00000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 00000002 - Statement - Consolidated Statements of Financial Position link:presentationLink link:calculationLink link:definitionLink 00000003 - Statement - Consolidated Statements of Income link:presentationLink link:calculationLink link:definitionLink 00000004 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 00000005 - Statement - Consolidated Statement of Changes in Equity link:presentationLink link:calculationLink link:definitionLink 00000006 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 999014 - Disclosure - Operations link:presentationLink link:calculationLink link:definitionLink 999015 - Disclosure - Basis of preparation and presentation of the financial statements link:presentationLink link:calculationLink link:definitionLink 999016 - Disclosure - Summary of material accounting policy information link:presentationLink link:calculationLink link:definitionLink 999017 - Disclosure - Changes in accounting practices and disclosures link:presentationLink link:calculationLink link:definitionLink 999018 - Disclosure - Risk management link:presentationLink link:calculationLink link:definitionLink 999019 - Disclosure - Significant accounting estimates and judgments link:presentationLink link:calculationLink link:definitionLink 999020 - Disclosure - Cash and cash equivalents link:presentationLink link:calculationLink link:definitionLink 999021 - Disclosure - Financial investments link:presentationLink link:calculationLink link:definitionLink 999022 - Disclosure - Restricted cash link:presentationLink link:calculationLink link:definitionLink 999023 - Disclosure - Trade receivables link:presentationLink link:calculationLink link:definitionLink 999024 - Disclosure - Related-party balances and transactions link:presentationLink link:calculationLink link:definitionLink 999025 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 999026 - Disclosure - Contract assets and other concession assets link:presentationLink link:calculationLink link:definitionLink 999027 - Disclosure - Intangible assets link:presentationLink link:calculationLink link:definitionLink 999028 - Disclosure - Financial asset of the concession link:presentationLink link:calculationLink link:definitionLink 999029 - Disclosure - Property, plant, and equipment link:presentationLink link:calculationLink link:definitionLink 999030 - Disclosure - Borrowings and financing link:presentationLink link:calculationLink link:definitionLink 999031 - Disclosure - Financial instruments link:presentationLink link:calculationLink link:definitionLink 999032 - Disclosure - Derivative financial instruments and hedging transactions link:presentationLink link:calculationLink link:definitionLink 999033 - Disclosure - Taxes and Contributions link:presentationLink link:calculationLink link:definitionLink 999034 - Disclosure - Deferred PIS/Cofins taxes link:presentationLink link:calculationLink link:definitionLink 999035 - Disclosure - Deferred taxes and contributions link:presentationLink link:calculationLink link:definitionLink 999036 - Disclosure - Provisions link:presentationLink link:calculationLink link:definitionLink 999037 - Disclosure - Labor and social obligations link:presentationLink link:calculationLink link:definitionLink 999038 - Disclosure - Pension plan obligations link:presentationLink link:calculationLink link:definitionLink 999039 - Disclosure - Services payable link:presentationLink link:calculationLink link:definitionLink 999040 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 999041 - Disclosure - Earnings per share link:presentationLink link:calculationLink link:definitionLink 999042 - Disclosure - Operating segment information link:presentationLink link:calculationLink link:definitionLink 999043 - Disclosure - Operating revenue link:presentationLink link:calculationLink link:definitionLink 999044 - Disclosure - Operating costs and expenses link:presentationLink link:calculationLink link:definitionLink 999045 - Disclosure - Financial income/(expense), net link:presentationLink link:calculationLink link:definitionLink 999046 - Disclosure - Other operating income (expenses), net link:presentationLink link:calculationLink link:definitionLink 999047 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 999048 - Disclosure - Supplemental cash flow information link:presentationLink link:calculationLink link:definitionLink 999049 - Disclosure - Events after the reporting period link:presentationLink link:calculationLink link:definitionLink 999050 - Disclosure - Summary of material accounting policy information (Policies) link:presentationLink link:calculationLink link:definitionLink 999051 - Disclosure - Cash and cash equivalents (Policies) link:presentationLink link:calculationLink link:definitionLink 999052 - Disclosure - Financial investments (Policies) link:presentationLink link:calculationLink link:definitionLink 999053 - Disclosure - Trade receivables (Policies) link:presentationLink link:calculationLink link:definitionLink 999054 - Disclosure - Investments (Policies) link:presentationLink link:calculationLink link:definitionLink 999055 - Disclosure - Contract assets and other concession assets (Policies) link:presentationLink link:calculationLink link:definitionLink 999056 - Disclosure - Intangible assets (Policies) link:presentationLink link:calculationLink link:definitionLink 999057 - Disclosure - Financial asset of the concession (Policies) link:presentationLink link:calculationLink link:definitionLink 999058 - Disclosure - Property, plant, and equipment (Policies) link:presentationLink link:calculationLink link:definitionLink 999059 - Disclosure - Borrowings and financing (Policies) link:presentationLink link:calculationLink link:definitionLink 999060 - Disclosure - Financial instruments (Policies) link:presentationLink link:calculationLink link:definitionLink 999061 - Disclosure - Derivative financial instruments and hedging transactions (Policies) link:presentationLink link:calculationLink link:definitionLink 999062 - Disclosure - Deferred taxes and contributions (Policies) link:presentationLink link:calculationLink link:definitionLink 999063 - Disclosure - Provisions (Policies) link:presentationLink link:calculationLink link:definitionLink 999064 - Disclosure - Labor and social obligations (Policies) link:presentationLink link:calculationLink link:definitionLink 999065 - Disclosure - Pension plan obligations (Policies) link:presentationLink link:calculationLink link:definitionLink 999066 - Disclosure - Equity (Policies) link:presentationLink link:calculationLink link:definitionLink 999067 - Disclosure - Operating segment information (Policies) link:presentationLink link:calculationLink link:definitionLink 999068 - Disclosure - Operating revenue (Policies) link:presentationLink link:calculationLink link:definitionLink 999069 - Disclosure - Financial income/(expense), net (Policies) link:presentationLink link:calculationLink link:definitionLink 999070 - Disclosure - Changes in accounting practices and disclosures (Tables) link:presentationLink link:calculationLink link:definitionLink 999071 - Disclosure - Risk management (Tables) link:presentationLink link:calculationLink link:definitionLink 999072 - Disclosure - Cash and cash equivalents (Tables) link:presentationLink link:calculationLink link:definitionLink 999073 - Disclosure - Financial investments (Tables) link:presentationLink link:calculationLink link:definitionLink 999074 - Disclosure - Trade receivables (Tables) link:presentationLink link:calculationLink link:definitionLink 999075 - Disclosure - Related-party balances and transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 999076 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 999077 - Disclosure - Contract assets and other concession assets (Tables) link:presentationLink link:calculationLink link:definitionLink 999078 - Disclosure - Intangible assets (Tables) link:presentationLink link:calculationLink link:definitionLink 999079 - Disclosure - Financial asset of the concession (Tables) link:presentationLink link:calculationLink link:definitionLink 999080 - Disclosure - Property, plant, and equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 999081 - Disclosure - Borrowings and financing (Tables) link:presentationLink link:calculationLink link:definitionLink 999082 - Disclosure - Financial instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 999083 - Disclosure - Derivative financial instruments and hedging transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 999084 - Disclosure - Taxes and Contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 999085 - Disclosure - Deferred PIS/Cofins taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 999086 - Disclosure - Deferred taxes and contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 999087 - Disclosure - Provisions (Tables) link:presentationLink link:calculationLink link:definitionLink 999088 - Disclosure - Labor and social obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 999089 - Disclosure - Pension plan obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 999090 - Disclosure - Services payable (Tables) link:presentationLink link:calculationLink link:definitionLink 999091 - Disclosure - Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 999092 - Disclosure - Earnings per share (Tables) link:presentationLink link:calculationLink link:definitionLink 999093 - Disclosure - Operating segment information (Tables) link:presentationLink link:calculationLink link:definitionLink 999094 - Disclosure - Operating revenue (Tables) link:presentationLink link:calculationLink link:definitionLink 999095 - Disclosure - Operating costs and expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 999096 - Disclosure - Financial income/(expense), net (Tables) link:presentationLink link:calculationLink link:definitionLink 999097 - Disclosure - Other operating income (expenses), net (Tables) link:presentationLink link:calculationLink link:definitionLink 999098 - Disclosure - Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 999099 - Disclosure - Supplemental cash flow information (Tables) link:presentationLink link:calculationLink link:definitionLink 999100 - Disclosure - Changes in accounting practices and disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 999101 - Disclosure - Risk Management (Details) link:presentationLink link:calculationLink link:definitionLink 999102 - Disclosure - Risk Management (Details 1) link:presentationLink link:calculationLink link:definitionLink 999103 - Disclosure - Risk Management (Details 2) link:presentationLink link:calculationLink link:definitionLink 999104 - Disclosure - Risk Management (Details 3) link:presentationLink link:calculationLink link:definitionLink 999105 - Disclosure - Risk Management (Details 4) link:presentationLink link:calculationLink link:definitionLink 999106 - Disclosure - Risk Management (Details 5) link:presentationLink link:calculationLink link:definitionLink 999107 - Disclosure - Risk management (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999108 - Disclosure - Cash and cash equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 999109 - Disclosure - Cash and cash equivalents (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999110 - Disclosure - Financial investments (Details) link:presentationLink link:calculationLink link:definitionLink 999111 - Disclosure - Financial investments (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999112 - Disclosure - Restricted cash (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999113 - Disclosure - Trade receivables (Details) link:presentationLink link:calculationLink link:definitionLink 999114 - Disclosure - Trade receivables (Details 1) link:presentationLink link:calculationLink link:definitionLink 999115 - Disclosure - Trade receivables (Details 2) link:presentationLink link:calculationLink link:definitionLink 999116 - Disclosure - Trade receivables (Details 3) link:presentationLink link:calculationLink link:definitionLink 999117 - Disclosure - Trade receivables (Details 4) link:presentationLink link:calculationLink link:definitionLink 999118 - Disclosure - Trade receivables (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999119 - Disclosure - Related-Party Balances and Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 999120 - Disclosure - Related-Party Balances and Transactions (Details 1) link:presentationLink link:calculationLink link:definitionLink 999121 - Disclosure - Related-Party Balances and Transactions (Details 2) link:presentationLink link:calculationLink link:definitionLink 999122 - Disclosure - Related-party balances and transactions (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999123 - Disclosure - Investments (Details) link:presentationLink link:calculationLink link:definitionLink 999124 - Disclosure - Investments (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999125 - Disclosure - Contract assets and other concession assets (Details) link:presentationLink link:calculationLink link:definitionLink 999126 - Disclosure - Contract assets and other concession assets (Details 1) link:presentationLink link:calculationLink link:definitionLink 999127 - Disclosure - Contract assets and other concession assets (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999128 - Disclosure - Intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 999129 - Disclosure - Intangible assets (Details 1) link:presentationLink link:calculationLink link:definitionLink 999130 - Disclosure - Intangible assets (Details 2) link:presentationLink link:calculationLink link:definitionLink 999131 - Disclosure - Intangible assets (Details 3) link:presentationLink link:calculationLink link:definitionLink 999132 - Disclosure - Intangible assets (Details 4) link:presentationLink link:calculationLink link:definitionLink 999133 - Disclosure - Intangible assets (Details 5) link:presentationLink link:calculationLink link:definitionLink 999134 - Disclosure - Intangible assets (Details 6) link:presentationLink link:calculationLink link:definitionLink 999135 - Disclosure - Intangible assets (Details 7) link:presentationLink link:calculationLink link:definitionLink 999136 - Disclosure - Intangible assets (Details 8) link:presentationLink link:calculationLink link:definitionLink 999137 - Disclosure - Intangible assets (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999138 - Disclosure - Financial asset of the concession (Details) link:presentationLink link:calculationLink link:definitionLink 999139 - Disclosure - Financial asset of the concession (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999140 - Disclosure - Financial Asset (Indemnity) (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999141 - Disclosure - Property, plant, and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 999142 - Disclosure - Property, plant, and equipment (Details 1) link:presentationLink link:calculationLink link:definitionLink 999143 - Disclosure - Borrowings and financing (Details) link:presentationLink link:calculationLink link:definitionLink 999144 - Disclosure - Borrowings and financing (Details 1) link:presentationLink link:calculationLink link:definitionLink 999145 - Disclosure - Borrowings and financing (Details 2) link:presentationLink link:calculationLink link:definitionLink 999146 - Disclosure - Borrowings and financing (Details 3) link:presentationLink link:calculationLink link:definitionLink 999147 - Disclosure - Borrowings and financing (Details 4) link:presentationLink link:calculationLink link:definitionLink 999148 - Disclosure - Borrowings and financing (Details 5) link:presentationLink link:calculationLink link:definitionLink 999149 - Disclosure - Borrowings and financing (Details 6) link:presentationLink link:calculationLink link:definitionLink 999150 - Disclosure - Borrowings and financing (Details 7) link:presentationLink link:calculationLink link:definitionLink 999151 - Disclosure - Borrowings and financing (Details 8) link:presentationLink link:calculationLink link:definitionLink 999152 - Disclosure - Borrowings and financing (Details 9) link:presentationLink link:calculationLink link:definitionLink 999153 - Disclosure - Borrowings and financing (Details 10) link:presentationLink link:calculationLink link:definitionLink 999154 - Disclosure - Borrowings and financing (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999155 - Disclosure - Financial instruments (Details) link:presentationLink link:calculationLink link:definitionLink 999156 - Disclosure - Financial instruments (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999157 - Disclosure - Derivative financial instruments and hedging transactions (Details) link:presentationLink link:calculationLink link:definitionLink 999158 - Disclosure - Derivative financial instruments and hedging transactions (Details 1) link:presentationLink link:calculationLink link:definitionLink 999159 - Disclosure - Derivative financial instruments and hedging transactions (Details 2) link:presentationLink link:calculationLink link:definitionLink 999160 - Disclosure - Derivative financial instruments and hedging transactions (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999161 - Disclosure - Taxes and contributions (Details) link:presentationLink link:calculationLink link:definitionLink 999162 - Disclosure - Taxes and contributions (Details 1) link:presentationLink link:calculationLink link:definitionLink 999163 - Disclosure - Deferred PIS/Cofins taxes (Details) link:presentationLink link:calculationLink link:definitionLink 999164 - Disclosure - Deferred taxes and contributions (Details) link:presentationLink link:calculationLink link:definitionLink 999165 - Disclosure - Deferred taxes and contributions (Details 1) link:presentationLink link:calculationLink link:definitionLink 999166 - Disclosure - Deferred taxes and contributions (Details 2) link:presentationLink link:calculationLink link:definitionLink 999167 - Disclosure - Deferred taxes and contributions (Details 3) link:presentationLink link:calculationLink link:definitionLink 999168 - Disclosure - Deferred taxes and contributions (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999169 - Disclosure - Provisions (Details) link:presentationLink link:calculationLink link:definitionLink 999170 - Disclosure - Provisions (Details 1) link:presentationLink link:calculationLink link:definitionLink 999171 - Disclosure - Provisions (Details 2) link:presentationLink link:calculationLink link:definitionLink 999172 - Disclosure - Provisions (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999173 - Disclosure - Labor and social obligations (Details) link:presentationLink link:calculationLink link:definitionLink 999174 - Disclosure - Labor and social obligations (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999175 - Disclosure - Pension plan obligations (Details) link:presentationLink link:calculationLink link:definitionLink 999176 - Disclosure - Pension plan obligations (Details 1) link:presentationLink link:calculationLink link:definitionLink 999177 - Disclosure - Pension plan obligations (Details 2) link:presentationLink link:calculationLink link:definitionLink 999178 - Disclosure - Pension plan obligations (Details 3) link:presentationLink link:calculationLink link:definitionLink 999179 - Disclosure - Pension plan obligations (Details 4) link:presentationLink link:calculationLink link:definitionLink 999180 - Disclosure - Pension plan obligations (Details 5) link:presentationLink link:calculationLink link:definitionLink 999181 - Disclosure - Pension plan obligations (Details 6) link:presentationLink link:calculationLink link:definitionLink 999182 - Disclosure - Pension plan obligations (Details 7) link:presentationLink link:calculationLink link:definitionLink 999183 - Disclosure - Pension plan obligations (Details 8) link:presentationLink link:calculationLink link:definitionLink 999184 - Disclosure - Pension plan obligations (Details 10) link:presentationLink link:calculationLink link:definitionLink 999185 - Disclosure - Pension plan obligations (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999186 - Disclosure - Services payable (Details) link:presentationLink link:calculationLink link:definitionLink 999187 - Disclosure - Services payable (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999188 - Disclosure - Equity (Details) link:presentationLink link:calculationLink link:definitionLink 999189 - Disclosure - Equity (Details 1) link:presentationLink link:calculationLink link:definitionLink 999190 - Disclosure - Equity (Details 2) link:presentationLink link:calculationLink link:definitionLink 999191 - Disclosure - Equity (Details 3) link:presentationLink link:calculationLink link:definitionLink 999192 - Disclosure - Equity (Details 4) link:presentationLink link:calculationLink link:definitionLink 999193 - Disclosure - Equity (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999194 - Disclosure - Earnings per share (Details) link:presentationLink link:calculationLink link:definitionLink 999195 - Disclosure - Operating segment information (Details) link:presentationLink link:calculationLink link:definitionLink 999196 - Disclosure - Operating revenue (Details) link:presentationLink link:calculationLink link:definitionLink 999197 - Disclosure - Operating revenue (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999198 - Disclosure - Operating costs and expenses (Details) link:presentationLink link:calculationLink link:definitionLink 999199 - Disclosure - Financial Income, net (Details) link:presentationLink link:calculationLink link:definitionLink 999200 - Disclosure - Other operating income (expenses), net (Details) link:presentationLink link:calculationLink link:definitionLink 999201 - Disclosure - Other operating income (expenses), net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999202 - Disclosure - Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 999203 - Disclosure - Supplemental cash flow information (Details) link:presentationLink link:calculationLink link:definitionLink 999204 - Disclosure - Events after the reporting period (Details Narrative) link:presentationLink link:calculationLink link:definitionLink