XML 177 R101.htm IDEA: XBRL DOCUMENT v3.25.1

Restricted cash (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Restricted cash	R$ 37,715	R$ 54,944
Agreementwiththe Sao Paulo Municipal Government [Member]
IfrsStatementLineItems [Line Items]
Restricted cash	27,502	47,749
Agreementwiththe Sao Paulo Municipal Government 1 [Member]
IfrsStatementLineItems [Line Items]
Restricted cash	4,544
Brazilian Federal Savings Bank Escrow Deposites [Member]
IfrsStatementLineItems [Line Items]
Restricted cash	235	365
Other [Member]
IfrsStatementLineItems [Line Items]
Restricted cash	R$ 5,434	R$ 6,830

X

- Definition

The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	sbs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=sbs_AgreementwiththeSaoPauloMunicipalGovernmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=sbs_AgreementwiththeSaoPauloMunicipalGovernment1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=sbs_BrazilianFederalSavingsBankEscrowDepositesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=sbs_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: