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Post-Employment Obligations - Additional Information (Details) R$ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 BRL (R$) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 BRL (R$) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Apr. 27, 2021 BRL (R$)
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Remuneratory interest applicable on outstanding balance |  |  |  |  | 6.00% | 6.00% | 6.00% |
Deficit paid |  |  |  |  |  |  |  | R$ 160
Finance expenses and monetary updating on debt | R$ 20 |  | R$ 40 |  |  |  |  |
Expected contributions to pension plan for amortization of deficit | 186 |  |  |  |  |  |  |
Expected contributions to defined contribution plan | R$ 84 |  |  |  |  |  |  |
Funded Benefit Plan ('Plan A') [member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Benefit amount payable | $ |  | $ 521 |  | $ 545 |  |  |  |
Description of monthly amortizations | The monthly amortizations, calculated by the constant installments system (Price Table), will be paid up to 2031 for the 2015 and 2016 deficits, in the amount of R$344, and up to 2033 for the 2017 deficit, in the amount of R$177. | The monthly amortizations, calculated by the constant installments system (Price Table), will be paid up to 2031 for the 2015 and 2016 deficits, in the amount of R$344, and up to 2033 for the 2017 deficit, in the amount of R$177. |  |  |  |  |  |
Remuneratory interest applicable on outstanding balance | 6.00% | 6.00% |  |  |  |  |  |
Forluz Pension Fund [member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Obligation for past actuarial deficits relating to pension fund | R$ 90 |  | 251 |  |  |  |  |
Inflation index rate | 6.00% | 6.00% |  |  |  |  |  |
Health plan [member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Actuarial gain of reduction of liability |  |  | 60 |  |  |  |  |
Dental plan [member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Actuarial gain of reduction of liability |  |  | 1 |  |  |  |  |
Life Insurance [Member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Past service cost arising from cancellation of post-retirement obligation | R$ 591 |  | R$ 626 |  |  |  |  |

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- Definition Deficit Paid + References No definition available. + Details
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- Definition Expected contributions to be paid to defined contribution plan. + References No definition available. + Details
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- Definition Expected contributions to be paid to plan for amortization of deficit. + References No definition available. + Details
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- Definition Finance expenses and monetary updating on debt, defined benefit plans. + References No definition available. + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments that result in remeasurements of the net defined benefit liability (asset). Experience adjustments deal with the effects of differences between the previous actuarial assumptions and what has actually occurred. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 141 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The present value of the expected payments by a retirement benefit plan to existing and past employees, attributable to the service already rendered. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2023-01-01 -Paragraph 35 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2023-en-r&anchor=para_35_d&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of expense (income) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Post-employment benefit expense in profit or loss, defined benefit plans; Defined benefit plans [member]] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from past service cost] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 135 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_135_b&doctype=Standard -URIDate 2023-03-23 + Details
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