XML 134 R123.htm IDEA: XBRL DOCUMENT
v3.19.1

20. Provisions (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | R$ 1,078,204 | R$ 1,173,075 | R$ 1,082,214
Additional provisions | 162,859 | 128,447 | 245,403
Interest and inflation adjustment | 124,057 | 148,336 | 199,117
Use of the accrual | (244,077) | (250,862) | (147,524)
Amounts not used (reversal) | (228,181) | (120,792) | (206,135)
Provisions, ending | 892,862 | 1,078,204 | 1,173,075
Customer claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 438,619 | 572,210 | 561,061
Additional provisions | 29,732 | 26,642 | 109,540
Interest and inflation adjustment | 40,749 | 44,805 | 95,459
Use of the accrual | (141,421) | (138,466) | (87,334)
Amounts not used (reversal) | (77,030) | (66,572) | (106,516)
Provisions, ending | 290,649 | 438,619 | 572,210
Supplier claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 332,037 | 332,667 | 296,660
Additional provisions | 36,100 | 23,017 | 12,885
Interest and inflation adjustment | 21,161 | 36,888 | 43,679
Use of the accrual | (308,253) | (39,433) | (20,018)
Amounts not used (reversal) | (13,060) | (21,102) | (539)
Provisions, ending | 67,985 | 332,037 | 332,667
Other civil claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 114,544 | 131,286 | 124,833
Additional provisions | 22,578 | 13,517 | 20,638
Interest and inflation adjustment | 12,939 | 12,057 | 19,940
Use of the accrual | (16,146) | (19,975) | (8,080)
Amounts not used (reversal) | (35,613) | (22,341) | (26,045)
Provisions, ending | 98,302 | 114,544 | 131,286
Tax claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 77,100 | 69,898 | 62,812
Additional provisions | 10,763 | 6,877 | 20,716
Interest and inflation adjustment | 4,157 | 7,392 | 14,265
Use of the accrual | (2,490) | (259) | (4,621)
Amounts not used (reversal) | (26,195) | (6,808) | (23,274)
Provisions, ending | 63,335 | 77,100 | 69,898
Labor claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 299,842 | 285,413 | 283,991
Additional provisions | 83,499 | 55,106 | 51,408
Interest and inflation adjustment | 32,290 | 38,861 | 29,419
Use of the accrual | (44,900) | (43,498) | (37,072)
Amounts not used (reversal) | (67,796) | (36,040) | (42,333)
Provisions, ending | 302,935 | 299,842 | 285,413
Environmental claims |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 160,446 | 150,084 | 83,520
Additional provisions | 33,392 | 32,377 | 68,485
Interest and inflation adjustment | 18,294 | 16,156 | 23,508
Use of the accrual | (115) | (24,585) | 0
Amounts not used (reversal) | (41,598) | (13,586) | (25,429)
Provisions, ending | 170,419 | 160,446 | 150,084
Subtotal |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | 1,422,588 | 1,541,558 | 1,412,877
Additional provisions | 216,064 | 157,536 | 283,672
Interest and inflation adjustment | 129,590 | 156,159 | 226,270
Use of the accrual | (513,325) | (266,216) | (157,125)
Amounts not used (reversal) | (261,292) | (166,449) | (224,136)
Provisions, ending | 993,625 | 1,422,588 | 1,541,558
Escrow deposits |  |  |
SummaryOfProvisionsLineItems [Line Items] |  |  |
Provisions, beginning | (344,384) | (368,483) | (330,663)
Additional provisions | (53,205) | (29,089) | (38,269)
Interest and inflation adjustment | (5,533) | (7,823) | (27,153)
Use of the accrual | 269,248 | 15,354 | 9,601
Amounts not used (reversal) | 33,111 | 45,657 | 18,001
Provisions, ending | R$ (100,763) | R$ (344,384) | R$ (368,483)

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 additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_AdditionalProvisionsOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_e&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount used (ie incurrent and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_c&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_ProvisionUsedOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of liabilities of uncertain timing or amount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_l&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_Provisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84_d&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_UnusedProvisionReversedOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=SBS_SubtotalClaimsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=SBS_EscrowDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |