XML 127 R116.htm IDEA: XBRL DOCUMENT v3.8.0.1

19. Provisions (Details 2) - BRL (R$) R$ in Thousands	Dec. 31, 2017	Dec. 31, 2016
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	R$ 8,231,000	R$ 7,432,100
Customer claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	219,900	306,500
Supplier claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	1,430,600	1,422,000
Other civil claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	733,100	709,400
Tax claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	1,291,000	1,143,000
Labor claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	677,400	533,600
Environmental claims
SummaryOfProvisionsLineItems [Line Items]
Significant contingent liabilities	R$ 3,879,000	R$ 3,317,600

X

- References

No definition available.

+ Details

Name:	SBS_SummaryOfProvisionsLineItems
Namespace Prefix:	SBS_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of contingent liabilities incurred relating to the entity's interests in associates. [Refer: Associates [member]; Contingent liabilities [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2017-01-01
-Paragraph 23
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_23_b&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ContingentLiabilitiesIncurredInRelationToInterestsInAssociates
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_CustomerClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_SupplierClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_OtherCivilClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_TaxClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_LaborClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=SBS_EnvironmentalClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: