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5. Risk Management (Details 4) - BRL (R$) R$ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | R$ 16,104,306 |
Accounts payables to suppliers and contractors | 465,993 |
Services payable | 454,022 | R$ 408,275
Public-Private Partnership - PPP | 6,803,620 |
Program contract commitments | 412,194 |
2019 |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 2,581,359 |
Accounts payables to suppliers and contractors | 465,993 |
Services payable | 454,022 |
Public-Private Partnership - PPP | 405,263 |
Program contract commitments | 244,446 |
2020 |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 3,073,006 |
Accounts payables to suppliers and contractors | 0 |
Services payable | 0 |
Public-Private Partnership - PPP | 377,196 |
Program contract commitments | 45,608 |
2021 |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 1,427,558 |
Accounts payables to suppliers and contractors | 0 |
Services payable | 0 |
Public-Private Partnership - PPP | 377,196 |
Program contract commitments | 45,741 |
2022 |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 1,468,221 |
Accounts payables to suppliers and contractors | 0 |
Services payable | 0 |
Public-Private Partnership - PPP | 377,196 |
Program contract commitments | 30,991 |
2023 |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 1,189,927 |
Accounts payables to suppliers and contractors | 0 |
Services payable | 0 |
Public-Private Partnership - PPP | 377,196 |
Program contract commitments | 30,991 |
2024 onwards |  |
SummaryOfRiskManagementLineItems [Line Items] |  |
Borrowings and financing | 6,364,235 |
Accounts payables to suppliers and contractors | 0 |
Services payable | 0 |
Public-Private Partnership - PPP | 4,889,573 |
Program contract commitments | R$ 14,417 |

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- Definition Public-Private Partnerships, or &amp;#8220;PPPs&amp;#8221;, are long-term contracts between private parties and government entities, for providing a public asset or service, in which the private parties bears significant risk and management responsibility, and remuneration is linked to performance. PPPs are regulated by the State of S&amp;#227;o Paulo through Law No. 11,688/2004, which was enacted on May 19, 2004. PPPs may be used for: (i) implantation, expansion, improvement, reform, maintenance or management of public infrastructure; (ii) provision of public services; and (iii) exploitation of public assets and non material rights belonging to the State. + References No definition available. + Details
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