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Contract assets (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |
Contract assets, beginning | R$ 7,672,679 |
Contract assets, ending | 7,605,061 | R$ 7,672,679
Piped Gas Distribution Service Concession [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Contract assets, beginning | 30,032 | 29,815
Acquisitions | 25,510 | 13,955
Transfers to intangible assets | (11,503) | (13,738)
Reclassification | (44,039) |
Contract assets, ending |  | R$ 30,032

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Balance Type: | credit
Period Type: | duration

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- Definition The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 105 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_105&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 116 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_116_a&doctype=Standard -URIDate 2023-03-23 + Details
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Balance Type: | debit
Period Type: | instant

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- Definition The amount of financial assets reclassified into the loans and receivables category. [Refer: Loans and receivables; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 12 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_12&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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