Profit before income tax and CESE Profit before income tax and CESE Profit before income tax and CESE Profit loss before financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) Profit loss before financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) Fair value reserve (cash flow hedge) - joint ventures and associates Fair value reserve (cash flow hedge) - joint ventures and associates Debtors and other assets from commercial activities - Non current Debtors and other assets from commercial activities - Non current Other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Non current tax assets Non current tax assets Interest and similar costs of loans from related parties including hedge derivatives Interest and similar costs of loans from related parties including hedge derivatives Income tax expense and extraordinary contribution to the energy sector (CESE) Income tax expense and extraordinary contribution to the energy sector (CESE) Income tax expense and extraordinary contribution to the energy sector (CESE) Cost of energy sales and other Cost of energy sales and other Cost of energy sales and other Outflows of cash from investing activities [abstract] Outflows of cash from investing activities [abstract] Dividends recognised as distributions to non-controlling interests Profit before income tax and CESE [abstract] Profit before income tax and CESE [abstract] Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss Interest and similar costs relating to loans from non-controlling interests Interest and similar costs relating to loans from non-controlling interests Tax effect from the fair value reserve (cash flow hedge) - joint ventures and associates Tax effect from the fair value reserve (cash flow hedge) - joint ventures and associates Institutional partnerships in North America Institutional partnerships in North America Adjustments for Joint ventures and associates Adjustments for Joint ventures and associates Net of revenue and cost of energy sales and other Net of revenue and cost of energy sales and other Cash and cash equivalents reclassified as held for sale Cash and cash equivalents reclassified as held for sale Payments of lease liabilities, classified as financing activities Receipts/(payments) from institutional partnerships - North America Receipts/(payments) from institutional partnerships - North America Cash payments relating to changes in cash resulting from consolidation perimeter variations Cash payments relating to changes in cash resulting from consolidation perimeter variations Cash flows from (used in) financing activities Treasury stock sold/(purchased) Treasury stock sold/(purchased) Collateral deposits associated to financial debt - Current Collateral deposits associated to financial debt - Current Cash flows from (used in) investing activities Share capital increases/(decreases) (includes subscribed by non-controlling interests) Share capital increases/(decreases) (includes subscribed by non-controlling interests) Collateral deposits associated to financial debt - Non current Collateral deposits associated to financial debt - Non current Cash payments relating to property, plant and equipment and intangible assets Cash payments relating to property, plant and equipment and intangible assets Joint ventures and associates Joint ventures and associates Imposto sobre o rendimento e CESE Income tax and CESE Acquisition of remaining stake in wind farms in Europe Acquisition of remaining stake in wind farms in Europe Fair Value Reserve (Cash flow Hedge) - Subsidiaries Fair Value Reserve (Cash flow Hedge) - Subsidiaries Debtors and other assets from commercial activities - Current Debtors and other assets from commercial activities - Current (Gains) / Losses on disposal and scope effects except Asset Rotation (Gains) / Losses on disposal and scope effects except Asset Rotation Inflows of cash from investing activities Other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Receipts/(payments) relating to loans from non-controlling interests Receipts/(payments) relating to loans from non-controlling interests Cash flows from (used in) operating activities Provisions expenses Provisions expenses Reserves and retained earnings Reserves and retained earnings Receipts/(payments) relating to loans from related parties Receipts/(payments) relating to loans from related parties Extension line items 1 Extension line items 1 Receipts/(payments) relating to derivative financial instruments Receipts/(payments) relating to derivative financial instruments Tax assets - Current Tax assets - Current Tax expense (income) Extension hypercube 1 Extension hypercube 1 Dividends paid to non-controlling interests, classified as financing activities Trade payables and other liabilities from commercial activities - Non current Trade payables and other liabilities from commercial activities - Non current Profit loss before financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) [abstract] Profit loss before financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) [abstract] Net of revenue and cost of energy sales and other [abstract] Net of revenue and cost of energy sales and other [abstract] Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Profit loss before provisions, amortisation and impairment, financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) Profit loss before provisions, amortisation and impairment, financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) Fluxos de caixa de (utilizados em) unidades operacionais Intermediation of electricity system flows financing Intermediation of electricity system flows financing Resultado líquido antes de proveitos financeiros e custos financeiros, impostos sobre os lucros e contribuição extraordinária para o sector energético (CESE) [abstract] Profit loss before provisions, amortisation and impairment, financial income and financial expenses, income tax expense and extraordinary contribution to the energy sector (CESE) [abstract] Equity attributable to owners of parent [abstract] Equity attributable to owners of parent [abstract] Cash receipts relating to property, plant and equipment and intangible assets Cash receipts relating to property, plant and equipment and intangible assets Changes in working capital to personnel Changes in working capital to personnel Dividends recognised as distributions to owners of parent (Payments) relating to financial debt (include Collateral Deposits) (Payments) relating to financial debt (include Collateral Deposits) Tax liabilities - Current Tax liabilities - Current Other income, supplies and services, personnel costs and employee benefits, other expenses and impairment losses on trade receivables and debtors [abstract] Other income, supplies and services, personnel costs and employee benefits, other expenses and impairment losses on trade receivables and debtors [abstract] Changes in working capital for regulatory assets Changes in working capital for regulatory assets Cash flows from (used in) operations [Abstract] Cash flows from (used in) operations [abstract] Inflows of cash from investing activities [abstract] Inflows of cash from investing activities [abstract] Receipts relating to financial debt (include Collateral Deposits) Receipts relating to financial debt (include Collateral Deposits) Tax effect from the fair value reserve (cash flow Hedge) - Subsidiaries Tax effect from the fair value reserve (cash flow Hedge) - Subsidiaries Other income, supplies ans services, personnel costs and employee benefits, other expenses and impairment losses on trade receivables and debtors Other income, supplies and services, personnel costs and employee benefits, other expenses and impairment losses on trade receivables and debtors Other expenses, by nature Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities Dividends paid to equity holders of parent, classified as financing activities Cash receipts relating to changes in cash resulting from consolidation perimeter variations Cash receipts relating to changes in cash resulting from consolidation perimeter variations Income tax expense and extraordinary contribution to the energy sector (CESE) [abstract] Income tax expense and extraordinary contribution to the energy sector (CESE) [abstract] Receipts/(payments) related with transactions with non-controlling interest without change of control Receipts/(payments) related with transactions with non-controlling interest without change of control Extraordinary contribution to the energy sector (CESE) Extraordinary contribution to the energy sector (CESE) Trade payables and other liabilities from commercial activities - Current Trade payables and other liabilities from commercial activities - Current Increase (decrease) in cash and cash equivalents before effect of exchange rate changes Interest and similar costs of financial debt including hedge derivatives Interest and similar costs of financial debt including hedge derivatives Services expense Other reserves and retained earnings [Member] Other reserves and retained earnings [member]