Document and Entity Information Document Information [Table] Classes of share capital [axis] Ordinary shares American Depositary Shares This member stands for the information pertaining to "American Depositary Shares". Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact Document Information [Line Items] Document Type Document Registration Statement Document Annual Report Document Period End Date Document Transition Report Document Shell Company Report Entity File Number Contact Personnel Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Postal Zip Code Entity Address, City or Town Entity Address, Country City Area Code Local Phone Number Contact Personnel Fax Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company Document Accounting Standard Entity Shell Company Entity Central Index Key Amendment Flag Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus ICFR Auditor Attestation Flag No Trading Symbol Flag Auditor Name Auditor Location Auditor Firm ID Document Financial Statement Error Correction [Flag] CONSOLIDATED BALANCE SHEET Ifrs Statement Ifrs Statement [Table] Statement [Table] Categories of related parties [axis] Related parties Cash and cash equivalents Significant accounting policies, estimates and judgements Statement Ifrs Statement [Line Items] Ifrs Statement ASSETS Assets [Abstract] Current assets Current assets [abstract] Cash and cash equivalents Cash and cash equivalents. Financial assets at fair value through profit or loss Total current financial assets at fair value through profit or loss Financial assets at fair value through profit or loss Other current financial assets Other current financial assets Trade and other current receivables Total trade and other receivables, net of allowance for doubtful accounts Trade and other receivables Current inventories Inventories Current inventories Income tax receivables Income tax receivables, Current Current tax assets, current Other current assets Other current assets, total Other current assets Other current assets Current assets Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners Non-current assets Non-current assets [abstract] Property, plant and equipment Property, plant and equipment - beginning of the year Property, plant and equipment - end of the year Property, plant and equipment. Right-of-use assets Net carrying amount - end of period Net carrying amount - beginning of period Intangible assets and goodwill Net carrying amount - end of the year Net carrying amount - beginning of the year Intangible assets Inventory - Compulsory stock Inventories held for compliance purposes Non-current inventories Book value of the investment Investments accounted for using equity method Book value of the investment Book amount - end of the year Book amount - beginning of the year Book value Equity-accounted investments Other investments Other investments valued at fair value Carrying amount at the beginning of the year Carrying amount at the end of the year Investments other than investments accounted for using equity method Other non-current financial assets Other non-current financial assets Other non-current financial assets Other non-current financial assets Deferred tax assets Deferred tax assets Net deferred tax assets Income tax receivables Income taxes receivables, Non current Current tax assets, non-current Other non-current assets Other non-current assets, total Other non-current assets Other non-current assets Non-current assets Non-current assets Non-current assets Long-Lived Assets Assets held for sale Non-current assets or disposal groups classified as held for sale Total assets TOTAL ASSETS TOTAL ASSETS Assets LIABILITIES AND EQUITY Equity and liabilities [abstract] Current liabilities Current liabilities [abstract] Short-term debt Short-term debt Short-term Debt Current portion of long-term debt Current portion of non-current borrowings Current portion of non-current lease liabilities Current portion of long-term lease liabilities Current lease liabilities Trade and other payables Trade and other current payables Trade and other current payables Income tax payables Income tax payables, Current Current tax liabilities, current Other current liabilities Other current liabilities, total Other current liabilities Current liabilities Current liabilities other than liabilities included in disposal groups classified as held for sale Non-current liabilities Non-current liabilities [abstract] Long-term debt Non-current portion of non-current borrowings Non-current lease liabilities Long-term lease liabilities Non-current lease liabilities Provisions Carrying amount at beginning of period Carrying amount at end of period Other provisions Provisions for employee benefits Provisions for employee benefits. Deferred tax liabilities Deferred tax liabilities Net deferred tax liabilities Income tax payables Income tax payables, Non current Current tax liabilities, non-current Other non-current liabilities Other non-current liabilities, total Other non-current liabilities Non-current liabilities Non-current liabilities Non-current liabilities Non-current liabilities Liabilities held for sale Liabilities directly associated with assets held for sale Liabilities included in disposal groups classified as held for sale Total liabilities TOTAL LIABILITIES TOTAL LIABILITIES Liabilities EQUITY Equity [Abstract] Share capital Share capital Share capital Issued capital Share capital Share capital Retained earnings Retained earnings excluding profit (loss) for the current period Cumulative currency translation differences Cumulative currency translation differences Reserve of exchange differences on translation Other reserves and equity instruments Other reserves. Treasury shares Treasury shares Treasury shares. Profit Profit for the year Profit Or Loss Attributable To Ordinary Equity Holders Of Parent Entity The profit (loss) attributable to ordinary equity holders of the parent equity. Equity attributable to equity holders of Eni As recorded in Consolidated Financial Statements, Shareholders' equity Equity attributable to owners of parent Non-controlling interests. Non-controlling interest Non-controlling interest Equity Net equity TOTAL EQUITY Balance Balance Equity. TOTAL LIABILITIES AND EQUITY Equity and liabilities Current assets Current assets Current liabilities Current liabilities Current liabilities CONSOLIDATED PROFIT AND LOSS ACCOUNT Sales from operations Sales from operations Revenue from contracts with customers Other income and revenues Other income and revenues Other income and revenues The amount of other income and revenues. REVENUES AND OTHER INCOME Revenues and other income Revenue and other income The amount of revenue and other income. The total amount of purchase services and other costs. Total Purchases Services And Other Costs Purchases, services and other Purchases, services and other Net (impairments) reversals of trade and other receivables Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables Net (impairments) reversals of trade and other receivables Payroll and related costs Payroll and related costs Payroll And Related Costs Other operating income (expense) Other operating income (expense) Other operating income (expense) Other operating income (expense) Depreciation and amortization Depreciation and amortisation expense Net impairment losses Net (impairments) reversals of tangible, intangible and right-of-use assets Impairment loss (reversal of impairment loss) recognised in profit or loss Finance incomes and derivative financial instruments Finance incomes Finance income Finance income Finance expenses Finance costs Finance expense Finance expenses Net finance income (expense) from financial assets at fair value through profit or loss Net finance income (expense) from financial assets held for trading Gains (losses) on financial assets at fair value through profit or loss Financial assets at fair value through profit or loss, Income (expense) recognized in profit and loss account Change of the underlying item Income (expense) from derivative financial instruments Derivative financial instruments Finance income (expense) Finance income (expense) FINANCE INCOME (EXPENSE) Finance income (cost) The share of profit (loss) from equity-accounted investments. Share Of Profit Loss Of Equity Accounted Investments Share of profit (loss) from equity-accounted investments The amount of other gain (loss) from investments. Other Income Expense From Investments Other gain (loss) from investments Other gain (loss) from investments Other income (expense) from investments Gain on disposals The amount of income (expense) from investments. Investment Income (Expense) Income (expense) from investments INCOME (EXPENSE) FROM INVESTMENTS Profit (loss) before income taxes PROFIT BEFORE INCOME TAXES Profit (loss) before taxation Profit (loss) before tax Income tax expense Income taxes Tax expense (income), continuing operations Profit for the year PROFIT Profit Profit (loss) Profit (loss), attributable to owners of parent Profit (loss) attributable to Eni Attributable to Eni Net Profit Attributable to non-controlling interest Non-controlling interest, Net profit Profit (loss), attributable to non-controlling interests Profit attributable to non-controlling interest Earnings per share (€ per share) No definition available. Earning Per Share [Abstract] Earnings (loss) per share ( per share) Operating expense Operating expense Depreciation, amortization and impairments Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss Amount of other operating profit (loss). Other operating profit (loss) Other Operating Profit Loss Profit (loss) from discontinued operations Profit (loss) - discontinued operations CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME Other comprehensive income [abstract] Other items of comprehensive income (loss) Items that are not reclassified to profit or loss in later periods Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] Remeasurements of defined benefit plans Remeasurements Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans Share of other comprehensive income (loss) on equity-accounted investments Share of other comprehensive income (loss) of equity-accounted investments that will not be reclassified to profit or loss, before tax The amount of share of other comprehensive income (loss) of equity-accounted investments that will not be reclassified to profit or loss, before tax. Change of minor investments measured at fair value with effects to OCI Other comprehensive income, before tax, gains (losses) from investments in equity instruments Tax effect Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss Items that are not reclassified to profit or loss in later periods Total items that are not reclassified to profit or loss in later periods, net of tax Other comprehensive income that will not be reclassified to profit or loss, net of tax Items that may be reclassified to profit or loss in later periods Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] Currency translation differences Other comprehensive income, before tax, exchange differences on translation Change in the fair value of cash flow hedging derivatives Other comprehensive income, before tax, cash flow hedges Share of other comprehensive income (loss) on equity-accounted investments Share of other comprehensive income (loss) of equity-accounted investments that will be reclassified to profit or loss, before tax The amount of share of other comprehensive income (loss) of equity-accounted investments that will be reclassified to profit or loss, before tax. Tax effect Income tax relating to components of other comprehensive income that will be reclassified to profit or loss Items that may be reclassified to profit or loss in later periods Total items that may be reclassified to profit or loss in later periods, net of tax Other comprehensive income that will be reclassified to profit or loss, net of tax Total other items of comprehensive income (loss) Other comprehensive income (loss) Other comprehensive income Total comprehensive income (loss) of the year Total comprehensive income Total other comprehensive income (loss) Comprehensive income Attributable to Eni Comprehensive income, attributable to owners of parent Comprehensive income, attributable to non-controlling interests Attributable to non-controlling interest CONSOLIDATED STATEMENT OF CHANGES IN EQUITY Statement of changes in equity [table] Components of equity [axis] Share capital Retained earnings excluding profit (loss) for current period [member] Retained earnings Cumulative currency translation differences Other reserves and equity instruments Treasury shares Total Non-controlling interests Cumulative effect at date of initial application [axis] Opening balance before adjustment, cumulative effect at date of initial application [member] Changes in accounting policies Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application [member] Opening balance after adjustment Opening balance after adjustment, cumulative effect at date of initial application [member] Shareholders' equity Statement of changes in equity [line items] Items that are not reclassified to profit or loss in later periods Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Remeasurements of defined benefit plans net of tax effect Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans The amount of share of other comprehensive income (loss) of equity accounted investments that will not be reclassified to profit or loss net of tax. Share Of Other Comprehensive Income (Loss) Of Equity Accounted Investments That Will Not Be Reclassified To Profit Or Loss Net Of Tax Share of "Other comprehensive income (loss)" on equity-accounted investments related to benefit plans remeasurements Change of minor investments measured at fair value with effects to OCI Other comprehensive income net of tax financial assets measured at fair value through other comprehensive income loss Items that may be reclassified to profit or loss in later periods Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Currency translation differences Other comprehensive income, net of tax, exchange differences on translation Change in the fair value of cash flow hedge derivatives net of tax effect Other comprehensive income, net of tax, cash flow hedges Share of "Other comprehensive income (loss)" on equity-accounted investments Share Of Other Comprehensive Income Of Equity Accounted Investments That Will Be Reclassified To Profit Or Loss Net Of Tax The amount of share of other comprehensive income of equity accounted investments that will be reclassified to profit or loss net of tax. Dividend distribution of Eni SpA Dividends recognised as distributions to owners of parent, relating to prior years Interim dividend distribution of Eni SpA Interim dividend distribution of Eni SpA Dividends recognised as distributions to owners of parent, relating to current year Decrease through other distributions to owners, equity Dividend distribution of other companies Increase (decrease) through appropriation of retained earnings, equity Allocation of profit (loss) The decrease in equity through reimbursement to non-controlling interests. Decrease through reimbursement to non-controlling interests Reimbursement to non-controlling interests Capital contribution by non-controlling interests Increase through capital contributions by non-controlling interests The increase in equity through capital contributions by non-controlling interests. Purchase of treasury shares Purchase of treasury shares Cancellation of treasury shares Cancellation of treasury shares Increase in non-controlling interest relating to acquisition of consolidated entities Increase (decrease) through acquisition of subsidiary, equity The decrease in equity resulting from coupon payment of perpetual subordinated bonds. Decrease through coupon payment on perpetual subordinated bonds, equity Coupon payment on perpetual subordinated bonds Increase decrease through changes in ownership interests in subsidiaries that do not result in loss of control Change in non‐controlling interest Transactions with holders of equity instruments Increase (decrease) through transactions with owners, equity Issue of convertible instruments Issuing effect of convertible bonds The amount of costs for the issue of perpetual subordinated bonds. Costs For The Issue Of Perpetual Subordinated Bonds Costs for the issue of perpetual subordinated bonds Costs for the issue of perpetual subordinated bonds The amount of other changes. Other Changes Other changes Other changes in equity Total In crease Decrease Through Other Changes In Equity CONSOLIDATED STATEMENT OF CASH FLOWS Depreciation and amortization Adjustments for depreciation and amortisation expense Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss Net impairments (reversals) of tangible, intangible and right-of-use assets Share of (profit) loss of equity-accounted investments Adjustments for undistributed profits of investments accounted for using equity method Net gain on disposal of assets Adjustments for losses (gains) on disposal of non-current assets Dividend income Adjustments for dividend income Interest income Adjustments for interest income Interest expense Adjustments for interest expense Income taxes Adjustments for income tax expense Other changes Other adjustments to reconcile profit (loss) - inventories Adjustments for decrease (increase) in inventories Adjustments for decrease (increase) in trade accounts receivable - trade receivables - trade payables Adjustments for increase (decrease) in trade accounts payable - provisions Adjustments for provisions Adjustments for increase (decrease) in other assets and liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. Adjustments For Increase Decrease In Other Assets And Liabilities - other assets and liabilities Adjustments for increase (decrease) in employee benefit liabilities Net change in the provisions for employee benefits Change in the provisions for employee benefits Dividends received Dividends received, classified as operating activities Interest received Interest received, classified as operating activities Interest paid Interest paid, classified as operating activities Income taxes paid, net of tax receivables received Income taxes paid (refund), classified as operating activities Cash flows from (used in) operating activities Net cash provided from operating activities Net cash provided by operating activities Net cash provided by operating activities Cash flow from investing activities Outflows of cash from investing activities Purchase of property, plant and equipment, classified as investing activities - tangible assets The cash outflow for prepaid right-of-use assets classified as investing activities. Right Of Use Assets Classified As Investing Activities - prepaid right-of-use assets Purchase of intangible assets, classified as investing activities - intangible assets Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities - consolidated subsidiaries and businesses net of cash and cash equivalents acquired Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of before business combination The amount of proceeds from purchase of investments. Purchase Of Investments - investments The cash outflow for securities and financing receivables held for operating purposes, classified as investing activities. Cash Outflows For Securities And Financing Receivables Held For Operating Purposes, Classified As Investing Activities - securities and financing receivables held for operating purposes The amount of changes in payables in relation to investing activities. Changes In Payables In Relation To Investing Activities - change in payables in relation to investing activities Cash flow from disposals Inflows of cash from investing activities - tangible assets Proceeds from sales of property, plant and equipment, classified as investing activities Proceeds from sales of intangible assets, classified as investing activities - intangible assets Cash flows from losing control of subsidiaries or other businesses, classified as investing activities Consolidated subsidiaries and businesses net of cash and cash equivalent disposed of - consolidated subsidiaries and businesses net of cash and cash equivalents disposed of - tax on disposals Income taxes paid (refund), classified as investing activities The amount of proceeds from sales of investments. Proceeds From Sales Of Investments - investments - securities and financing receivables held for operating purposes Cash inflow for securities and financing receivables held for operating purposes, classified as investing activities The amount of cash inflow for securities and financing receivables held for operating purposes, classified as investing activities. The amount of changes in receivables in relation to disposals. Changes In Receivables In Relation To Disposals - change in receivables in relation to disposals The amount of changes in Securities and Financing Receivables held for non operating purposes, classified as investing activities. Changes In Securities And Financing Receivables Held For Non Operating Purposes, Classified As Investing Activities Net change in securities and financing receivables held for non-operating purposes Cash flows from (used in) investing activities Net cash used in investing activities Net cash used in investing activities Increase in long-term financial debt Proceeds from non-current borrowings Repayments of long-term financial debt Repayments of non-current borrowings Payments of lease liabilities, classified as financing activities Payments of lease liabilities Cash flows from (used in) increase (decrease) in current borrowings Increase (decrease) in short-term financial debt Dividends paid to Eni's shareholders Dividends paid to equity holders of parent, classified as financing activities Dividends paid to minority interest Dividends paid to non-controlling interests, classified as financing activities Dividends paid to non-controlling interest Acquisition of additional interests in consolidated subsidiaries Payments from changes in ownership interests in subsidiaries that do not result in loss of control The cash outflow for reimbursements to non-controlling interest, classified as financing activities. Reimbursements to non-controlling interest Payments For Reimbursements To Non-controlling Interest, Classified As Financing Activities The cash inflow (outflow) from changes in ownership interests in subsidiaries that do not result in a loss of control. Sale (purchase) of additional interests in consolidated subsidiaries Proceeds from (payments for) changes in ownership interests in subsidiaries Payments to acquire or redeem entity's shares Purchase of treasury shares Coupon payment on perpetual subordinated bonds Payments of other equity instruments Net cash used in financing activities Net cash used in financing activities Cash flows from (used in) financing activities Effect of exchange rate changes and other changes on cash and cash equivalents Effect Of Exchange Rate Changes And Other Changes On Cash And Cash Equivalents The effect of exchange rate changes on cash and cash equivalents. Change in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Cash and cash equivalents - beginning of the year Cash and cash equivalents - end of the year Cash and cash equivalents if different from statement of financial position Revenue and other income cash flow The amount of revenue and other income cash flow. Costs and other expenses cash flow Costs and other expenses cash flow The amount of costs and other expenses cash flow. The amount of other operating income (expense) cash flow. Other operating income (expense) cash flow Other operating income (loss) cash flow The amount of net change in trade and other receivables and liabilities. Net Change In Trade And Other Receivables And Liabilities Net change in trade and other receivables and payables The cash inflow from net interests. Net Interests Net interests cash flow The cash outflow for capital expenditure intangible and intangible assets. Capital Expenditure Intangible And Intangible Assets Capital expenditure in tangible and intangible assets The cash inflow from sale of investments, classified as investing activities. Disposal of investments Proceeds from disposal of investments, classified as investing activities The amount of net change in accounts payable and receivable in relation to investments. Net Change In Accounts Payable And Receivable In Relation To Investments Net change in accounts payable and receivable in relation to investments The amount of change in financial receivables related to investing activities. Financial Receivables Related To Investing Activities Change in financial receivables Change in financial and lease liabilities Change In Financial And Lease Liabilities The amount of change in financial and lease liabilities. 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 Risks and Uncertainties [Abstract] Risks and uncertainties Disclosure of risks and uncertainties. Risks And Uncertainties [Text Block] Risks and uncertainties Significant accounting policies, estimates and judgements Disclosure of material accounting policy information [text block] Significant accounting policies, estimates and judgements No definition available. Primary financial statements Primary financial statements Disclosure of general information about financial statements [text block] Changes in accounting policies Changes in accounting policies Disclosure of changes in accounting policies [text block] IFRSs not yet effective Disclosure of expected impact of initial application of new standards or interpretations [text block] IFRSs not yet effective Business combinations and other significant transactions Business combinations and other significant transactions Business combinations and other significant transactions The entire disclosure of detailed information about business combinations and divestments. Disclosure of detailed information about business combinations and divestments [Text Block] Cash and cash equivalents Cash and cash equivalents Disclosure of cash and cash equivalents [text block] Financial assets at fair value through profit or loss Financial assets at fair value through profit or loss Financial assets at fair value through profit or loss Disclosure of financial instruments at fair value through profit or loss [text block] Trade and other receivables Trade and other receivables Disclosure of trade and other receivables [text block] No definition available. Current and non-current inventories Current and non-current inventories Disclosure of inventories [text block] Disclosure Of Tax Receivables And Payables Income tax receivables and payables Income tax receivables and payables Disclosure of tax receivables and payables [text block] Disclosure of other assets and liabilities Other assets and liabilities Other assets and liabilities Disclosure of other assets and liabilities [Text Block] The entire disclosure of other assets and liabilities. Property, plant and equipment Property, plant and equipment Disclosure of property, plant and equipment [text block] Right-of-use assets and lease liabilities Right-of-use assets and lease liabilities Disclosure of leases [text block] Intangible assets Intangible assets Disclosure of intangible assets and goodwill [text block] Disclosure Of Investments Investments Investments Disclosure of investments [Text Block] The entire disclosure of investments. Disclosure Of Financial Assets Explanatory Other financial assets Other financial assets Disclosure of other financial assets [Text Block] The entire disclosure of other financial assets. Trade and other payables Trade and other payables Disclosure of trade and other payables [text block] Finance debts Disclosure of financial liabilities [text block] Finance debt Information on net borrowings Information on net borrowings Information on net borrowings Disclosure of borrowings [text block] Disclosure of other provisions [abstract] Provisions Disclosure of other provisions [text block] Provisions for Employee Benefits. Provisions for employee benefits Provisions for employee benefits Disclosure of employee benefits [text block] Deferred tax assets and liabilities Deferred tax assets and liabilities Disclosure of deferred taxes [text block] Disclosure of derivative financial instruments. Derivative financial instruments and hedge accounting Derivative financial instruments and hedge accounting Disclosure of derivative financial instruments [text block] Disclosure Of Discontinued Operations Explanatory. Assets held for sale and liabilities directly associated with assets held for sale Assets held for sale and liabilities directly associated with assets held for sale Disclosure of non-current assets or disposal groups classified as held for sale [text block] Equity Disclosure of share capital, reserves and other equity interest [text block] Equity No definition available. Other information Other information Disclosure of cash flow statement [text block] No definition available. Guarantees, commitments and risks Disclosure of guarantees commitments and risks. Disclosure Of Guarantees Commitments And Risks [Text Block] Guarantees, commitments and risks Revenues and other income Revenues and other income Disclosure of revenue [text block] Costs Costs Disclosure of expenses [text block] No definition available. Finance income (expense) Finance income (expense) Disclosure of finance income (cost) [text block] No definition available. Income (expense) from investments Income (expense) from investments Disclosure Of Income Expense From Investments [Text Block] The entire disclosure of income (expense) from investments. Disclosure of Income Tax Explanatory. Income taxes Income taxes Disclosure of income tax [text block] Earnings (loss) per share Earnings (loss) per share Disclosure of earnings per share [text block] Segment information and information by geographical area Segment information and information by geographical area Disclosure of entity's operating segments [text block] Disclosure of transactions between related parties [abstract] Disclosure of transactions between related parties [text block] Transactions with related parties Disclosure of investments Other information about investments Other information about investments Disclosure of interests in other entities [text block] No definition available. Significant non-recurring events and operations The disclosure of non-recurring events and operations. Disclosure Of Significant Nonrecurring Events And Operations [Text Block] Significant non-recurring events and operations Positions or transactions deriving from atypical and/or unusual operations No definition available. The disclosure of positions or transactions deriving from atypical and/or unusual operations. Disclosure Of Positions Or Transactions Deriving From A typical And or Unusual Operations [Text Block] Positions or transactions deriving from atypical and/or unusual operations Subsequent events Subsequent events Disclosure of events after reporting period [text block] Disclosure of basis of preparation of financial statements [text block] Basis of preparation Significant accounting estimates and judgements Disclosure of accounting judgements and estimates [text block] Subsidiaries Description of accounting policy for subsidiaries [text block] Description of accounting policy for investments in joint ventures [text block] Interests in joint arrangements Description of accounting policy for investment in associates [text block] Investments in associates The description of the entity's accounting policy for equity method of accounting. Description of accounting policy for equity method of accounting [Text Block] The equity method of accounting Description of accounting policy for business combinations [text block] Business combinations The description of the entity's accounting policy for accounting judgements and estimates relating to investments and business combinations. Description of accounting policy for Significant accounting estimates and judgements investments and business combinations [Text Block] Significant accounting estimates and judgements: investments and business combinations The description of the entity's material accounting policy information for intra-group transactions. Intragroup transactions Description of accounting policy for intragroup transactions [Text Block] Description of accounting policy for functional currency [text block] Foreign currency translation Oil and natural gas exploration, appraisal, development and production activities Description of accounting policy for oil and gas exploration, appraisal, development and production expenditure [Text Block] The description of the entity's material accounting policy information for oil and natural gas exploration, appraisal, development and production activities. Property, plant and equipment Description of accounting policy for property, plant and equipment [text block] Leases Description of accounting policy for leases [text block] Intangible assets Description of accounting policy for intangible assets and goodwill [text block] Impairment of non-financial assets Description of accounting policy for impairment of non-financial assets [text block] Grants related to assets Description of accounting policy for measuring inventories [text block] Inventories Description of accounting policy for financial instruments [text block] Financial instruments Derivative financial instruments and hedge accounting Description of accounting policy for derivative financial instruments and hedging [text block] Offsetting of financial assets and liabilities Description of accounting policy for offsetting of financial instruments [text block] Derecognition of financial assets and liabilities Description of accounting policy for derecognition of financial instruments [text block] Description of accounting policy for employee benefits [text block] Employee benefits Share-based payments Description of accounting policy for share-based payment transactions [text block] The description of the entity's material accounting policy information for equity instruments. Equity instruments Description of accounting policy for equity instruments [Policy Text Block] Description of accounting policy for recognition of revenue [text block] Revenue from contracts with customers Exchange differences Description of accounting policy for foreign currency translation [text block] Dividends Description of accounting policy for dividends [text block] Income taxes Description of accounting policy for income tax [text block] Description of accounting policy for fair value measurement [text block] Fair value measurements Schedule of foreign exchange rates used to translate the financial statements into Parent's functional currency Disclosure of effect of changes in foreign exchange rates [text block] Schedule of change in classification of investment Disclosure of change in classification of investment [Table Text Block] Tabular disclosure of change in classification of investment. Schedule of detailed information about business combinations Disclosure of detailed information about business combination [text block] Schedule of detailed information about divestments Tabular disclosure of detailed information about divestments. Disclosure of detailed information about divestments [Table Text Block] Disclosure of financial assets [table] Categories of financial assets [axis] Financial assets at fair value through profit or loss Financial assets at fair value through profit or loss, category [member] Financial assets at fair value through profit or loss Disclosure of financial assets [line items] Disclosure of financial assets at fair value through profit and loss Disclosure of financial instruments designated at fair value through profit or loss [text block] Tabular disclosure of detailed information about financial assets at fair value through profit and loss breakdown by currency. Schedule of financial assets at fair value through profit and loss breakdown by currency Disclosure of detailed information about financial assets at fair value through profit and loss breakdown by currency [Table Text Block] Tabular disclosure of analysis of trade and other receivables. Schedule of analysis of trade and other receivables Disclosure Of Detailed Information About Trade And Other Receivables [Table Text Block] Schedule of provision matrix Disclosure of provision matrix [text block] Schedule of analyses the allowance for doubtful accounts for trade and other receivables Disclosure of allowance for credit losses [text block] Schedule of net (impairment losses) reversals of trade and other receivables Disclosure Of Impairment Loss On Financial Assets [Table Text Block] Tabular disclosure of net (impairment losses) reversals of trade and other receivables. Schedule of current and non-current inventories Disclosure Of Detailed Information About Inventories [Table Text Block] Tabular disclosure of current and non-current inventories. Tabular disclosure of income tax receivables and payables. Schedule of income tax receivables and payables Disclosure Of Detailed Information About Income Tax Receivables and Payables Disclosure of information about other assets and liabilities [Table Text Block] Schedule of other assets and liabilities Tabular disclosure of other assets and liabilities. Schedule of property, plant and equipment Disclosure of detailed information about property, plant and equipment [text block] Disclosure Of Detailed Information About Depreciation Rates [Table Text Block] Tabular disclosure of depreciation rates. Schedule of depreciation rates Schedule of stratification of the suspended wells pending final determination of proved reserves aging Disclosure Of Detailed Information About Stratification Of Suspended Wells Pending Final Determination Of Proved Reserves Aging [Table Text Block] Tabular disclosure of stratification of the suspended wells pending final determination of proved reserves aging. Tabular disclosure of unproved mineral interests. Disclosure Of Detailed Information About Unproved Mineral Interests [Table Text Block] Schedule of unproved mineral interests Summary of information about right-of-use assets Disclosure of quantitative information about right-of-use assets [text block] The disclosure of quantitative information about liabilities for leased assets. Disclosure Of Quantitative Information About Lease Liabilities Explanatory Summary of information about liabilities for leased assets The disclosure of amounts recognized in the profit and loss account for leases. Summary of amounts recognized in the profit and loss account for leases Disclosure Of Amounts Recognized In Profit And Loss Account For Leases Explanatory Disclosure Of Intangible Assets Explanatory [Tables] Disclosure Of Intangible Assets Explanatory [Table] Classes of intangible assets other than goodwill [axis] Exploration rights Disclosure Of Intangible Assets Explanatory [Line items] Disclosure Of Intangible Assets Explanatory [Line Items] Intangible assets Disclosure of detailed information about intangible assets [text block] Schedule of intangible assets The disclosure of detailed information about amortization rates. Disclosure Of Detailed Information About Amortization Rates [Text Block] Schedule of amortization rates used Schedule of goodwill Disclosure of goodwill [text block] Schedule of results of the sensitivity tests expressed in terms of cumulated headroom of the oil&gas CGUs over their corresponding book values under each scenario and potential pre-tax income statement impacts Oil and Gas, Average Sale Price and Production Cost [Table Text Block] Schedule of sensitivity analysis and the main underlying assumptions of each elaboration Disclosure of information for cash-generating units [text block] Schedule of sensititivity analysis for linear cut of -10% of hydrocarbon prices for cash flow projections Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves Disclosure [Table Text Block] Schedule of sensititivity analysis for assumption of projections of weighted average cost of capital plus 1 percent [Table Text Block] Schedule of sensititivity analysis for assumption of the projections of WACC +1% Tabular disclosure of sensititivity analysis for assumption of the projections of weighted average cost of capital +1%. Schedule of equity accounted investments Disclosure of investments accounted for using equity method [text block] Schedule of net carrying amount of equity-accounted investments Disclosure Of Detailed Information About Entity Wise Equity Accounted Investments [Table Text Block] Tabular disclosure of net carrying amount of equity-accounted investments. Schedule of market value of investments listed in regulated stock markets Disclosure Of Detailed Information About Market Value Of Investments Listed In Stock Markets [Table Text Block] Tabular disclosure of market value of investments listed in regulated stock markets. Schedule of additional information about other investments Disclosure of investments other than investments accounted for using equity method [text block] Schedule of other financial assets Disclosure Of Detailed Information About Other Financial Assets [Text Block] Tabular disclosure of other financial assets. The disclosure of the allowance relating to impairments of other financial assets due to credit losses. Disclosure Of Allowance For Credit Losses Other Financial Assets [Text Block] Schedule of financial receivables net of allowance for doubtful accounts Schedule of securities per issuing entity Disclosure Of Detailed Information About Analyses Securities Per Issuing Entity [Table Text Block] Tabular disclosure of securities per issuing entity. Disclosure Of Detailed Information About Trade And Other Payables [Table Text Block] Tabular disclosure of trade and other payables. Schedule of trade and other payables Disclosure of detailed information about borrowings [table] Borrowings by name [axis] This member stands for the information pertaining to "Ordinary Bonds with sustainability-linked bonds". Ordinary Bonds with sustainability-linked bonds Ordinary Bonds with sustainability-linked bonds [member] This member stands for the information pertaining to "Convertible senior unsecured sustainability-linked bond". Convertible senior unsecured sustainability-linked bond Convertible senior unsecured sustainability-linked bond [member] Types of risks [axis] Disclosure of detailed information about borrowings [line items] Borrowings Finance debts Disclosure of detailed information about borrowings [text block] Schedule of finance debt Disclosure of detailed information about undrawn committed borrowing facilities [Table Text Block] Tabular disclosure of detailed information about undrawn committed borrowing facilities. Schedule of breakdown of committed borrowing facilities Schedule of fair value of long-term debt Disclosure of fair value of long-term debt [Table Text Block] Tabular disclosure of fair value of long-term debt. Schedule of changes in liabilities arising from financing activities Disclosure of reconciliation of liabilities arising from financing activities [text block] Schedule of net borrowings Disclosure of detailed information of net borrowings [Text Block] Tabular disclosure of net borrowings. Schedule of provisions for contingencies Disclosure of changes in other provisions [Table Text Block] Tabular disclosure of provisions for contingencies. Schedule of provision for employee benefits Disclosure of defined benefit plans [text block] Schedule of present value of employee benefits, estimated by applying actuarial techniques Disclosure of net defined benefit liability (asset) [text block] The disclosure of detailed information about employee benefits costs charged to profit and loss account and other comprehensive income. Disclosure of Detailed Information About Employee Benefits Costs Charged to Profit and Loss Account and Other Comprehensive Income [Text Block] Schedule of costs charged to profit and loss account and other comprehensive income Schedule of plan assets Disclosure of fair value of plan assets [text block] Tabular disclosure of main actuarial assumptions used in measurement of defined benefit liabilities and estimate of costs expected. Schedule of Actuarial Assumptions in Measurement of Defined Benefit Liabilities and Estimate of Costs [Table Text Block] Schedule of actuarial assumptions used in measurement of defined benefit liabilities and estimated cost Schedule of analysis by geographical area related to the main actuarial assumptions used in the valuation of the principal foreign defined benefit plans Disclosure Of Detailed Information About Geographical Area Related To Main Actuarial Assumptions Used In Valuation Of Principal Foreign Defined Benefit Plans Table Text Block [Text Block] Tabular disclosure of analysis by geographical area related to the main actuarial assumptions used in the valuation of the principal foreign defined benefit plans. Schedule of effect of possible changes in actuarial assumptions Disclosure of sensitivity analysis for actuarial assumptions [text block] Schedule of analysis by maturity date of the liabilities for employee benefit plans and their relative weighted average duration Disclosure of information about maturity profile of defined benefit obligation [text block] The disclosure of detailed information about deferred tax assets and liabilities. Schedule of deferred tax assets and liabilities Disclosure Of Detailed Information About Deferred Tax Assets And Liabilities [Text Block] Schedule of significant temporary differences to net deferred tax liabilities Disclosure of temporary difference, unused tax losses and unused tax credits [text block] The disclosure of the reconciliation of changes in deferred tax liability assets. Schedule of changes in deferred tax liabilities and assets Disclosure Of Reconciliation Of Changes In Deferred Tax Liability Assets [Text Block] Schedule of derivative financial instruments Disclosure of fair value measurement [text block] Schedule of hedging derivative instruments Disclosure of detailed information about hedging instruments [text block] Schedule of breakdown of underlying asset or liability under cash flow hedge and fair value hedge Disclosure of detailed information about hedged items [text block] The disclosure of detailed information about the analysis of net income (loss) on commodity derivatives. Disclosure Of Detailed Information About Other Operating Income Loss [Text Block] Schedule of effects recognized in other operating profit (loss) Schedule of effects recognized in finance income (loss) Disclosure Of Detailed Information About Finance Income Loss On Derivative Financial Instruments [Text Block] Tabular disclosure of effects recognized in finance income (loss). Disclosure of non-controlling interests [text block] Schedule of non-controlling interest Schedule of equity attributable to equity holders of Eni Disclosure of detailed information about Share capital Reserves and Equity interest Table text block [Text Block] Tabular disclosure of equity attributable to equity holders of eni. Schedule of other comprehensive income reserves Disclosure of reserves within equity [text block] Schedule of reconciliation of net profit and equity attributable to Eni of the parent company Eni SpA to consolidated net profit and equity attributable to Eni Disclosure Of Detailed Information About Reconciliation Of Net Profit And Shareholders Equity Of Parent Company To Consolidated Net Profit And Shareholders Equity [Table Text Block] Tabular disclosure of reconciliation of net profit and equity attributable to eni of the parent company eni spa to consolidated net profit and equity attributable to eni. Tabular disclosure of other information. Disclosure Of Detailed Information About Supplemental Cash Flow Information [Table Text Block] Schedule of other information Disclosure of detailed information about purchase price allocation of net assets acquired in business combination [Table Text Block] Schedule of purchase price allocation of net assets acquired in business combination Tabular disclosure of detailed information about purchase price allocation of the net assets acquired in business combinations. No definition available. Disclosure Of Contingent Liabilities Explanatory [Table] Market risk [member] Interest rate risk and currency risk This member stands for the information pertaining to "Interest rate risk and currency risk". Commodity price risk No definition available. Disclosure Of Contingent Liabilities Explanatory [Line Items] Guarantees, commitments and risks The disclosure of detailed information about guarantees. Disclosure Of Detailed Information About Guarantees [Text Block] Schedule of guarantees The disclosure of detailed information about commitments and risks. Disclosure Of Detailed Information About Commitments And Risks [Text Block] Schedule of commitments and risks Schedule of market risk Sensitivity analysis for types of market risk [text block] The disclosure of a detailed information about maturity analysis for finance debt repayments including interest charges and derivatives. Disclosure Of Detailed Information About Maturity Analysis For Finance Debt Repayments Including Interest Charges And Derivatives [Text Block] Schedule of expected payments for finance debts and lease liabilities The disclosure of detailed information about trade and other payables by maturity. Schedule of trade and other payables by maturity Disclosure Of Detailed Information About Trade And Other Payables By Maturity [Text Block] The disclosure of detailed information about expected payments by period under contractual obligations as of the balance sheet date, shown on an undiscounted basis. Disclosure Of Detailed Information About Expected Payments By Period Under Contractual Obligations [Text Block] Schedule of principal contractual obligations The detailed information about the committed projects. Disclosure Of Committed Projects [Text Block] Schedule of committed projects Schedule of carrying amount of financial instruments and relevant economic and equity effect Disclosure of detailed information about financial instruments [text block] Schedule of disclosures about offsetting of financial instruments Disclosure of offsetting of financial assets and financial liabilities [text block] The disclosure of detailed information about net sales from operations. Disclosure of detailed information about net sales from operations [Text Block] Schedule of information about sales from operations Disclosure of revenue from contracts with customers [text block] Schedule of revenue associated with liabilities and performance obligations The disclosure of detailed information about other income and revenues. Disclosure of detailed information about Other income and revenues [Text Block] Schedule of information about other income and revenues The disclosure of detailed information about purchase, services and other. Disclosure Of Detailed Information About Purchase Services And Other [Text Block] Schedule of information about purchase, services and other charges The disclosure of detailed information about payroll and related costs. Payroll And Related Costs [Text Block] Schedule of information about payroll and related costs Schedule of information about average number of employees Disclosure of information about employees [text block] Schedule of information about compensation of key management personnel Disclosure of information about key management personnel [text block] Schedule of finance income (expense) Disclosure Of Detailed Information About Finance Income expenses [Text Block] Tabular disclosure of finance income (expense). Disclosure Of Detailed Information About Type Of Net Finance Income Or Expense [Text Block] Schedule of analysis of finance income (expense) Tabular disclosure of analysis of finance income (expense). Tabular disclosure of other gain (loss) from investments. Disclosure Of Detailed Information About Other Gain Loss From Investments [Text Block] Schedule of other gain (loss) from investments Schedule of information about income taxes Disclosure Of Detailed Information About Income Taxes [Text Block] Tabular disclosure of information about income taxes. Schedule of detailed information about the reconciliation between the statutory tax charge and the effective tax charge Disclosure Of Detailed Information About Reconciliation Between Statutory Tax Charge And Effective Tax Charge [Text Block] Tabular disclosure of detailed information about the reconciliation between the statutory tax charge and the effective tax charge. Its represents about reconciliation of the average number of shares used for the calculation for both basic and diluted earnings per share. Earnings Per Shares [Text Block] Schedule of information about reconciliation of the weighted average number of shares Schedule of information by segment Disclosure of operating segments [text block] Schedule of information by geographical area Disclosure of geographical areas [text block] The disclosure of detailed information about sales from operations by geographical area of destination. Disclosure Of Detailed Information About Sales From Operations By Geographical Area Of Destination [Text Block] Schedule of sales from operations by geography The tabular disclosure of detailed information about transactions and balances with related parties. Disclosure Of Detailed Information About Transactions And Balances With Related Parties [Table Text Block] Schedule of transactions and balances with related parties Schedule of financing transactions and balances with related parties Disclosure Of Detailed Information About Financing Transactions With Related Parties [Text Block] Tabular disclosure of financing transactions and balances with related parties. Schedule of impact of transactions and positions with related parties on balance sheet Disclosure Of Detailed Information About Impact Of Transactions And Positions With Related Parties On Balance Sheet [Text Block] Tabular disclosure of impact of transactions and positions with related parties on balance sheet. Schedule of impact of transactions with related parties on the profit and loss accounts Disclosure Of Detailed Information About Impact Of Transactions With Related Parties On Profit And Loss Accounts [Text Block] Tabular disclosure of impact of transactions with related parties on the profit and loss accounts. Tabular disclosure of main cash flows with related parties. Disclosure Of Detailed Information About Main Cash Flows With Related Parties [Text Block] Schedule of main cash flows with related parties Tabular disclosure of impact of cash flows with related parties. Schedule of impact of cash flows with related parties Disclosure Of Detailed Information About Impact Of Cash Flows With Related Parties [Text Block] Schedule disclosing information related to details of investments. Disclosure Of Detailed Information About Investments [Table] Details of investments Segments [axis] Exploration & Production This member stands for the information pertaining to "Exploration and Production". Exploration & Production assets This member stands for Global Gas & LNG Portfolio segment. Global Gas & LNG Portfolio Enilive, Marketing and Chemicals This member stands for the information pertaining to "Enilive Refining and Chemicals". Enilive, Refining and Chemicals Enilive, Refining and Chemicals [member] Gas power generation Plenitude & Power This member stands for Plenitude & Power segment. This member stands for the information pertaining to "Corporate and Other activities". Corporate and Other activities Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. Disclosure Of Detailed Information About Investments [Line Items] Disclosure of detailed information about investments Schedule of consolidated subsidiaries Disclosure of subsidiaries [text block] Schedule of joint ventures Disclosure of joint ventures [text block] Schedule of interests in associates Disclosure of interests in associates [text block] Disclosure of COVID-19 impact Disclosure of COVID-19 impact [Table] Geographical areas [axis] Russia Joint operations [axis] Blue Stream This member stands for the information pertaining to "Blue Stream Pipeline Co BV". Disclosure of COVID-19 impact Disclosure of COVID-19 impact [Line Items] COVID-19 impact Percentage of Eni's purchases of natural gas Percentage of entity's purchases of natural gas The percentage of entity's purchases of natural gas. Contractual purchases of natural gas The contractual purchases of natural gas. Contractual purchases of natural gas destined to Italy Contractual purchases of natural gas destined to country of domicile The contractual purchases of natural gas destined to country of domicile. TOTAL NET ASSETS Net assets (liabilities) Assets (liabilities) The proportion of ownership interest in joint arrangements and associates. Proportion Of Ownership Interest In Joint Arrangements And Associates % Ownership % Ownership Percentage of increase (decrease) in oil price Yearly Average Increase (Decrease) In Brent Oil Price The percentage of yearly average increase (decrease) in brent oil price. Brent price per barrel of oil during the period. Brent Price Per Barrel Of Oil Brent price per bbl Increase (decrease) in net cash provided by operating activities Increase (Decrease) In Net Cash Provided By Operating Activities The amount of increase (decrease) in net cash provided by operating activities. Annual average exchange rate Exchange rate Period of capitalisation of costs directly associated with exploration well after drilling is completed The period of capitalisation of costs directly associated with exploration well after drilling is completed. Number of days past due for financial asset to be considered in default The period of number of days past due for financial asset to be considered in default. Nominal amount of instruments affected by amendments for interest rate benchmark reform The amount of nominal amount of instruments affected by amendments for interest rate benchmark reform. Joint ventures [axis] Mozambique Rovuma Venture SpA This member stands for the information pertaining to "Mozambique Rovuma Venture SpA". G. Current financial indebtedness (E+F) Current financial liabilities L. Non-current financial indebtedness (I+J+K) Non-current financial liabilities Disclosure of detailed information about business combination [table] Business combinations [axis] Business combinations and other significant transactions Disclosure of business combinations and divestments [Line items] Cash and cash equivalents Cash and cash equivalent (Net borrowings) Cash and cash equivalents recognised as of acquisition date Cash and cash equivalent (Net borrowings) Current financial assets Financial assets recognised as of acquisition date The amount of other current assets recognised as of acquisition date. Other Current Assets Recognised As Of Acquisition Date Other current assets Current assets Current assets Current assets recognised as of acquisition date Property, plant and equipment Property, plant and equipment recognised as of acquisition date Goodwill Goodwill recognised as of acquisition date Deferred tax assets recognised as of acquisition date Deferred tax assets The amount recognised as of the acquisition date for other Non-Current assets acquired in a business combination. Other Non Current Assets Recognised As Of Acquisition Date Other non-current assets Current and non-current assets Non-current assets Non-current assets Non-current assets recognised as of acquisition date Current financial liabilities Current financial liabilities recognised as of acquisition date The amount of current financial liabilities recognised as of acquisition date. Other current liabilities Other Current Liabilities Recognised As Of Acquisition Date The amount recognised as of the acquisition date for other current liabilities assumed in a business combination. Current liabilities Current liabilities recognised as of acquisition date The amount recognised as of the acquisition date for non-current financial liabilities assumed in a business combination. Non-current financial liabilities Non-Current Financial Liabilities Recognised As Of Acquisition Date Provisions Non-current provisions recognised as of acquisition date The amount of non-current provisions recognised as of acquisition date. Deferred tax liabilities Deferred tax liabilities recognised as of acquisition date The amount recognised as of the acquisition date for other non-current liabilities assumed in a business combination. Other Noncurrent Liabilities Recognised As Of Acquisition Date Other non-current liabilities Non-current liabilities Non-current liabilities recognised as of acquisition date The amount recognised as of the acquisition date for equity attributable to owners acquired in a business combination. Equity Attributable To Owners Of Parent Acquisition As Of Date Equity attributable to Eni Non-controlling interest in acquiree recognised at acquisition date Non-controlling interest Non-controlling interests Non-controlling interest The amount recognised as of the acquisition date for equity acquired in a business combination. Equity Acquisition As Of Date TOTAL EQUITY The amount recognised as of the acquisition date for liabilities and equity acquired in a business combination. Liabilities And Equity Acquisition As Of Date TOTAL CASH CONSIDERATION OF THE TRANSACTION Schedule disclosing information related to details of business divestments. Disclosure of detailed information about business divestments [table] Business Divestments [axis] Information by the material business divestment. Entitys Total For Business Divestments [Domain] This member stands for the standard value for the 'Business divestments' axis if no other member is used. SeaCorridor Srl [member] This member stands for the information pertaining to "SeaCorridor Srl". SeaCorridor Srl EniCorridor Srl (now SeaCorridor Srl) Less: Cash and cash equivalents sold Cash And Cash Equivalents Divested The amount of cash and cash equivalents divested. Cash and cash equivalents Current financial assets The amount of current financial assets derecognised as of disposal date. Current financial assets derecognised as of disposal date Other current assets The amount of other current assets derecognised as of disposal date. Other current assets derecognised as of disposal date Current assets The amount of current assets derecognised as of disposal date. Current assets derecognised as of disposal date Current assets Property, plant and equipment The amount of property, plant and equipment derecognised as of disposal date. Property, plant and equipment derecognised as of disposal date Deferred tax assets derecognised as of disposal date Deferred tax assets The amount of deferred tax assets derecognised as of disposal date. The amount of other non-current assets derecognised as of disposal date. Other non-current assets Other Non Current Assets Derecognised as of Disposal Date The amount of non-current assets derecognised as of disposal date. Non-current assets derecognised as of disposal date Non-current assets Non-current assets The amount of current financial liabilities derecognised as of disposal date. Current financial liabilities Current financial liabilities derecognised as of disposal date Other current liabilities The amount of other current liabilities derecognised as of disposal date. Other current liabilities derecognised as of disposal date Current liabilities derecognised as of disposal date The amount of current liabilities derecognised as of disposal date. Current liabilities Current liabilities Non-current financial liabilities derecognised as of disposal date The amount of non-current financial liabilities derecognised as of disposal date. Non-current financial liabilities Provisions The amount of non-current provisions derecognised as of disposal date. Non-current provisions derecognised as of disposal date Deferred tax liabilities The amount of deferred tax liabilities derecognised as of disposal date. Deferred tax liabilities derecognised as of disposal date Other non-current liabilities The amount of other non-current liabilities derecognised as of disposal date. Other non-current liabilities derecognised as of disposal date Non-current liabilities derecognised as of disposal date The amount of non-current liabilities derecognised as of disposal date. Non-current liabilities Non-current liabilities Current and non-current liabilities Liabilities derecognised as of disposal date The amount of liabilities derecognised as of disposal date. TOTAL LIABILITIES TOTAL LIABILITIES Equity attributable to Eni The amount of equity attributable to owners of parent as of disposal date. Equity attributable to owners of parent as of disposal date Equity as of disposal date The amount of equity as of disposal date. TOTAL EQUITY TOTAL EQUITY Liabilities and equity as of disposal date The amount of liabilities and equity as of disposal date. TOTAL LIABILITIES AND EQUITY TOTAL LIABILITIES AND EQUITY Enera Conseil SAS [Member] Enera Conseil SAS This member stands for the information pertaining to "Enera Conseil SAS". HLS Bonete PV SLU and HLS Bonete Topco SLU [member] HLS Bonete PV SLU and HLS Bonete Topco SLU This member stands for the information pertaining to "HLS Bonete PV SLU and HLS Bonete Topco SLU". Novamont group This member stands for the information pertaining to "Novamont group". Novamont group Subsidiaries [axis] Eni New Energy US Inc This member stands for the information pertaining to "Eni New Energy US Inc". Eni New Energy US Inc [Member] This member stands for Versalis SpA. Versalis SpA Geographical [Axis] Geographical [Domain] Algeria Plenitude Represents the information pertaining to Plenitude Segment. Plenitude Plenitude business line This member stands for Chemical segment. Chemical Chemicals Chemicals business line Range [Axis] Power generating capacity, existing or in advanced development The power generating capacity, existing or in advanced development. Consideration Purchase price Consideration transferred, acquisition-date fair value Total purchase price Number of companies acquired by the entity. Number Of Companies Acquired Number of companies acquired Power generating capacity, projected The power generating capacity, projected. Portion of consideration paid (received) consisting of cash and cash equivalents Advances paid in 2021 Consideration paid Number of refueling service stations Number of refueling service stations The number of refueling service stations. Net financial liabilities Net financial liabilities recognised as of acquisition date The amount of net financial liabilities recognised as of acquisition date. Cash consideration Cash transferred Number of gas producing concessions The number of gas producing concessions. Number of gas producing concessions Number of gas-producing concessions acquired Percentage of voting equity interests acquired (in percent) Percentage of voting equity interests acquired Equity interest acquired (as a percent) The percentage of interest held in project. Percentage of interest in project % ownership interest Proportion of ownership interest in joint operation Acquisition-date fair value of equity interest in acquiree Acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date Fair value of investments held before the acquisition of control Fair value of stake already owned This member stands for the information pertaining to "Snam Group". Snam Group [Member] Snam Group Cash consideration Consideration paid (received) Net financial liabilities The amount of net borrowings derecognised as of disposal date. Net borrowings derecognised as of disposal date Net borrowings Net financial liabilities Equity interest disposed (as a percent) The percentage of voting equity interests disposed. Percentage of voting equity interests disposed Net assets and liabilities derecognized The amount of net assets and liabilities derecognised as of disposal date. Net assets and liabilities derecognised as of disposal date Net financial assets derecognised as of disposal date Net financial assets The amount of net financial assets derecognised as of disposal date. Proportion of ownership interest in joint venture (as a percent) Proportion of ownership interest in joint venture % ownership interest Capital gain realized from the sale of investments Gains (losses) on disposals of investments Net gain (loss) on disposals The amount of realized gains (losses) from the disposal of investments, related to exchange differences when financial statements of foreign operations are translated. Realized gains (losses) through net exchange differences, Disposals of investments Realized exchange differences on translation from the disposal of investments Capital gains from the fair value measurement of the business combination Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination Schedule disclosing information related to details of cash and cash equivalents. Disclosure Of Detailed Information About Cash And Cash Equivalents [Table] Currency [Axis] All Currencies [Domain] U.S. dollars US Dollars Euro Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. Disclosure Of Detailed Information About Cash And Cash Equivalents [Line Items] Cash and cash equivalents Financial assets, classified as cash equivalents Restricted cash Restricted cash and cash equivalents The period of the average maturity of bank deposits in days. Average Maturity Period Average maturity period Effective interest rate Deposits, effective interest rate The percentage of effective interest rate on deposits. Classes of financial assets [axis] Bonds issued by sovereign states This member stands for the information pertaining to "Bonds issued by sovereign states". This member stands for the other financial assets at fair value through profit or loss category. Other financial assets at fair value through profit or loss Other financial assets at fair value through profit or loss category [Member] Financial assets held for trading Current financial assets at fair value through profit or loss, classified as held for trading Other Currency [Member] Financial assets held for trading This member stands for the information pertaining to "Quoted bonds issued by sovereign states". Quoted bonds issued by sovereign states Other Bonds This member stands for the information pertaining to "Other Bonds". Types of interest rates [axis] Fixed rate Fixed interest rate [member] Floating rate Floating interest rate [member] Italy United States of America Spain CANADA Canada France Germany Chile Other Other countries This member stands for the information pertaining to "Other countries". Classes of financial instruments [axis] Quoted bonds issued by financial and insurance companies This member stands for the information pertaining to "Quoted bonds issued by financial and insurance companies". Quoted bonds issued by industrial companies This member stands for the information pertaining to "Quoted bonds issued by industrial companies". This member stands for the information pertaining to "Miscellaneous other bonds". Other bonds Nominal value Notional amount Fair value Fair value The credit grades that have been provided by Moody's. Rating - Moody's The description of external rating by s&p grade. Rating - S&P Continuing involvement in derecognised financial assets by type of transfer [axis] Securities lending Levels of fair value hierarchy [axis] Level 1 Level 2 The amount of individual amount limit to be included in other related parties. Individual amount limit to be included in other related parties Current trade receivables Trade receivables Net trade receivables The amount of receivables from joint ventures in exploration and production activities. Receivables from joint ventures in exploration and production activities The amount of receivables from divestments. Current Receivables From Sale Of Assets Receivables from divestments Other receivables Other current receivables Disclosure of trade and other receivables table. Disclosure Of Trade And Other Receivables [Table] Counterparties [axis] Business customers This member stands for the information pertaining to "Business customers". National Oil Companies and Public Administrations This member stands for the information pertaining to "National Oil Companies and Public Administrations". Other counterparties This member stands for the information pertaining to "Other counterparties". Performing receivables This member stands for the information pertaining to "Performing receivables". Defaulted receivables This member stands for the information pertaining to "Defaulted receivables". This members stands for plenitude customers. Plenitude customers Internal credit grades [axis] Low risk This member stands for the information pertaining to "Low risk". Medium risk This member stands for the information pertaining to "Medium Risk". High risk This member stands for the information pertaining to "High Risk". Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount [member] Gross carrying amount Accumulated impairment Disclosure of trade and other receivables line items. Disclosure Of Trade And Other Receivables [Line Items] Trade and other receivables Expected credit loss rate (as a percent) Expected loss (% net of counterpart risk mitigation factors) Expected credit loss rate Customer [Axis] This member stands for the information pertaining to "Retail customer". Retail customer Middle customer This member stands for the information pertaining to "Middle customer". Other customers This member stands for the information pertaining to "Other customers". Past due status [axis] Not-past due from 0 to 3 months from 3 to 6 months from 6 to 12 months Over 12 months Classes of assets [axis] This member stands for the information pertaining to "Trade and other current receivables". Trade and other receivables [member] Trade and other receivables Carrying amount at the beginning of the year Carrying amount at the end of the year Financial assets Additions Increase through origination or purchase, financial assets Other changes Increase (decrease) through other movements, financial assets Other changes Net credit losses Credit losses allowance recognised in profit or loss allowance account for credit losses of financial assets. Credit Losses Allowance Recognised In Profit Or Loss Allowance Account For Credit Losses Of Financial Assets Net credit losses Oil Company [member] Egyptian state oil companies This member stands for the information pertaining to "Enimed SpA". This member stands for Nigerian national oil company. Nigerian National Oil Company Nigerian Privately Held Oil Company This member stands for the information pertaining to "Nigerian Privately Held Oil Company". PDVSA This member stands for the information pertaining to "PDVSA". Nigeria Venezuela NAOC Ltd This member stands for the information pertaining to "NAOC Ltd". Assets and liabilities classified as held for sale [axis] Assets and liabilities not classified as held for sale [member] Assets held for sale Non-current Assets Held For Sale [Member] Impairment of financial assets [axis] Financial assets past due but not impaired Financial assets past due but not impaired [member] Acciaierie d'Italia (ex-ILVA) Acciaierie d'Italia [member] This member stands for the information pertaining to "Acciaierie d'Italia (ex-ILVA)". Products and services [axis] This member stands for the information pertaining to "Gas take-or-pay contracts". Gas take-or-pay contracts Decrease In trade receivables The amount of decrease in trade receivables. Receivables divested without recourse The amount of receivables sold without recourse. Receivables sold without recourse Cash call exposure Cash Call Exposure, Amount The amount of cash call exposure. Counterparty risk mitigation The amount of counterparty risk mitigation factors. The decrease in financial assets resulting from derecognition against charges. Utilizations against charges Decrease through derecognition against charges, financial assets Receivables from natural gas and electricity distributors The amount of current receivables from natural gas and electricity distributors. Current receivables from natural gas and electricity distributors Prepayments for services and suppliers The amount of current prepayments for services and suppliers. Current prepayments for services and suppliers Receivables from factoring companies The amount of current receivables from factoring companies. Current receivables from factoring companies Miscellaneous current receivables from other counterparties The amount of miscellaneous current receivables from other counterparties. Miscellaneous current receivables from other counterparties Receivables, payment terms The period of receivables, payment terms. Percentage of recovery of overdue receivables through implementation of plan (as a percent) The percentage of recovery of receivables due from operations due to implementation of repayment agreement plan. Percentage of recovery of overdue receivables through implementation of plan The period over which the reimbursement of overdue amount is expected to be accomplished. Reimbursement Of Overdue Amount, Period Reimbursement of amount, period Discount factor on receivables (as a percent) The percentage of discount factor on overdue receivables. Discount factor on receivables Overdue percentage on receivables due from operations Overdue Percentage on Receivables Due from Operations The percentage of overdue amount of receivables due from operations. Number of shareholders who purchased the receivables Number Of Shareholders Who Purchased The Receivables The number of shareholders who purchased the receivables from the ventures. Oil and Gas, Delivery Commitment, Quantity Committed Crude oil volume capacity (in volumes) The amount of preventive seizure for corresponding to the alleged litigations. Percentage of net receivables accrued for unpaid cash calls (as a percent) Percentage of net receivables accrued for unpaid cash calls Raw and auxiliary materials and consumables Current raw materials Represents the amount of consumables for infrastructure and facility maintenance. Consumables For Infrastructure And Facility Maintenance Materials and supplies Components and spare parts for drilling operations, plans and equipment Finished Goods and Work in Process, Inventory The amount of goods held by the entity that are readily available for sale and items held by the entity which are partially complete or in the process of being readied for sale. Finished products and goods Other Other current inventories Schedule disclosing information related to details of inventories. Disclosure Of Inventories [Table] This member stands for the information pertaining to "Natural gas and petroleum products". Natural gas and oil products This member stands for chemical products. Chemical products This member stands for the information pertaining to "Oil and petroleum". Oil and petroleum This information related to details of inventories line items. Inventories [Line Items] Current and non-current inventories Inventories pledged as security for liabilities The non-current amount of tax liabilities relating to pending litigation with tax authorities. Pending Litigation With Tax Authorities, Tax Liabilities, Non-current Pending litigation with tax authorities - current Fair value of derivative financial instruments, current assets Current derivative financial assets Other taxes, current assets Current receivables from taxes other than income tax Other assets, current Current prepayments and other current assets Fair value of derivative financial instruments, non-current assets - non-current Non-current derivative financial assets Other taxes, non-current assets Non-current receivables from taxes other than income tax Other assets, non-current Non Current Prepayments And Other Non Current Assets The amount of non current prepayments and other non current assets. - current Fair value of derivatives financial instruments, current liabilities Current derivative financial liabilities Contract liabilities, current Current contract liabilities Current payables on social security and taxes other than income tax Other taxes, current liabilities Other liabilities, current Current Other Liabilities The amount of current other liabilities. - non-current Fair value of derivatives financial instruments, non-current liabilities Non-current derivative financial liabilities Contract liabilities, non-current Non-current contract liabilities Non-current payables on social security and taxes other than income tax Other taxes, non-current liabilities Other liabilities, non-current Non Current Other Liabilities The amount of non current other liabilities. Schedule disclosing information related to details of other assets and liabilities. Disclosure Of Detailed Information About Other Assets And Liabilities [Table] Egyptian state-owned partners This member stands for the information pertaining to "Egyptian state-owned partners". This member stands for Societa Oleodotti Meridionali SpA. Societa Oleodotti Meridionali SpA Legal Entity [Axis] Entity [Domain] Engie SA This member stands for the information pertaining to "Engie SA". Gas and electricity This member stands for the information pertaining to "Gas and electricity". Maturity [axis] Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. Disclosure Of Detailed Information About Other Assets And Liabilities [Line Items] Value added tax receivables Value added tax receivables Current value added tax receivables Current value added tax receivables Gas volume prepayments, current Current prepayments Gas volume prepayments, non-current Non-current prepayments Underlifting positions Current underlifting position of segment The amount of current assets recognized for underlifting position of the segment. Non-current receivables for investing activities The amount of non-current receivables for investing activities. Current advances received Non-current advances received Advances received Advances received Excise duties and consumer taxes Current excise tax payables Current value added tax payables Current value added tax payables The amount of overlifting imbalances. Current overlifting imbalances Liabilities for prepaid revenues and income Deferred income other than contract liabilities Non-current deposits from customers Non-current cautionary deposits Value of gas not withdrawn by customers due to triggering of take-or-pay clause Gas not withdrawn by customers due to triggering of take-or-pay clause The amount of gas not withdrawn by customers due to triggering of take-or-pay clause. Payables related to investing activities The amount of payables related to investing activities. Payables related to investing activities The amount of non-current payables related to investing activities. Non-current payables related to investing activities Current payables related to investing activities The amount of current payables related to investing activities. Current payables related to investing activities Current tax credits related to renovation of residential buildings and energy saving Current tax credits related to renovation of residential buildings and energy saving The amount of current tax credits deriving from certain Italian tax measures to incentivize the renovation of residential buildings and energy saving by entitling contractors with a credit equal to the whole amount of works. Non-current tax credits related to renovation of residential buildings and energy saving Non-current tax credits related to renovation of residential buildings and energy saving The amount of non-current tax credits deriving from certain Italian tax measures to incentivize the renovation of residential buildings and energy saving by entitling contractors with a credit equal to the whole amount of works. The amount of advances received from customers for future gas supplies as a contract liability. Advances received from customers for future gas supplies Advances received from customers for future gas supplies The amount of prepaid electronic fuel vouchers as a contract liability. Prepaid electronic fuel vouchers Prepaid electronic fuel vouchers Current deferred income other than current contract liabilities Current prepaid revenues and deferred income Current liabilities for prepaid revenues and income Non-current prepaid revenues and deferred income Non-current deferred income other than non-current contract liabilities Miscellaneous other current assets The amount of miscellaneous other current assets. Miscellaneous other current assets Miscellaneous other non-current assets The amount of miscellaneous other non-current assets. Miscellaneous other non-current assets Miscellaneous current contract liabilities The amount of miscellaneous current contract liabilities. Miscellaneous current contract liabilities Non-current payables to factoring companies connected with the tax credit transfer The amount of non-current payables to factoring companies in relation to the tax credit transfer. Non-current payables to factoring companies in relation to tax credit transfer Miscellaneous other current liabilities The amount of miscellaneous other current liabilities. Miscellaneous other current liabilities Miscellaneous other non-current liabilities The amount of miscellaneous other non-current liabilities. Miscellaneous other non-current liabilities Disclosure of detailed information about property, plant and equipment [table] Provisions for depreciation and impairment Accumulated depreciation, amortisation and impairment Classes of property, plant and equipment [axis] Land and buildings This member stands for the information pertaining to "Exploration and production wells, plant and machinery". E&P wells, plant and machinery This member stands for the information pertaining to "Other plant and machinery". Other plant and machinery E&P exploration assets and appraisal E&P tangible assets in progress This member stands for the information pertaining to "Exploration and production tangible assets in progress". This member stands for the information pertaining to "Other tangible assets in progress and advances". Other tangible assets in progress and advances Disclosure of detailed information about property, plant and equipment [line items] Property, plant and equipment Additions Capital expenditure Additions other than through business combinations, property, plant and equipment Depreciation capitalized Depreciation capitalized, property, plant and equipment The amount of depreciation capitalized in property, plant and equipment. Depreciation Depreciation, property, plant and equipment Impairment loss recognised in profit or loss, property, plant and equipment Impairment Reversals Reversal of impairment loss recognised in profit or loss, property, plant and equipment Write-off Retirements, property, plant and equipment Write-off Currency translation differences Increase (decrease) through net exchange differences, property, plant and equipment Initial recognition and changes in estimates The amount of increase (decrease) in property, plant and equipment through initial recognition and changes in estimates. Increase (decrease) through initial recognition and changes in estimates, property, plant and equipment Increase (decrease) through changes in scope of consolidation, property, plant and equipment Changes in the scope of consolidation The amount of increase (decrease) in property, plant and equipment through changes in scope of consolidation. Changes in the scope of consolidation - included entities The amount of increase (decrease) in property, plant and equipment resulting from the changes in the scope of consolidation for included entities. Increase (decrease) through change in scope of consolidation for included entities, property, plant and equipment The amount of increase (decrease) in property, plant and equipment resulting from the changes in the scope of consolidation for excluded entities. Increase (decrease) through change in scope of consolidation for excluded entities, property, plant and equipment Changes in the scope of consolidation - excluded entities Increase (decrease) through transfers, property, plant and equipment Reclassification to Proved Mineral Interest Transfers Increase (decrease) through other changes, property, plant and equipment Other changes Office buildings Buildings Mineral exploration wells and plants This member stands for the information pertaining to "Mineral exploration wells and plants". Refining and chemical plants This member stands for the information pertaining to "Refining and chemical plants". Gas pipelines and compression stations This member stands for the information pertaining to "Gas pipelines and compression stations". Power plants Industrial and commercial equipment This member stands for the information pertaining to "Industrial and commercial equipment". Other assets Depreciation rate, property, plant and equipment Description of useful life, property, plant and equipment Suspended exploration wells pending final determination This member stands for the information pertaining to "Suspended exploration wells pending, final determination". Additions to costs for exploratory well that were added during the reporting period pending the determination of proved reserves. Costs For Exploratory Wells Suspended Additions Pending Determination Of Proved Reserves Increases for which is ongoing the determination of proved reserves Amount of costs for exploratory well for which proved reserves were not found at the exploratory well. Costs For Exploratory Wells Suspended charged To Expense Amounts previously capitalized and expensed in the year Reclassification to successful exploratory wells following the estimation of proved reserves Reclassified costs to productive wells on determination of proved reserves. Reclassification To Productive Wells On Determination Of Proved Reserves Disposals Disposals, property, plant and equipment between 1 and 3 years beyond 3 years Oil and Gas Assets Oil and Gas Assets [Axis] Oil And Gas Assets Oil And Gas Assets [Domain] fields including wells drilled over the last 12 months This member stands for the information pertaining to "fields including wells drilled over the last 12 months". fields for which the delineation campaign is in progress This member stands for the information pertaining to "fields for which the delineation campaign in progress". Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest Number of wells. Costs For Exploratory Wells Capitalized And Suspended Number Of Wells This member stands for the information pertaining to "Unproved mineral interest". Unproved mineral interest Congo Turkmenistan Egypt United Arab Emirates INDONESIA Indonesia The increase (decrease) in property, plant and equipment resulting from other than those acquired through business combinations. Increase (decrease) other than through business combinations, property, plant and equipment Additions Increase (decrease) through net exchange differences and other changes property plant and equipment The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity and changes that the entity does not separately disclose in the same statement or note. Currency translation differences and other changes Cash-generating units [axis] Cash-generating units [member] This member stands for proved and unproved mineral interests. Proved and unproved mineral interest Exploration wells in progress This member stands for the information pertaining to "Exploration wells in progress". Petrochemical plants This member stands for the information pertaining to "Petrochemical plants". Petrochemical plants [member] Ganal PSC and Rapak PSC [member] This member stands for the information pertaining to "Ganal PSC and Rapak PSC". Ganal PSC and Rapak PSC [member] Ganal block [member] Ganal block [member] This member stands for the information pertaining to "Ganal block". Rapak block [member] Rapak block [member] This member stands for the information pertaining to "Rapak block". Makassar block [member] Makassar block [member] This member stands for the information pertaining to "Makassar block". Alaska, Gulf of Mexico, Turkmenistan, Italy and Australia This member stands for the information pertaining to "Alaska, Gulf of Mexico, Turkmenistan, Italy and Australia". Alaska, Gulf of Mexico, Turkmenistan, Italy and Australia [member] Oil Prospecting License 245 This member stands for the information pertaining to "Oil Prospecting License 245". Nigeria Government This member stands for the information pertaining to "Nigeria Government". Oando PLC This member stands for the information pertaining to "Oando PLC". Oando PLC [member] Property, plant and equipment by operating lease status [axis] Property, plant and equipment subject to operating leases Capitalized finance expense Borrowing costs capitalised Average Interest rate used for capitalizing finance expense Capitalisation rate of borrowing costs eligible for capitalisation Transfers Increase (decrease) through transfers from construction in progress, property, plant and equipment Property, plant and equipment, pledged as security Government grants Represents the percentage of risk-adjusted weighted average cost of capital. Percentage of Risk-Adjusted Weighted Average Cost Of Capital Risk-adjusted weighted average cost of capital (adjusted WACC) (in percent) Disclosure of quantitative information about right-of-use assets [table] This member stands for Floating production storage and offloading vessels (FPSO). Floating production storage and offloading vessels (FPSO) This member stands for drilling rig. Drilling rig This member stands for Naval facilities and related logistic bases for oil and gas transportation. Naval facilities and related logistic bases for oil and gas transportation This member stands for Motorway concessions and service stations. Motorway concessions and service stations This member stands for oil and gas distribution facilities. Oil and gas distribution facilities Vehicles Other Vessels Aircraft Assets for staff activities This member stands for the information pertaining to "Assets for staff activities". This member stands for upstream business. Upstream business Ghana and Angola This member stands for the information pertaining to "Ghana and Angola". MEXICO Mexico Entities which have been deconsolidated during the period by the reporting entity. Deconsolidated Entities Deconsolidated Entities [member] Disclosure of quantitative information about right-of-use assets [line items] Right-of-use assets Additions Additions to right-of-use assets Depreciation of RoU leased assets Depreciation Depreciation, right-of-use assets The amount of impairment loss recognized in profit or loss for right-of-use assets. Always reported positively in XBRL. Impairment Loss Recognized In Profit Or Loss, Right Of Use Assets Impairments Impairments of RoU leased assets The amount of reversal of impairment loss recognised in profit or loss for right-of-use assets. Reversals Reversal of impairment loss recognised in profit or loss, Right-of-use assets Reversals of RoU leased assets Reversals of RoU leased assets The increase (decrease) in right-of-use assets resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. Increase Decrease Through Net Exchange Differences, Right Of Use Assets Currency translation differences The increase (decrease) in right-of-use assets resulting from change in the scope of consolidation. Changes in the Scope of Consolidation, Right-of-use Assets Changes in the scope of consolidation The increase (decrease) in right-of-use assets resulting from changes that the entity does not separately disclose in the same statement or note. Increase Decrease Through Other Changes, Right Of Use Assets Other changes Lease, term of contract The period of lease, term of contract. Represents the number of aircraft sold and repurchased. Number of Aircraft Sold and Repurchased Number of aircraft sold and repurchased Lease commitment, nominal value The amount of lease commitment, nominal value. Lease commitment, term of contract The period of lease commitment, term of contract. Lease commitment, extension option The period of lease commitment, extension option. Amount of future cash outflows potentially due not reflected in the measurements of lease liabilities due to options for the extension or termination of the lease. Lessee's exposure arising from options for extension or termination of lease for office buildings Lessee's Exposure Arising from Extension Options and Termination Options Lessee's exposure arising from extension options related to service stations for sale of oil products The amount of lessee's exposure arising from service stations for sale of oil products. Amount of lessee's exposure arising from other extension options related to assets. Lessee's Exposure Arising From Other Extension Options Related to Assets Lessee's exposure arising from other extension options related to ancillary assets Schedule disclosing information related to liabilities for leased assets. Disclosure Of Quantitative Information About Liabilities For Leased Assets [Table] Joint operations Liabilities arising from financing activities [axis] This member stands for the information pertaining to "Current portion of long-term lease liabilities". Current portion of long-term lease liabilities This member stands for the information pertaining to "Long-term lease liabilities". Long-term lease liabilities Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. Disclosure Of Quantitative Information About Liabilities For Leased Assets [Line Items] Lease liabilities Lease liabilities Carrying amount - end of the year Carrying amount - beginning of the year Increase through new leases, liabilities arising from financing activities Lease liabilities assumptions Additions Decreases The amount of decreases to lease liabilities. Decreases To Lease Liabilities Decreases Decreases in lease liabilities The increase (decrease) in lease liabilities resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. Increase Decrease Through Net Exchange Differences, Lease Liabilities Currency translation differences Changes in the scope of consolidation Changes in scope of consolidation, lease liabilities The amount of changes in scope of consolidation, lease liabilities. The increase (decrease) in lease liabilities resulting from changes that the entity does not separately disclose in the same statement or note. Increase Decrease Through Other Changes, Lease Liabilities Other changes Cash payments for the principal portion of the lease liabilities Cash Outflow For Leases, Principal Payments The amount of the cash outflow for the principal portion of lease liabilities. Cash payments for the interest portion of lease liabilities Cash Outflow For Leases, Interest Payments The amount of the cash outflow for the interest on lease liabilities. No definition available. Other income and revenues. Other income and revenues Income from remeasurement of lease liabilities The amount of income from remeasurement of lease liability. Other income and revenues Other income and revenues from leases The amount of other income and revenues from leases. No definition available. Purchases, services and other Short-term leases Expense relating to short-term leases for which recognition exemption has been used Low-value leases Expense relating to leases of low-value assets for which recognition exemption has been used Variable lease payments not included in the measurement of lease liabilities Expense relating to variable lease payments not included in measurement of lease liabilities The amount of capitalized direct cost associated with self-constructed tangible assets, relating to purchases, services and other in relation to leases. Capitalized direct cost associated with self-constructed tangible assets, relating to purchases, services and other Capitalized direct cost associated with self-constructed assets - tangible assets The amount of purchases, services and other, relating to leases. Purchases, services and other, relating to leases Purchases, services and other The amount of depreciation and impairment recognised in profit or loss for right-of-use assets. Depreciation and impairments Depreciation and impairment recognised in profit or loss, right-of-use assets Finance income (expense) on leases Finance income (expense) on leases [abstract] Finance income (expense) from leases Interests on lease liabilities Interest expense on lease liabilities Interest expense on lease liabilities The amount of capitalized finance expense of ROU leased assets - tangible assets. Capitalized finance expense of RoU leased assets - tangible assets Capitalised Finance Expense of Right-of Use Leased Assets - Tangible Assets The amount of net exchange differences on lease liabilities recognised in profit or loss. Net currency translation differences on lease liabilities Net exchange differences on lease liabilities recognised in profit or loss The net amount of finance income (cost) arising from leasing activities. Finance Income (Cost) From Leases Finance income (expense) from leases Disclosure of reconciliation of changes in intangible assets and goodwill [table] Classes of intangible assets and goodwill [axis] Intangible assets with definite useful lives This member stands for the information pertaining to "Intangible assets with finite useful lives". Copyrights, patents and other industrial property rights, service and operating rights [member] Other intangible assets with definite useful lives This member stands for the information pertaining to "Other intangible assets with definite useful lives". Goodwill Other intangible assets with indefinite useful lives This member stands for the information pertaining to "Other intangible assets with indefinite useful lives". Intangible assets Disclosure of reconciliation of changes in intangible assets and goodwill [line items] Additions Additions other than through business combinations, intangible assets other than goodwill Impairment loss recognised in profit or loss, intangible assets and goodwill Impairments Reversals Reversal of impairment loss recognised in profit or loss, intangible assets other than goodwill Write-off Write-off Retirements, intangible assets and goodwill Increase (decrease) through changes in scope of consolidation, intangible assets and goodwill The amount of increase (decrease) in intangible assets and goodwill through changes in scope of consolidation. Changes in the scope of consolidation Currency translation differences Increase (decrease) through net exchange differences, intangible assets and goodwill Increase (decrease) through other changes, intangible assets and goodwill Other changes Disclosure of detailed information about intangible assets [table] Proved licence and leasehold property acquisition costs This member stands for the information pertaining to "Proved licence and leasehold property". Unproved licence and leasehold property acquisition costs This member stands for the information pertaining to "Unproved licence and leasehold property". Other mineral interests This member stands for the information pertaining to "Other mineral interests". Intangible assets Disclosure of detailed information about intangible assets [line items] This member stands for the information pertaining to "Transport rights of natural gas". Transport rights of natural gas Concessions, licenses, trademarks and similar items This member stands for the information pertaining to "Concessions, licenses, trademarks and similar items, other than transport of natural gas". Other concessions, licenses, trademarks and similar items Industrial patents and intellectual property rights This member stands for the information pertaining to "Industrial patents and intellectual property right". Capitalized costs for customer acquisition Other intangible assets Description of useful life, intangible assets other than goodwill Amortisation rate, intangible assets other than goodwill Enilive and Refining This member stands for the information pertaining to "Enilive and Refining" business line. Enilive and Refining [member] Goodwill Goodwill. Concessions, licenses, trademarks and similar items This member stands for the information pertaining to "Concessions, licenses, trademarks and similar items". Customer relationship Intangible assets in progress CGU Domestic-Foreign Market This member stands for the information pertaining to "CGU Domestic-Foreign Market". Be Power This member stands for the information pertaining to "Be Power". Aldro Energa Y Soluciones SLU This member stands for the information pertaining to "Aldro Energa Y Soluciones SLU". This member stands for Finproject SpA. Finproject SpA This member stands for the information pertaining to "Eni Gas and Power France SA". Eni Gas and Power France SA SKGR Energy Single Member SA [member] This member stands for the information pertaining to "SKGR Energy Single Member SA". SKGR Energy Single Member SA SKGR Energy Single Member SA (now Eni Plenitude Renewables Hellas Single Member SA) PLT (PLT Energia Srl e SEF Srl) PLT Energia Srl and SEF Srl This member stands for the information pertaining to "PLT Energia Srl and SEF Srl". PLT Energia Srl and SEF Srl [member] Energia Eolica Boreas SLU [member] This member stands for the information pertaining to "Energia Eolica Boreas SLU". Energia Eolica Boreas SLU This member stands for minorities of Italgas. Minorities of former Italgas Minorities of former Italgas This member stands for the information pertaining to "Local Italian companies synergic to main areas of activity". Local Italian companies synergic to main areas of activity Local Italian companies synergic to main areas of activity This member stands for the information pertaining to "Retail sale of natural gas and electricity business of Plenitude". Retail sale of natural gas and electricity business of Plenitude Retail sale of natural gas and electricity business of Plenitude [Member] This member stands for the information pertaining to "Renewables business of Plenitude". Renewables business of Plenitude Renewables business of Plenitude [Member] This member stands for the information pertaining to "E-mobility business of Plenitude". E-mobility business of Plentitude E-mobility business of Plenitude [Member] Information by purchase price allocation for business combination. Purchase Price Allocation [Axis] Purchase price allocation name for business combination. Purchase Price Allocation [Domain] This member stands for the information pertaining to "Definitive allocation" of purchase price for business combination. Definitive allocation Definitive Allocation [Member] Eni Corridor Srl This member stands for the information pertaining to "Eni Corridor Srl". Eni Corridor Srl [member] Intangible assets other than goodwill The latest period of operations are being developed by the reporting entity through business combinations. Latest period of operations are being developed Latest period of operations are being developed Expected percentage of reduction in power prices (as a percent) The expected percentage of reduction in power prices. Expected percentage of reduction in power prices Period over which management has projected cash flows The period over which management has projected cash flows. Growth rate used to extrapolate cash flow projections Discount rate applied to cash flow projections (as a percent) Discount rate applied to cash flow projections Discount rate Amount recognized for few assets which were marked to their lower recoverable values due to downward reserves revisions and costs updates Amount by which unit's recoverable amount exceeds its carrying amount Decrease of intangible assets Increase (decrease) in intangible assets and goodwill Oil and Gas, Average Sale Price and Production Cost Per Unit [Table] Scenario [Axis] Scenario [Domain] Long-term price of the Brent crude oil benchmark Long Term Assumption For Benchmark Brent Price The element represent about long term assumption for benchmark Brent price. Long-term gas price (in Dollars per Millions of BTU) Long-term gas price Long Term Assumption For Benchmark Gas Price The element represent about long term assumption for benchmark gas price. Disclosure of information for cash-generating units [table] This member stands for Eni's scenario. Eni's scenario This member stands for IEA NZE 2050 scenario. IEA NZE 2050 scenario Eni's scenario with +1% increase in WACC Eni scenario with plus 1 percent increase weighted average cost of capital [member] This member stands for the information pertaining to "Eni's scenario with +1% increase in WACC". Europe Impairment Disclosure of information for cash-generating units [line items] Represents the value in use of CGU percentage with taxation and Co2 charges. Value in Use Percentage with Taxation and Co2 Charges Value in use of the O&G CGUs Headroom vs Carrying amount, tax-deductible CO2 charges Represents the value in use of CGU percentage without taxation and Co2 charges. Value in Use Percentage without Taxation and Co2 Charges Value in use of the O&G CGUs Headroom vs Carrying amount, non-tax deductible CO2 charges Net Increase (Decrease) in Sales and Transfer Prices and Production Costs Possible impairments The element represents cost of CO2. Cost of CO2 Cost CO2 Amount of write-down of the residual book value of the refineries and the joint operations Impairment loss Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Table] Reversals (Impairments) of tangible and intangible assets and right-of-use assets Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] Carrying amount Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows Sensitivity Future Net Cash Flows Relating to Proved Oil and Gas Reserves, 10 Percent Annual Discount for Estimated Timing of Cash Flows The amount representing estimated future accumulated cash outflow for tax-deductible CO2 charges to be incurred in producing proved oil and gas reserves. Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Tax-deductible CO2 Charges Tax-deductible CO2 charges The amount representing estimated future accumulated cash outflow for non tax-deductible CO2 charges to be incurred in producing proved oil and gas reserves. Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Non Tax-deductible CO2 Charges Non tax-deductible CO2 charges Future net cash flows relating to proved oil and gas reserves weighted average cost of capital for estimated timing of cash flows Sensitivity The amount representing estimated future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a weighted average cost of capital. Disclosure Of Impairment Of Assets Explanatory [Table] Disclosure Of Impairment Of Assets Explanatory [Table] Congo, Egypt, USA and Algeria [Member] This member stands for the information pertaining to "Congo, Egypt, USA and Algeria". Congo, Egypt, USA and Algeria ALASKA Disclosure Of Impairment Of Assets Explanatory [Line Item] Disclosure Of Impairment Of Assets Explanatory [Line Items] Impairment review of tangible and intangible assets and right-of-use assets Post-tax, risk-adjusted WACC (in percent) Weighted Average Cost Of Capital Post-Tax Rate Percentage The percentage of weighted average cost of capital post-tax rate percentage. Represents the post-tax, risk-adjusted WACC if the reversal of impairment loss more than $100 million. Weighted Average Cost Of Capital Post Tax Rate Percentage If Reversal of Impairment Loss More Than 100 Million Risk-adjusted post-tax WACC if reversal of more than $100 million Represents the pre tax percentage of weighted average cost of capital. Weighted Average Cost Of Capital Pre Tax Rate Percentage Risk-adjusted pre-tax WACC Represents the percentage by which headroom is higher than book value. Percentage By which Headroom is Higher Than Book Value Percentage by which headroom is higher than book value Brent price per bbl, one year forecast The brent price per bbl for year one forecast. Brent price per bbl, year two forecast The brent price per bbl for year two forecast. Spot gas benchmark European reference price, one year forecast The spot gas benchmark european reference price for one year forecast. Spot gas benchmark European reference price, year two forecast The spot gas benchmark european reference price for year two forecast. Represents the percentage of estimated cost of equity. Estimated Percentage of Cost of Equity Estimated cost of equity (in percent) Property, plant and equipment, residual value The amount representing residual value of property, plant and equipment related to Oil and gas assets. Property, Plant and Equipment, Oil and Gas Assets Residual Value Refineries Book Value The amount representing book value of refineries related to Oil and gas assets. Book value of refineries Disclosure Of Investments Disclosure Of Investments [Table] Investments in unconsolidated entities controlled by Eni Joint ventures Associates Disclosure Of Investments Disclosure Of Investments [Line Items] Investments The amount of additions and subscriptions to investments accounted for using equity method. Additions And Subscriptions In Investments Accounted For Using Equity Method Additions and subscriptions The amount of divestments and reimbursements of investments accounted for using equity method. Divestments And Reimbursement In Investments Accounted For Using Equity Method Divestments and reimbursements Divestments and reimbursements It represents the share of profit of equity accounted investments. Share Of Profit Of Equity Accounted Investments Share of profit of equity-accounted investments It represents the share of loss of equity accounted investments. Share Of Loss Of Equity Accounted Investments Share of loss of equity-accounted investments Share of loss of equity-accounted investments It represents the deduction for dividends. Deduction For Dividends Deduction for dividends Deduction for dividends Change in the scope of consolidation Changes in the scope of consolidation Changes In Scope Of Consolidation It represents the changes in scope of consolidation. The increase (decrease) through net exchange differences investments using equity method. Increase Decrease Through Net Exchange Differences Investments Using Equity Method Currency translation differences The increase (decrease) in investments using equity method resulting from changes that the entity does not separately disclose in the same statement or note. Increase Decrease In Investments Using Equity Method Resulting From Other Changes Other changes Unconsolidated subsidiaries [axis] Associates [axis] Eni BTC Ltd This member stands for the information pertaining to "Eni BTC Ltd". Var Energi ASA This member stands for the information pertaining to "Var Energi ASA". This member stands for the information pertaining to "Cardon IV SA". Cardon IV SA This member stands for the information pertaining to "Azule Energy Holdings Ltd". Azule Energy Holdings Ltd Azule Energy Holdings Ltd This member stands for the information pertaining to "St. Bernard Renewables Llc". St. Bernard Renewables Llc St. Bernard Renewables Llc [member] This member stands for the information pertaining to "Saipem SpA". Saipem SpA This member stands for the information pertaining to "Vårgrønn AS". Vårgrønn AS Vargronn AS [member] GreenIT SpA This member stands for the information pertaining to "GreenIT SpA". GreenIT SpA [member] Lotte Versalis Elastomers Co Ltd This member stands for the information pertaining to "Lotte Versalis Elastomers Co Ltd". This member stands for the information pertaining to "Hergo Renewables SpA". Hergo Renewables SpA Hergo Renewables SpA [member] This member stands for the information pertaining to "LabAnalysis Environmental Scienze Srl". LabAnalysis Environmental Scienze Srl LabAnalysis Environmental Scienze Srl [member] Societa Oleodotti Meridionali - SOM SpA This member stands for the information pertaining to "Societa Oleodotti Meridionali - SOM SpA". Union Fenosa Gas SA Union Fenosa Gas SA This member stands for the information pertaining to "Union Fenosa Gas SA". Abu Dhabi Oil Refining Company (TAKREER) Abu Dhabi Oil Refining Co (Takreer) This member stands for Abu Dhabi Oil Refining Co. This member stands for the information pertaining to "QatarEnergy LNG NFE (5)". QatarEnergy LNG NFE (5) QatarEnergy LNG NFE (5) [member] This member stands for the information pertaining to "Commonwealth Fusion Systems Llc". Commonwealth Fusion Systems Llc Commonwealth Fusion Systems Llc [member] Coral FLNG SA This member stands for the information pertaining to "Coral FLNG SA". Novamont SpA This member stands for the information pertaining to "Novamont SpA". ADNOC Global Trading Ltd This member stands for the information pertaining to "ADNOC Global Trading Ltd". This member stands for Novis Renewables Holdings Llc. Novis Renewables Holdings Llc Bluebell Solar Class A Holdings II LlC This member stands for the information pertaining to "Bluebell Solar Class A Holdings II LlC". United Gas Derivatives Co This member stands for the information pertaining to "United Gas Derivatives Co". Angola LNG Ltd This member stands for the information pertaining to "Angola LNG Ltd". Other investments This member stands for the information pertaining to "equity accounted investments". Altre Proportion of voting rights held in subsidiary % of the investment in subsidiary Eni's % of the investment % of the investment in joint venture Proportion of voting rights held in joint venture Proportion of voting rights held in associate Eni's % of the investment Eni's % of the investment % of the investment in associate This member stands for the information pertaining to "Qatar Liquefied Gas Company Limited 9". Qatar Liquefied Gas Company Limited (9) Qatar Liquefied Gas Company Limited 9 [member] Qatar Liquefied Gas Co Ltd (9) Number of ordinary shares held Number Of Shares Held In The Entities Represents the number of shares held in entities. The price per share. Price Per Share Share price Fair value of investments in associates for which there are quoted market prices Market value of associate The amount of additions to investments other than investments accounted for using equity method. Additions And Subscriptions In Investments Other Than Investments Accounted For Using Equity Method Additions and subscriptions The amount of change in the fair value to investments other than investments accounted for using the equity method. Change In The Fair Value In Investments Other Than Investments Accounted For Using Equity Method Change in the fair value with effect to OCI The increase (decrease) through net exchange differences investments other than investments accounted for using equity method resulting from changes that the entity does not separately disclose in the same statement or note. Increase Decrease Through Net Exchange Differences Investments Other Than Investments Accounted For Using Equity Method Currency translation differences Other changes of other investments Other changes Increase Decrease In Investments Other Than Investments Accounted For Using Equity Method Resulting From Other Changes The increase (decrease) in investments other than investments accounted for using equity method resulting from other changes that the entity does not separately disclose in the same statement or note. The amount of divestments and reimbursements to investments other than investments accounted for using equity method. Divestments And Reimbursement In Investments Other Than Investments Accounted For Using Equity Method Divestments and reimbursements UK Dogger Bank A, B and C projects UK Dogger Bank This member stands for the information pertaining to "UK Dogger Bank". Doggerbank Offshore Wind Farm Project 3 Holdco Ltd This member stands for the information pertaining to "Doggerbank Offshore Wind Farm Project 3 Holdco Ltd". Doggerbank Offshore Wind Farm Project 3 Holdco Ltd [member] Types Of Investments Types Of Investments [Axis] Types Of Investments Types Of Investments [Domain] North Field East project (NFE) This member stands for the information pertaining to "North Field East project (NFE)". North Field East project [member] This member stands for Nigeria Lng Ltd. Nigeria LNG Ltd This member stands for Saudi European petrochemical co. Saudi European Petrochemical Co Darwin LNG Pty Ltd [member] This member stands for the information pertaining to "Darwin LNG Pty Ltd". Darwin LNG Pty Ltd Proportion of ownership interest acquired (as a percent) The percentage of proportion of ownership interest acquired. Proportion of ownership interest acquired The difference amount between purchase price of interest acquired and book value of corresponding fraction of net equity. Difference amount between purchase price of interest acquired and book value of corresponding fraction of net equity Percentage of reasonable changes in cost of capital Percentage of reasonably possible increase in unobservable input, assets Payment of advances for the purchase of equity investments Additions to investments other than investments accounted for using equity method, payment of advances The amount of additions through payment of advances to investments other than investments accounted for using equity method. % ownership interest Proportion of ownership interest in associate Liquefaction plant production capacity per annum The production capacity per annum of a multi-train liquefaction plant. Liquefaction plant production capacity per annum Proportion of Ownership Interest Divested in Equity Method Investment The percentage of proportion of ownership interest divested in equity method investment. Proportion of ownership interest divested in equity method investment The difference amount between market capitalization of investee and book value of corresponding fraction of net equity. Difference amount between market capitalization of investee and book value of corresponding fraction of net equity Difference Amount between Market Capitalization of Investee and Book Value of Corresponding Fraction of Net Equity Disclosure of financial assets explanatory. Disclosure Of Financial Assets Explanatory [Table] This member stands for the information pertaining to "Financing receivables held for operating and non operating purpose". Financing receivables held for operating and non operating purpose This member stands for the information pertaining to "Financing receivables held for operating purposes". Financing receivables held for operating purposes This member stands for the information pertaining to "Long-term financing receivables held for operating purposes". Long-term financing receivables held for operating purposes This member stands for the information pertaining to "Short-term financing receivables held for operating purposes". Short-term financing receivables held for operating purposes This member stands for the information pertaining to "Financing receivables held for non operating purpose". Financing receivables held for non operating purpose Represent the securities held for operating purposes. Securities held for operating purposes Disclosure Of Financial Assets Explanatory. Disclosure Of Financial Assets Explanatory [Line Items] Other financial assets Currency translation differences Increase (decrease) through foreign exchange, financial assets This member stands for the information pertaining to "Quoted bonds issued by sovereign states, Fixed rate bonds". Quoted bonds issued by sovereign states, Fixed rate bonds This member stands for the information pertaining to "Quoted bonds issued by sovereign states, Floating rate bonds". Quoted bonds issued by sovereign states, Floating rate bonds This member stands for the information pertaining to "European Bank of Investments". European Bank of Investments European Bank of Investments [member] Amortized cost Foreign (outside Italy) Amortized cost Amortized cost. It represent the financial assets, nominal rate of return of securities. Nominal rate of return (%) The maturity date of the securities. Maturity date Maximum value of sovereign states bonds included in other category The amount of maximum value of sovereign states bonds included in other category. This member stands for the information pertaining to "Non-current financing receivables held for operating purposes". Non-current financing receivables held for operating purposes Other financial assets Other financial assets. The amount of amount of restricted deposits in escrow to guarantee transactions on derivative contracts. Restricted deposits in escrow to guarantee transactions on derivative contracts Restricted Deposits In Escrow To Guarantee Transactions On Derivative Contracts Bank deposits Short-term deposits, not classified as cash equivalents Financial assets pledged as collateral for liabilities or contingent liabilities Maturity of securities held for operating purposes The period of maximum value of sovereign states bonds included in other category. Trade payables Current trade payables Down payments and advances from joint ventures in exploration and production activities The amount of down payments and advances from joint ventures in exploration and production activities. Payables for purchase of non-current assets Current payables for purchase of non-current assets The amount of payables due to partners in exploration & production activities. Payables Due To Partners In Exploration And Production Activities Payables due to partners in exploration & production activities Other payables Other current payables Disclosure Of Trade And Other Payables Disclosure Of Trade And Other Payables [Table] No definition available. Disclosure Of Trade And Other Payables Explanatory [Line Items] Trade and other payables Increase (decrease) in trade payables The amount of increase (decrease) in trade payables. Payroll payables Short-term employee benefits accruals The amount of current payables to factoring companies in relation to the tax credit transfer accrued on the basis of the Ecobonus and Superbonus measures. Payables to factoring companies in relation to the tax credit transfer accrued on the basis of the Ecobonus and Superbonus measures Current payables to factoring companies in relation to tax credit transfer accrued on basis of Ecobonus and Superbonus measures Payables for social security contributions Current payables on social security The amount of current payables on social security. Miscellaneous other payables The amount of miscellaneous other current payables. Miscellaneous other current payables Banks This member stands for the information pertaining to "Banks". Ordinary bonds Ordinary Bonds This member stands for the information pertaining to "Ordinary Bonds". Convertible bonds Convertible Bonds This member stands for the information pertaining to "Convertible Bonds". Commercial papers This member stands for the information pertaining to "Commercial papers". This member stands for the information pertaining to "Sustainability-linked convertible bonds". Sustainability-linked convertible bonds Sustainability-linked convertible bonds [member] Other financial institutions This member stands for the information pertaining to "Other financial institutions". Total borrowings Financing payables Borrowings ENI SpA Eni Finance International SA This member stands for the information pertaining to "Eni Finance International SA". Eni USA Inc This member stands for the information pertaining to "Eni USA Inc". Eni PLT Wind 2022 SpA Eni PLT Wind 2022 SpA [Member] This member stands for the information pertaining to "Eni PLT Wind 2022 SpA". SEF Srl [Member] This member stands for the information pertaining to "SEF Srl". SEF Srl Represents the information about CEF3 Wind Energy SpA. CEF3 Wind Energy SpA Euro Medium Term Notes, Ordinary Bonds with sustainability-linked bonds Euro Medium Term Notes, Ordinary Bonds with sustainability-linked bonds [member] This member stands for the information pertaining to "Euro Medium Term Notes, Ordinary Bonds with sustainability-linked bonds". Euro Medium Term Notes One This member stands for the information pertaining to "Euro Medium Term Notes One". Euro Medium Term Notes Two This member stands for the information pertaining to "Euro Medium Term Notes Two". Euro Medium Term Notes Three This member stands for the information pertaining to "Euro Medium Term Notes Three". Euro Medium Term Notes Four This member stands for the information pertaining to "Euro Medium Term Notes Four". Euro Medium Term Notes Five This member stands for the information pertaining to "Euro Medium Term Notes Five". Euro Medium Term Notes Six This member stands for the information pertaining to "Euro Medium Term Notes Six". Euro Medium Term Notes Seven This member stands for the information pertaining to "Euro Medium Term Notes Seven". Euro Medium Term Notes Eight This member stands for the information pertaining to "Euro Medium Term Notes Eight". Euro Medium Term Notes Nine This member stands for the information pertaining to "Euro Medium Term Notes Nine". Euro Medium Term Notes Ten This member stands for the information pertaining to "Euro Medium Term Notes Ten". Euro Medium Term Notes Eleven This member stands for the information pertaining to "Euro Medium Term Notes Eleven". Euro Medium Term Notes Twelve This member stands for the information pertaining to "Euro Medium Term Notes Twelve". Euro Medium Term Notes Thirteen This member stands for the information pertaining to "Euro Medium Term Notes Thirteen". Euro Medium Term Notes Fourteen This member stands for the information pertaining to "Euro Medium Term Notes Fourteen". Euro Medium Term Notes Fifteen This member stands for the information pertaining to "Euro Medium Term Notes Fifteen". Euro Medium Term Notes Sixteen This member stands for the information pertaining to "Euro Medium Term Notes Sixteen". Euro Medium Term Notes Seventeen This member stands for the information pertaining to "Euro Medium Term Notes Seventeen". This member stands for the information pertaining to "Euro Medium Term Notes Eighteen". Euro Medium Term Notes Eighteen Euro Medium Term Notes Eighteen [member] This member stands for the information pertaining to "Euro Medium Term Notes Nineteen". Euro Medium Term Notes Nineteen Euro Medium Term Notes Nineteen [member] This member stands for the information pertaining to "Euro Medium Term Notes Twenty". Euro Medium Term Notes Twenty Euro Medium Term Notes Twenty [member] This member stands for the information pertaining to "Euro Medium Term Notes Twenty One". Euro Medium Term Notes Twenty One Euro Medium Term Notes Twenty One [member] Euro Medium Term Notes Twenty Two Euro Medium Term Notes Twenty Two [member] This member stands for the information pertaining to "Euro