XML 233 R157.htm IDEA: XBRL DOCUMENT
v3.25.1

Pension plan obligations (Details 4) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 BRL (R$)
G1 Plan [Member] |
IfrsStatementLineItems [Line Items] |
Payment of benefits expected in 2025 | R$ 242,375
Payment of benefits expected in 2026 | 183,508
Payment of benefits expected in 2027 | 170,984
Payment of benefits expected in 2028 | 158,676
Payment of benefits expected in 2029 or after | 1,580,395
Payment of benefits expected | R$ 2,335,938
Duration | 11 years 3 months 7 days
G0 Plan [Member] |
IfrsStatementLineItems [Line Items] |
Payment of benefits expected in 2025 | R$ 202,302
Payment of benefits expected in 2026 | 183,508
Payment of benefits expected in 2027 | 170,985
Payment of benefits expected in 2028 | 158,676
Payment of benefits expected in 2029 or after | 1,215,674
Payment of benefits expected | R$ 1,931,145
Duration | 9 years 7 months 28 days

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- Definition The amount of expense from employee benefits (other than termination benefits), which are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services, that the entity does not separately disclose in the same statement or note. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 9 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_9&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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

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

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

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

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

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- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=sbs_G1PlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=sbs_G0PlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |