AND JOINT VENTURES |  |  |
Balance at beginning of year | 150,698 | 146,499 | 156,093
Equity in earnings | (4,506) | (18,961) | (13,912)
Cumulative Translation Adjustment | 15,197 | (1,284) | (1,415)
Capital increase | 524,185 | 35,001 | 27,500
Conversion of intercompany loan into equity interest | 141,070 |  |
Negative goodwill in acquisition of equity interest | 11,195 |  |
Dividends/Interest on equity | (14,318) | (10,557) | (21,767)
Balance at end of year | R$ 823,521 | R$ 150,698 | R$ 146,499

X
- Definition The decrease in investments accounted for using equity method attributable to a decrease in capital investment. + References No definition available. + Details
Name: | ggb_DecreaseInInvestmentsAccountedForUsingEquityMethodDecreaseInCapitalInvestment
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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. + Details
Name: | ggb_DisclosureOfJointVenturesAndAssociatesLineItems
Namespace Prefix: | ggb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in equity resulting from the acquisition of goodwill from equity interest. + References No definition available. + Details
Name: | ggb_IncreaseDecreaseInAcquisitionOfGoodwillInEquityInterest
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in investments accounted for using equity method attributable to the entity's share of the profit (loss) of associates and joint ventures recognized in cumulative translation. + References No definition available. + Details
Name: | ggb_IncreaseDecreaseInCumulativeTranslationAdjustments
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in investments accounted for using equity method attributable to the entity's share of the profit (loss) of associates and joint ventures recognized in profit (loss). + References No definition available. + Details
Name: | ggb_IncreaseDecreaseInInvestmentsAccountedForUsingEquityMethodShareOfProfitLossFromOfAssociatesAndJointVenturesRecognizedInProfitLoss
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase in investments accounted for using equity method attributable to a dividends and interest on equity. + References No definition available. + Details
Name: | ggb_IncreaseInInvestmentsAccountedForUsingEquityMethodDividendsAndInterestOnEquity
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase in investments accounted for using equity method attributable to an increase in capital investment. + References No definition available. + Details
Name: | ggb_IncreaseInInvestmentsAccountedForUsingEquityMethodIncreaseInCapitalInvestment
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase in investments accounted for using equity method attributable to a results in operations. + References No definition available. + Details
Name: | ggb_IncreaseInInvestmentsAccountedForUsingEquityMethodResultsInOperations
Namespace Prefix: | ggb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The decrease in investment property through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Investment property; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 76 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_76_c&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_DecreaseThroughClassifiedAsHeldForSaleInvestmentProperty
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in equity resulting from the conversion of convertible instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_IncreaseDecreaseThroughConversionOfConvertibleInstruments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in equity resulting from treasury share transactions. [Refer: Equity; Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_24_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_e&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_InvestmentAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_JointVenturesAxis=ggb_UbirataTecnologiaS.aMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=ggb_AddianteS.a.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=ggb_BrasilAoCuboS.a.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=ggb_NewaveEnergiaS.aMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ggb_InvestmentsInNorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ggb_InvestmentsInSouthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ggb_InvestmentsInSpecialSteelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ggb_OthersInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |