XML 149 R140.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Events after the reporting period (Details Narrative) - BRL (R$) R$ in Thousands | Apr. 08, 2024 | Jun. 03, 2024 | Jun. 01, 2024 | Apr. 17, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | --- | --- | ---
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Tariffs adustments | 6.4469% |  |  |  |  |  |  |
Foreign currency of existing debts |  |  |  | R$ 534,000 |  |  |  |
Net book value of Igarapava related assets |  |  | R$ 11,400 |  | R$ 44,459,122 | R$ 44,012,858 | R$ 39,744,201 | R$ 39,320,871
Regulator amount |  |  |  |  | 57,200 |  |  |
Payments to receive warrants |  |  |  |  | 3,064,500 |  |  |
Payments to receive warrants historical value |  |  |  |  | 2,373,800 |  |  |
Payments to receive warrants net |  |  |  |  | 1,873,200 |  |  |
Sao Paulo [Member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Payments to receive warrants |  |  |  |  | R$ 3,064,500 |  |  |
Sabesp Share Capital [Member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Share capital percentage |  | 18.00% |  |  |  |  |  |
Investor Share Capital [Member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Share capital percentage |  | 15.00% |  |  |  |  |  |
Conselho Diretor Do Programa Estadual [Member] |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |
Share capital percentage |  | 10.00% |  |  |  |  |  |

X
- Definition The amount of net debt of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_NetDebt
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from adjustments for the current tax of prior periods. [Refer: Average effective tax rate; Applicable tax rate; Adjustments for current tax of prior periods] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sbs_FinancialAssetsIndemnity
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_IfrsStatementLineItems
Namespace Prefix: | sbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sbs_IntangibleAssetsOtherThanGoodwill1
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_PaymentsToReceiveWarrants
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_PaymentsToReceiveWarrantsHistoricalValue
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_PaymentsToReceiveWarrantsNet
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | sbs_PercentageOfEntitysCapital
Namespace Prefix: | sbs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | sbs_LocationOneAxis=sbs_SaoPauloMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=sbs_SabespShareCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=sbs_InvestorShareCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=sbs_ConselhoDiretorDoProgramaEstadualMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |