Gains (losses) on change in value of foreign currency basis spreads, net of tax Adjustments for decrease (increase) in other assets Adjustments for increase (decrease) in other liabilities Services expense Adjustments for provisions Utilization of provisions Payments from changes in ownership interests in subsidiaries that do not result in loss of control Line items not dimensionally qualified placeholder Disclosure of general information about financial statements [text block] Disclosure of business combinations [text block] Disclosure of associates [text block] Disclosure of revenue from contracts with customers [text block] Disclosure of other provisions, contingent liabilities and contingent assets [text block] Disclosure of composition of group [text block] Gains (losses) on change in value of forward elements of forward contracts, net of tax Gains (losses) on change in value of time value of options, net of tax Notes, accounting policies and mandatory tags – this item MUST be used as a starting point for markups of disclosures in the notes to the financial statements Name of reporting entity or other means of identification Explanation of change in name of reporting entity or other means of identification from end of preceding reporting period Domicile of entity Legal form of entity Country of incorporation Address of entity's registered office Principal place of business Description of nature of entity's operations and principal activities Name of parent entity Name of ultimate parent of group Profit (loss) [abstract] Reclassification From Finance Income To Revenue It represents the amount of reclassification from finance income to revenue. Statement of financial position [abstract] Property, plant and equipment Property, plant and equipment Investment property Goodwill Other current assets Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Other reserves Other non-current liabilities Other current financial liabilities Other current liabilities Statement of changes in equity [abstract] Statement of changes in equity [table] Components of equity [axis] Statement of changes in equity [line items] Coupon Paid Hybrid Bonds Coupon Paid Hybrid Bonds It represents coupon paid to holders of hybrid bonds. Statement of cash flows [abstract] Short-term investments, classified as cash equivalents Short-term investments, classified as cash equivalents Cash and cash equivalents classified as part of disposal group held for sale Cash and cash equivalents classified as part of disposal group held for sale Of which with related parties Related parties [member] [Subtotal] Revenue Costs Expenses by nature [abstract] Personnel expenses Employee benefits expense Depreciation, amortization and other impairment losses Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss Capitalized costs Other work performed by entity and capitalised [Subtotal] Operating expense Other financial income Finance income Financial expense from derivatives It represents charges realized in the period on financial derivatives and adjustments to unrealized prior-year financial charges from derivatives for positions closed during the year. Other financial expense Finance costs Share of profit/(loss) of equity-accounted investments Share of profit (loss) of associates and joint ventures accounted for using equity method Income taxes Tax expense (income) Profit/(Loss) from discontinued operations Profit (loss) from discontinued operations Attributable to owners of the Parent Profit (loss), attributable to owners of parent Attributable to non-controlling interests Profit (loss), attributable to non-controlling interests Form and content of the consolidated financial statements Disclosure of basis of preparation of financial statements [text block] New and amended standards and interpretations Disclosure of changes in accounting policies [text block] Argentina - Hyperinflationary economy: impact of the application of IAS 29 Disclosure of hyperinflationary reporting [text block] Income taxes Disclosure of income tax [text block] Basic and diluted earnings per share Disclosure of earnings per share [text block] Property, plant and equipment Disclosure of property, plant and equipment [text block] Disclosure of intangible assets [text block] Intangible assets Other current assets Disclosure of other current assets [text block] Inventories Disclosure of inventories [text block] Cash and cash equivalents Disclosure of cash and cash equivalents [text block] Assets and liabilities included in disposal groups classified as held for sale Disclosure of non-current assets or disposal groups classified as held for sale [text block] Borrowings Disclosure of borrowings [text block] Employee benefits Disclosure of employee benefits [text block] Provisions for risks and charges Disclosure of provisions [text block] Derivatives and hedge accounting Disclosure of hedge accounting [text block] Assets and liabilities measured at fair value Disclosure of fair value measurement [text block] Related parties Disclosure of related party [text block] Contractual commitments and guarantees Disclosure of commitments [text block] Future accounting standards Explanation of new standards or interpretations not applied Goodwill Disclosure of goodwill [text block] Deferred tax assets and liabilities Disclosure of deferred taxes [text block] Equity-accounted investments Disclosure of investments accounted for using equity method [text block] Derivatives Disclosure of derivative financial instruments [text block] Other non-current liabilities Disclosure of financial liabilities [text block] Other current liabilities Disclosure of other non-current liabilities [text block] Events