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Post-employment benefits (Details 5) R$ in Millions | Dec. 31, 2024 BRL (R$)
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Actuarial Assumption Of Interest Rates [Member] | Defined Benefit Plans And Variable Contribution Plans [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | R$ 242
Decrease in assumptions | (264)
Actuarial Assumption Of Interest Rates [Member] | Defined Benefit Plans And Variable Contribution Plans [Member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (654)
Decrease in assumptions | 701
Actuarial Assumption Of Interest Rates [Member] | Other Post Employment Benefits [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 18
Decrease in assumptions | (20)
Actuarial Assumption Of Interest Rates [Member] | Other Post Employment Benefits [Member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (18)
Decrease in assumptions | 20
Actuarial assumption of mortality rates [member] | Defined Benefit Plans And Variable Contribution Plans [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 77
Decrease in assumptions | (81)
Actuarial assumption of mortality rates [member] | Defined Benefit Plans And Variable Contribution Plans [Member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (203)
Decrease in assumptions | 212
Actuarial assumption of mortality rates [member] | Other Post Employment Benefits [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 9
Decrease in assumptions | (10)
Actuarial assumption of mortality rates [member] | Other Post Employment Benefits [Member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (9)
Decrease in assumptions | 10
Actuarial assumption of medical cost trend rates [member] | Other Post Employment Benefits [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (44)
Decrease in assumptions | 38
Actuarial assumption of medical cost trend rates [member] | Other Post Employment Benefits [Member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 44
Decrease in assumptions | R$ (38)

X
- Definition The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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- References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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