XML 146 R135.htm IDEA: XBRL DOCUMENT v3.23.1

Labor and social obligations (Details Narrative) - Health Plan Medical Assistance [Member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
IfrsStatementLineItems [Line Items]
Average gross payroll	8.80%	8.50%
Wages and salaries	R$ 272,460	R$ 232,850

X

- Definition

A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 9
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_9&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_WagesAndSalaries
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount represents information related to average gross payroll.

+ References

No definition available.

+ Details

Name:	sbs_AverageGrossPayroll
Namespace Prefix:	sbs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=sbs_HealthPlanMedicalAssistanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: