XML 120 R109.htm IDEA: XBRL DOCUMENT v3.23.1

Intangible assets (Details 2) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
IfrsStatementLineItems [Line Items]
Intangible assets	R$ 2,977,445	R$ 3,164,860
Alto Tiete [Member]
IfrsStatementLineItems [Line Items]
Intangible assets	251,545	269,062
Sao Lourenco [Member]
IfrsStatementLineItems [Line Items]
Intangible assets	R$ 2,725,900	R$ 2,895,798

X

- Definition

The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2022-03-24
-Paragraph 118
-Subparagraph e
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_ii&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=sbs_SaoLourencoMember
Namespace Prefix:
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Balance Type:
Period Type: