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Post-employment Benefits (Details 8) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Unified Plan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Fair value of the plan's assets, beginning balance | R$ 6,799,255 | R$ 7,568,268
Return estimated for assets | 743,845 | 837,120
Contributions and distributions | 29,808 | 26,661
Benefits paid | (523,792) | (511,621)
Actuarial gain (losses) | (423,739) | (1,121,173)
Fair value of the plan's assets, ending balance | 6,625,377 |
Plan I I I [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Fair value of the plan's assets, beginning balance | 3,347,204 | 3,629,780
Return estimated for assets | 274,486 | 133,837
Contributions and distributions | 151,606 | 136,730
Benefits paid | (264,096) | (233,908)
Actuarial gain (losses) | 22,758 | (319,235)
Fair value of the plan's assets, ending balance | 3,531,958 |
Assistance Plan [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Fair value of the plan's assets, beginning balance | 196,909 | 222,148
Return estimated for assets | 26,390 | 6,366
Contributions and distributions |  |
Benefits paid |  |
Actuarial gain (losses) | (57,616) | R$ (31,605)
Fair value of the plan's assets, ending balance | R$ 165,683 |

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- Definition The amount of current net defined benefit asset. [Refer: Net defined benefit asset] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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