after the reporting period Disclosure of events after reporting period [text block] Share-based payments Disclosure of share-based payment arrangements [text block] Offsetting financial assets and financial liabilities Disclosure of offsetting of financial assets and financial liabilities [text block] Risk management Disclosure of financial risk management [text block] Trade payables Disclosure of trade and other payables [text block] Investment property Disclosure of investment property [text block] Leases Disclosure of leases [text block] Infrastructure within the scope of “IFRIC 12 - Service concession arrangements” Disclosure of service concession arrangements [text block] Attributable to: Comprehensive income attributable to [abstract] Change in fair value of equity investments in other companies Other comprehensive income, net of tax, gains (losses) from investments in equity instruments Remeasurement of assets for employee benefits Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Change in translation reserve Gains (losses) on exchange differences on translation, net of tax Change in the fair value of financial assets at FVOCI Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax Statement of comprehensive income [abstract] Impact of exchange rate fluctuations on cash and cash equivalents (D) Effect of exchange rate changes on cash and cash equivalents Cash flows from/(used in) financing activities (C) Cash flows from (used in) financing activities Adjustments for: Adjustments to reconcile profit (loss) [abstract] Depreciation, amortization and other impairment losses Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss Changes in net working capital: Changes in net working capital: Increase (decrease) in working capital Increase (decrease) in working capital Accruals to provisions It represents the accruals to provisions. Adjustments For Accruals To Provisions Utilization of provisions Adjustments For Utilization From Provisions It represents the utilization to provisions. Interest income and other financial income collected Finance income received, classified as operating activities Interest expense and other financial expense paid Finance costs paid, classified as operating activities Net (income)/expense from measurement of commodities Other adjustments for non-cash items Income taxes paid Income taxes paid (refund), classified as operating activities Net capital gains Adjustments for losses (gains) on disposal of non-current assets Cash flows from operating activities (A) Cash flows from (used in) operating activities Disposals of entities (or business units) less cash and cash equivalents sold Cash flows from losing control of subsidiaries or other businesses, classified as investing activities (Increase)/Decrease in other investing activities Other inflows (outflows) of cash, classified as investing activities Cash flows used in investing activities (B) Cash flows from (used in) investing activities New long-term borrowings Proceeds from borrowings, classified as financing activities Repayments of borrowings Repayments of borrowings, classified as financing activities Other changes in net financial debit Other inflows (outflows) of cash, classified as financing activities Issues/(Redemptions) of hybrid bonds Proceeds from issuing other equity instruments Dividends and interim dividends paid Dividends paid, classified as financing activities Entity's total for related parties [member] Categories of related parties [axis] Revenue Revenue [abstract] Assets Assets [abstract] Non-current assets Non-current assets [abstract] Current assets Current assets [abstract] TOTAL ASSETS Assets Intangible assets Intangible assets other than goodwill Equity-accounted investments Investments accounted for using equity method Inventories Current inventories Trade receivables Current trade receivables Tax assets Current tax assets, current [Total] Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners Equity attributable to owners of the Parent Equity [abstract] LIABILITIES AND EQUITY Equity and liabilities [abstract] Share capital Issued capital Treasury share reserve Treasury shares [Total] Equity attributable to owners of parent Non-current liabilities Non-current liabilities [abstract] Long-term borrowings Non-current portion of non-current borrowings Provisions for risks and charges (non-current portion) Other non-current provisions Non-current financial derivative liabilities Non-current derivative financial liabilities [Total] Non-current liabilities Current liabilities Current liabilities [abstract] Short-term borrowings Current borrowings Current portion of long-term borrowings Current portion of non-current borrowings TOTAL LIABILITIES AND EQUITY Equity and liabilities Total liabilities Liabilities [Total] Current liabilities other than liabilities included in disposal groups classified as held for sale Provisions for risks and charges (current portion) Other current provisions Income tax liabilities Current tax liabilities, current Other non-current financial liabilities Share capital Issued capital [member] Share premium reserve Share premium [member] Reserve for equity instruments - perpetual hybrid bonds It represents the issue of a perpetual non-convertible subordinated hybrid bond. Equity Instruments Perpetual Hybrid Bonds [Member] Legal reserve Statutory reserve [member] Other reserves Other reserves [member] Translation reserve Reserve of exchange differences on translation [member] Hedging reserve Reserve of cash flow hedges [member] Hedging costs reserve Reserve of change in value of foreign currency basis spreads [member] Reserve from measurement of financial instruments