Actuarial (losses) gains and impact of limit on assets for defined benefit pensions plans Actuarial (losses) gains and impact of limit on assets for defined benefit pensions plans Effect of Changes in Consolidation Methods and Others on Cash and Equivalents Effect of Changes in Consolidation Methods and Others on Cash and Equivalents Disclosure Of Other Long-Term Credits [Text Block] Disclosure Of Other Long-Term Credits Other comprehensive income, net of tax, cash flow hedges costs Other comprehensive income net of tax cash flow hedges costs Other comprehensive income net of tax cash flow hedges costs Liabilities [abstract] Assets [abstract] Payments for Financial Investments not Included in Cash Equivalents Payments for Financial Investments not Included in Cash Equivalents (Payments)/ proceeds of treasury shares and other operations with shareholders and with minority interests (Payments)/ proceeds of treasury shares and other operations with shareholders and with minority interests Name of reporting entity or other means of identification Profit (loss), attributable to [abstract] Description of nature of entity's operations and principal activities Legal form of entity Financial assets and other assets, non-current Financial assets and other non-current assets Payables and other liabilities, non-current Payables and other non-current liabilities Pagos de explotacion e inversiones materiales e intangibles financiados Pagos de explotacion e inversiones materiales e intangibles financiados Country of incorporation Statement of changes in equity [line items] Current assets [abstract] Other comprehensive income [abstract] Gains (losses) on cash flow hedge costs, before tax Gains (losses) on cash flow hedge costs, before tax Domicile of entity Payables and other liabilities, current Payables and other current liabilities Cash flows from (used in) financing activities [abstract] Proceeds from (Payments for) Placements of Cash Surpluses not Included in Cash Equivalents Proceeds from (Payments for) Placements of Cash Surpluses not Included in Cash Equivalents Cash received from operations Cash received from operations Equity [abstract] Non-current assets [abstract] Reclassification adjustment on remeasurements of defined benefit plans, before tax Reclassification adjustment on remeasurements of defined benefit plans, before tax Principal place of business Equity and liabilities [abstract] Profit (loss) from operating activities before depreciation and amortization Profit (loss) from operating activities before depreciation and amortization Profit (loss) from operating activities before depreciation and amortization Cash flows from (used in) operating activities [abstract] Income Tax Relating to Reclassification of Gains (Losses) on Cash Flow Hedge Costs Income Tax Relating to Reclassification of Gains (Losses) on Cash Flow Hedge Costs Reclassification adjustments on cash flow hedge costs, before tax Reclassification adjustments on cash flow hedge costs, before tax Proceeds from Financial Investments not Included in Cash Equivalents Proceeds from Financial Investments not Included in Cash Equivalents Cash flows from (used in) operating activities Address of entity's registered office Income Tax Relating to Share of Gains (Losses) Recognized Directly in Equity of Associates and Other Income Tax Relating to Share of Gains (Losses) Recognized Directly in Equity of Associates and Other Disclosure Of Deposits And Guarantees [Text Block] Disclosure Of Deposits And Guarantees Statement of changes in equity [table] Profit (loss) [abstract] Income Tax Relating to Reclassification of Gains (Losses) on Cash Flow Hedge Income Tax Relating to Reclassification of Gains (Losses) on Cash Flow Hedge Disclosure of environmental aspects [Text Block] Disclosure of environmental aspects Cash Reclassified To Assets Held For Sale Cash Reclassified To Assets Held For Sale Earnings per share [abstract] Increase (Decrease) through Undated Subordinated Securities Increase (Decrease) through Undated Subordinated Securities Non-current liabilities [abstract] Cash flows from (used in) investing activities Receivables and other assets, current Receivables and other current assets Cash flows from (used in) investing activities [abstract] Current liabilities [abstract] Reduction of issued capital Tax effect on gains (losses) on hedges Tax effect on gains (losses) on hedges Increase (decrease) in cash and cash equivalents Net payments of interest and other financial expenses, net of dividends received Net payments of interest and other financial expenses, net of dividends received Name of ultimate parent of group Other comprehensive income, net of tax, gains (losses) on revaluation Components of equity [axis] Operations with other equity holders Operations with other equity holders Share of (losses) gains recognized directly in equity for associates and others Share of (losses) gains recognized directly in equity for associates and others Cash paid from operations Cash paid from operations Comprehensive income attributable to [abstract] Income tax relating to cash flow hedge costs included in other comprehensive income Income tax relating to cash flow hedge costs included in other comprehensive income 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 Cash flows from (used in) financing activities Name of parent entity Effect of exchange rate changes on cash and cash equivalents [abstract] Disclosures of contractual assets and liabilities, and deferred expenses [Text Block] Disclosures of contractual assets and liabilities, and deferred expenses Net Financial Expense Net Financial Expense Net Financial Expense (Payments on investments)/ proceeds from the sale in property, plant and equipment and intangible assets, net (Payments on investments)/ proceeds from the sale in property, plant and equipment and intangible assets, net