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v3.23.1

Post-employment benefits (Details 5) R$ in Millions | Dec. 31, 2022 BRL (R$)
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Actuarial Assumption Of Interest Rates [Member] | Defined Benefit Plans and Variable Contribution Plans [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | R$ 284
Decrease in assumptions | (311)
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 | (763)
Decrease in assumptions | 824
Actuarial Assumption Of Interest Rates [Member] | Other post employment benefits [member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 23
Decrease in assumptions | (25)
Actuarial Assumption Of Interest Rates [Member] | Other post employment benefits [member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (23)
Decrease in assumptions | 25
Actuarial assumption of mortality rates [member] | Defined Benefit Plans and Variable Contribution Plans [Member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 82
Decrease in assumptions | (87)
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 | (218)
Decrease in assumptions | 228
Actuarial assumption of mortality rates [member] | Other post employment benefits [member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | 10
Decrease in assumptions | (11)
Actuarial assumption of mortality rates [member] | Other post employment benefits [member] | Present value of defined benefit obligation [member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (10)
Decrease in assumptions | 11
Actuarial assumption of medical cost trend rates [member] | Other post employment benefits [member] | Stockholders Equity [Member] |
IfrsStatementLineItems [Line Items] |
Increase in assumptions | (56)
Decrease in assumptions | 48
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 | 56
Decrease in assumptions | R$ (48)

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 [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + 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 [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + Details
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Period Type: | instant

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
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Period Type: | duration

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- Details
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- Details
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Namespace Prefix: |
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Period Type: |

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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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Balance Type: |
Period Type: |