at FVOCI Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member] Actuarial reserve Reserve of remeasurements of defined benefit plans [member] Reserve from disposal of equity interests without loss of control Reserve From Disposal Of Equity Interests Without Loss Of Control [Member] It represents the gain or the capital loss recognized as a result of the sales of minority interest in companies already controlled. Retained earnings Retained earnings [member] Equity attributable to owners of the Parent Equity attributable to owners of parent [member] Total equity Equity [member] Distribution of dividends Distribution of dividends Dividends recognised as distributions to owners Purchase of treasury shares Purchase of treasury shares At December 31 Total equity At December 31 Equity Change in the scope of consolidation Increase (decrease) through change in equity of subsidiaries, equity Transactions in non-controlling interests Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity Reclassifications Increase (decrease) in equity Reserve for share-based payments (LTI bonus) Increase (decrease) through share-based payment transactions, equity Equity instruments - hybrid perpetual bonds Hybrid Bonds Issued It represents non-convertible bond in the form of a subordinated perpetual hybrid bond. Government grants - Disclosure pursuant to Article 1, paragraphs 125-129, of Law 124/2017 Disclosure of government grants [text block] Other income Revenue from sales and services (1)(2) Revenue From Sales And Services It represents revenue arising from sales of goods, providing services, constructoring, and other activities occured in ordinary activities. Electricity, gas and fuel (1) Raw materials and consumables used Net impairment/(reversals) on trade receivables and other receivables Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables Other operating costs Other expenses, by nature Net results from commodity contracts (1) Net Results From Commodity Contracts It represents net results from commodity contracts. Operating profit/(loss) (2) Profit (loss) from operating activities Services and other materials (1) Services and other materials It represents costs for services related to the core business and other materials. Financial income from derivatives It represents income realized in the period on financial derivatives and adjustments to unrealized prior-year financial incomes from derivatives for positions closed during the year. Net income/(expense) from hyperinflation Gains (losses) on net monetary position Gains (losses) on net monetary position Profit/(Loss) from continuing operations Profit (loss) from continuing operations Earnings per share [abstract] Earnings (Loss) per share: Basic earnings per share [abstract] Basic earnings (Loss) per share Basic earnings (Loss) per share Basic earnings (loss) per share Basic earnings (loss) per share from continuing operations (CU) Basic earnings (loss) per share from continuing operations Basic earnings (loss) per share from discontinued operations Basic earnings (loss) per share from discontinued operations (CU) Diluted earnings per share [abstract] Diluted earnings (loss) per share Diluted earnings (loss) per share Diluted earnings (loss) per share Diluted earnings (loss) per share from continuing operations (CU) Diluted earnings (loss) per share from continuing operations Diluted earnings (loss) per share from discontinued operations Diluted earnings (loss) per share from discontinued operations (CU) Other comprehensive income/(expense) that may be subsequently reclassified to profit or loss (net of taxes) Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Effective portion of change in the fair value of cash flow hedges Gains (losses) on cash flow hedges, net of tax Share of the other comprehensive expense of equity-accounted investments Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax Pre-tax profit/(loss) Profit (loss) before tax Pre-tax profit Net impairment/(reversals) of trade receivables and financial asset Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, trade and other receivables - inventories Adjustments for decrease (increase) in inventories - trade receivables Adjustments for decrease (increase) in trade accounts receivable - trade payables Adjustments for increase (decrease) in trade accounts payable - other contract assets Adjustments For Decrease Increase In Other Contract Assets It represents the decrease and increase of contract assets within 12 months. Cash and cash equivalents at the beginning of the year (2) Cash and cash equivalents at the end of the year (3) Cash and cash equivalents if different from statement of financial position It represents change in fair value of hedging costs. Change in fair value of hedging costs Treasury shares [member] Treasury share reserve Reserve From Equity Investments Accounted For Using Equity Method [Member] Reserve from equity-accounted investments It represents the share of comprehensive income to be recognized directly in equity of companies accounted for using the equity method. Reserve from acquisitions of non-controlling interests Reserve From Acquisitions Of Non Controlling Interests [Member] It represents the difference between acquisition prices and the carrying value of the equity acquired following the acquisition from third parties of further interests in companies already controlled. Non-controlling interests Non-controlling interests [member] Reclassification for curtailment of defined benefit plans (IAS 19) following signing of 5th Endesa Collective Bargaining Agreement Increase (decrease) through other changes, equity Monetary restatement (IAS 29) Monetary Revaluation (IAS 29) It represents the cumulative hyperinflationary effects for the period. Comprehensive income/(expense) for the year Comprehensive income - owners of the Parent Comprehensive income, attributable to owners of parent - non-controlling interests Comprehensive income, attributable to non-controlling interests Deferred tax assets Non-current financial derivative assets Non-current derivative financial assets Non-current contract assets Other non-current financial assets Other non-current assets Current contract assets Current financial derivative assets Current derivative financial assets Non-current assets or disposal groups classified as held for sale Assets classified as held for sale Employee benefits Non-current provisions for employee benefits Retained earnings Non-controlling interests Deferred tax liabilities Non-current contract liabilities Trade payables Current financial derivative liabilities Current derivative financial liabilities Current contract liabilities Liabilities included in disposal groups classified as held for sale Investments in property, plant and equipment Purchase of property, plant and equipment, classified as investing activities Investments in intangible assets Purchase of intangible assets, classified as investing activities Investments in non-current contract assets Purchase of other long-term assets, classified as investing activities Investments in entities (or business units) less cash and cash equivalents acquired Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Disclosure of significant accounting policies [text block] Accounting policies Contingent assets and liabilities Disclosure of contingent assets and liabilities explanatory The disclosure of contingent assets and liabilities. Payments for acquisition of equity investments without change of control and other transactions in non-controlling interests Payments Changes In Ownership Interests In Subsidiaries Other Transactions In Non Controlling Interest It represents payments from changes in ownership interests in subsidiaries and capital increases. Payments for acquisition of equity investments without change of control and other transactions in non-controlling interests - other contract liabilities - other contract liabilities Adjustments For Decrease (Increase) In Other Contract Liabilities It represents the decrease and increase of contract libialities within 12 months. - other assets/liabilities (1) - other assets/liabilities (1) It represents the decrease and increase of assets and libialities within 12 months. Adjustments For Decrease (Increase) In Other Assets Liabilities Net financial (income)/expense (1) Net financial (income)/expense (1) Adjustments for finance income (cost) Net (gains)/losses from equity-accounted investments Net (gains)/losses from equity-accounted investments Adjustments for undistributed profits of investments accounted for using equity method Disclosure of contract assets liabilities explanatory The disclosure of contract assets liabilities. Current/Non-current contract assets/(liabilities) Sale/(Purchase) of treasury shares Payments to acquire or redeem entity's shares Sale/(Purchase) of treasury shares Coupons paid to holders of hybrid bonds Coupon paid hybrid bonds classified as financing activities It represents coupon paid to holders of hybrid bonds. Coupons paid to holders of hybrid bonds Increase/(Decrease) in cash and cash equivalents (A+B+C+D) Increase (decrease) in cash and cash equivalents Trade receivables Disclosure of trade and other receivables [text block] Equity Disclosure of share capital, reserves and other equity interest [text block] Disclosure of investments in subsidiaries in associates and joint ventures explanatory List of investments in subsidiaries in associates and joint ventures. Attachments - other comprehensive income/(expense) Other comprehensive income Climate change disclosures The disclosure Of Climate Change. Disclosure of climate change Disclosure of non financial information explanatory The disclosure of non financial information. COVID-19 disclosures Restatement of comparative disclosures Disclosure of reclassifications or changes in presentation [text block] Main acquisitions and disposals during the year Disclosure of change in ownership interests in subsidiaries explanatory The disclosure of change In ownership interests in subsidiaries. Other current liabilities Disclosure of other current liabilities [text block] Performance and financial position by business line and geographical area Disclosure of entity's operating segments [text block] Revenue Disclosure of revenue [text block] Costs Disclosure of expenses by nature [text block] Net results from commodity contracts Disclosure of net results from commodity contracts The disclosure of net results from commodity contracts. Disclosure of finance income (cost) [text block] Share of profit/(loss) of equity-accounted investments Disclosure of income expense of investments accounted for using equity method explanatory The disclosure of income expense of investments accounted for using equity method. Profit or loss [abstract] Profit or loss [abstracProfit or loss [abstract] Declaration of the Chief Executive Officer Disclosure of authorisation of financial statements [text block] [Total] Non-current assets - profit/(loss) for the year Profit for the year (owners of the Parent and non-controlling interests) Profit (loss) Profit for the year Disclosure of financial assets [text block] Disclosure of financial instruments [text block] Financial instruments Statement [Table] Other current financial assets Other non-current assets Disclosure of other non-current assets [text block]