Medium Term Notes Twenty Two". Euro Medium Term Notes Twenty Three This member stands for the information pertaining to "Euro Medium Term Notes Twenty Three". Euro Medium Term Notes Twenty Three [member] Euro Medium Term Notes Twenty Four [member] Euro Medium Term Notes Twenty Four This member stands for the information pertaining to "Euro Medium Term Notes Twenty Four". Other bonds One This member stands for the information pertaining to "Other bonds One". Other bonds Two This member stands for the information pertaining to "Other bonds Two". Other bonds Three This member stands for the information pertaining to "Other bonds Three". This member stands for the information pertaining to "Other bonds Four". Other bonds Four Other bonds Five This member stands for the information pertaining to "Other bonds Five". Other bonds Six This member stands for the information pertaining to "Other bonds Six". Borrowings, original currency Borrowings, maturity Borrowings, interest rate (as a percent) Borrowings, interest rate Borrowings, interest rate description The description of interest rate of borrowings obtained. Borrowings, interest rate description Components of debt, financial liabilities [member] of which financial liabilities This member stands for the information pertaining to "Components of debt, financial liabilities". Components of debt, equity [member] of which equity This member stands for the information pertaining to "Components of debt, equity". Long-term debt with current portion of long-term Long term debt and current portion of long-term debt This member stands for the information pertaining to "Long-term debt and current portion of long-term debt". Long-term debt and current portion of long-term debt Average Weighted average [member] Utilisation Status [Axis] Information by utilisation status for borrowings. Utilisation Status [Axis] Utilisation Status [Domain] Utilisation Status [Domain] Classification of utilisation status for borrowings. This member stands for the information pertaining to "Unused" status for borrowings. Unused [member] Undrawn Drawn Used [member] This member stands for the information pertaining to "Used" status for borrowings. Sustainability-linked credit facilities [member] Sustainability-linked credit facilities This member stands for the information pertaining to "Sustainability-linked credit facilities". Other borrowing facilities [member] Other borrowing facilities This member stands for the information pertaining to "Other borrowing facilities". Type of borrowings Type of borrowings [Axis] Type of borrowings Type of borrowings [Domain] Committed borrowing facilities This member stands for the information pertaining to "Committed borrowing facilities". Borrowing facilities The amount of borrowing facilities which includes but not limited to undrawn or drawn facilities. This member stands for the information pertaining to "Long-term and current portion of long-term ordinary bonds and Sustainability-Linked Bond". Long-term and current portion of long-term ordinary bonds and Sustainability-Linked Bond [member] Long-term and current portion of long-term ordinary bonds and sustainability-linked bond Long-term and current portion of long-term convertible sustainability-linked bonds This member stands for the information pertaining to "Long-term and current portion of long-term convertible sustainability-linked bonds". Long-term and current portion of long-term convertible sustainability-linked bonds Long-term and current portion of long-term bank debt This member stands for the information pertaining to "Long-term and current portion of long-term bank debt". Long-term and current portion of long-term debt with other financial institutions This member stands for the information pertaining to "Long-term and current portion of long-term debt with other financial institutions". Financial liabilities, at fair value Long-term and current portion of long-term lease liabilities Carrying amount at beginning Carrying amount at end Liabilities arising from financing activities Cash flows Increase (decrease) through financing cash flows, liabilities arising from financing activities Currency translation differences Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities Changes in the scope of consolidation Other non-monetary changes Increase (decrease) through other changes, liabilities arising from financing activities Sustainability-linked contracts with banks This member stands for the information pertaining to "Sustainability-linked contracts with banks". Sustainability-linked bonds for retail investors [member] Sustainability-linked bonds for retail investors This member stands for the information pertaining to "Sustainability-linked bonds for retail investors". Euro Medium Term Notes, Ordinary sustainability-linked bonds Euro Medium Term Notes, Ordinary sustainability-linked bonds [member] This member stands for the information pertaining to "Euro Medium Term Notes, Ordinary sustainability-linked bonds". Euro Medium Term Notes, Ordinary sustainability-linked bonds, one Not later than 18 months This member stands for the information pertaining to "Not later than 18 months". Increase (decrease) in finance debts Increase (decrease) in finance debts The amount of increase (decrease) in finance debts. The amount of debts subjected to covenants. Debts Subjected To Covenants Debts subjected to covenants Bond conversion price The conversion price of bond issued. The percentage of bond premium with respect to share reference price at date of issuance. Bond premium with respect to share reference price at date of issuance Bond premium with respect to share reference price at date of issuance (as a percent) Bond expiry Bond Expire Period The expiration period of bond. Renewable energy capacity target The renewable energy capacity target. It represents the maximum amount issuable. Maximum Amount Issuable Maximum amount issuable Undrawn borrowing facilities The increase (decrease) in liabilities from financing activities resulting from obtaining or losing control of subsidiaries or other businesses. Increase Decrease Through Scope Of Consolidation From Financial Activities Changes in the scope of consolidation Proceeds from issue of bonds Proceeds from issue of bonds The cash inflow from the issuing of bonds. Number of bonds The number of bonds issued. Net carbon footprint upstream target by year end 2025 Net carbon footprint upstream target by year end 2025 Nominal mass used to calculate net carbon footprint upstream target by year end 2025. Renewable energy capacity target by year end 2025 Renewable energy capacity target by year end 2025 The renewable energy capacity target by year end 2025. Net carbon footprint upstream target by year end 2024 Net carbon footprint upstream target by year end 2024 Nominal mass used to calculate net carbon footprint upstream target by year end 2024. Percentage of par value of bonds (as a percent) Percentage of par value of bonds The percentage of par value of bonds issuable. The percentage of annul fixed coupon rate of the bonds issuable. Annual fixed coupon rate of bonds (as a percent) Annual fixed coupon rate of bonds The reference price of bond issued. Bond reference price The discount rates used to measure fair value of financial debt. Discount rates used to measure fair value of financial debt Trade payables on which payment term extensions have been negotiated The increase (decrease) in liabilities arising from financing activities resulting from changes in trade payables. Increase (decrease) through changes in trade payables, liabilities arising from financing activities Disclosure Of Borrowings Disclosure Of Information on net borrowings [Table] Disclosure Of Borrowings Explanatory Disclosure Of Information on net borrowings [Line Items] Borrowings A. Cash Cash B. Cash equivalents Cash equivalents C. Other current financial assets Current financial assets other and cash and cash equivalents The amount of current financial assets other and cash and cash equivalents. The sum of cash and cash equivalents, held-for-trading financial assets and available-for-sale financial assets. Liquidity D Liquidity (A+B+C) E. Current financial debt Current financial debt The amount of current financial debt. F. Current portion of non-current financial debt Current portion of non-current financial debt The amount of current portion of non-current financial debt. H. Net current financial indebtedness (G-D) Net Current Financial Indebtedness The amount of net current financial indebtedness. I. Non-current financial debt Non-current financial debt The amount of non-current financial debt. J. Debt instruments Debt instruments issued M. Total financial indebtedness (H+L) Financial indebtedness The amount of financial indebtedness. Disclosure of other provisions [table] Classes of other provisions [axis] Provisions for site restoration, abandonment and social projects Environmental provisions Provisions for litigations Provisions for taxes other than income taxes This member stands for the information pertaining to "Loss adjustments and actuarial provisions". Loss adjustments and actuarial provisions for Eni's insurance companies This member stands for the information pertaining to "Provisions for losses on investments". Provisions for losses on investments This member stands for the information pertaining to "Provisions for Everen insurance cover". Provisions for Everen (ex OIL) insurance cover Provisions for Everen (ex OIL) insurance cover Provisions for redundancy incentives This member stands for the information pertaining to "Provisions for redundancy incentives". Miscellaneous other provisions Provisions Disclosure of other provisions [line items] New or increased provisions New provisions, other provisions The amount of initial recognition and changes in estimates. Initial recognition and changes in estimates Initial recognition and changes in estimates Increase through adjustments arising from passage of time, other provisions Accretion discount Reversal of utilized provisions Provision used, other provisions Reversal of unutilized provisions Unused provision reversed, other provisions Increase (decrease) through net exchange differences, other provisions Currency translation differences The amount of increase (decrease) in other long-term provisions resulting from the changes in scope of consolidation. Increase (decrease) through change in scope of consolidation, other long-term provisions Change in scope of consolidation Increase (decrease) through transfers and other changes, other provisions Other changes Disclosure of Other Provisions Contingent Liabilities and Contingent Assets Explanatory. Disclosure of Other Provisions Contingent Liabilities and Contingent Assets Explanatory [Table] This member stands for estimated costs for social projects to be incurred by the company. Estimated costs for social projects Provisions for site restoration [Member] Provisions for site restoration This member stands for a provision relating to restoration and rehabilitation costs. Provisions for site abandonment [Member] This member stands for a provision relating to abandonment costs. Provisions for site abandonment Provisions for site restoration and abandonment Provisions for site restoration and abandonment [Member] This member stands for a provision relating to restoration and abandonment costs. This member stands for a provision relating to current groundwater remediation activities related costs. Provisions for current groundwater remediation activities Provisions for current groundwater remediation activities [Member] Provisions for refining plants, depots, fuel distribution systems and oil pipelines [member] This member stands for the information pertaining to "Provisions for refining plants, depots, fuel distribution systems and oil pipelines". Provisions for refining plants, depots, fuel distribution systems and oil pipelines Provisions for remediation activities at petrochemical plants Provisions for remediation activities at petrochemical plants [member] This member stands for the information pertaining to "Provisions for remediation activities at petrochemical plants". This member stands for the information pertaining to "Syndial SpA". Eni Rewind SpA This member stands for the information pertaining to "ISAF SpA". ISAF SpA Basilicata region This member stands for the information pertaining to "Basilicata region". Basilicata region [member] Disclosure of other Provisions Contingent Liabilities and Contingent Assets Explanatory. Disclosure of other Provisions Contingent Liabilities and Contingent Assets Explanatory [Line Items] Provisions Period to incur expenditures The expected period to incur expenditures associated with decommissioning operations. Threshold period to start utilizations essentially The threshold period to start utilization of provisions essentially. Threshold period to start utilizations essentially Reinsurance receivables Reinsurance contracts held that are assets Period for charging increased insurance premiums The period for charging increased insurance premiums. Short-term portion of the risk provisions Current provision for decommissioning, restoration and rehabilitation costs Disclosure Of Benefit Plans [Table] Defined benefit plans [axis] Defined benefit plan Italian defined benefit plans This member stands for the information pertaining to "Italian defined benefit plans". This member stands for the information pertaining to "Foreign defined benefit plan". Foreign defined benefit plan This member stands for the information pertaining to "Supplementary Medical Reserve for Eni Managers FISDE and other Foreign Medical Plans.". FISDE and other foreign medical plans Other Benefit Plans [Axis] Other Benefit Plans [Member] This member stands for the information pertaining to "Other Benefit Plans". This member stands for the information pertaining to "Other foreign Long-term benefit plans". Other benefit plans Disclosure Of Benefit Plans [Line Items] Disclosure Of Liability Asset Of Benefit Plans [Table] Net defined benefit liability (asset) [axis] Present value of benefit liabilities Plan assets Asset ceiling Disclosure Of Liability Asset Of Benefit Plans [Line Items] Net defined benefit liability (asset) Net defined benefit liability (asset) at beginning of year Net defined benefit liability (asset) at end of year Net defined benefit liability (asset) Current service cost, net defined benefit liability (asset) Current service cost Interest expense (income), net defined benefit liability (asset) Interest cost/income Return on plan assets, net defined benefit liability (asset) Return on plan assets Remeasurements: Gain (loss) on remeasurement, net defined benefit liability (asset) - actuarial (gains) losses due to changes in demographic assumptions Actuarial gains (losses) arising from changes in demographic assumptions, net defined benefit liability (asset) - actuarial (gains) losses due to changes in financial assumptions Actuarial gains (losses) arising from changes in financial assumptions, net defined benefit liability (asset) - experience (gains) losses Actuarial gains (losses) arising from experience adjustments, net defined benefit liability (asset) Past service cost and (gains) losses settlements Past service cost and gains (losses) arising from settlements, net defined benefit liability (asset) Contributions to plan, net defined benefit liability (asset) Plan contributions: - employee contributions Contributions to plan by plan participants, net defined benefit liability (asset) - employer contributions Contributions to plan by employer, net defined benefit liability (asset) Payments from plan, net defined benefit liability (asset) Benefits paid The increase (decrease) in the net defined benefit liability (asset) resulting from reclassification to liabilities directly associated with assets held for sale. Reclassification to liabilities directly associated with assets held for sale Increase (decrease) in net defined benefit liability (asset) resulting from reclassification to liabilities directly associated with assets held for sale Represent the Increase decrease through changes in foreign exchange rates and other changes net defined benefit liability asset. Increase Decrease Through Changes In Foreign Exchange Rates And Other Changes Net Defined Benefit Liability Asset Currency translation differences and other changes Change in asset ceiling Increase (decrease) in net defined benefit liability (asset) Net benefit liability (asset) Net benefit liability (asset) at beginning of year Net benefit liability (asset) at end of year Liability (asset) of benefit plans The amount of liability (asset) of benefit plans. Current service cost Current service cost, net benefit liability (asset) The amount of current service cost for net benefit liability (asset). Interest cost/income Interest expense (income), net benefit liability (asset) The amount of interest expense (income) for net benefit liability (asset). Return on plan assets Return on plan assets, net benefit liability (asset The amount of return on plan assets for net benefit liability (asset). Remeasurements: Gain (loss) on remeasurement, net benefit liability (asset) The amount of gain (loss) on remeasurement for net benefit liability (asset). - actuarial (gains) losses due to changes in demographic assumptions Actuarial gains (losses) arising from changes in demographic assumptions, net benefit liability (asset) The amount of actuarial gains (losses) arising from changes in demographic assumptions for net benefit liability (asset). - actuarial (gains) losses due to changes in financial assumptions Actuarial gains (losses) arising from changes in financial assumptions, net benefit liability (asset) The amount of actuarial gains (losses) arising from changes in financial assumptions for net benefit liability (asset). Actuarial gains (losses) arising from experience adjustments, net benefit liability (asset) The amount of actuarial gains (losses) arising from experience adjustments for net benefit liability (asset). - experience (gains) losses Past service cost and gains (losses) arising from settlements, net benefit liability (asset) Past service cost and (gains) losses settlements The amount of past service cost and gains (losses) arising from settlements for net benefit liability (asset). Plan contributions: Contributions to plan, net benefit liability (asset) The amount of contributions to plan for net benefit liability (asset). The amount of contributions to plan by plan participants for net benefit liability (asset). - employee contributions Contributions to plan by plan participants, net benefit liability (asset) - employer contributions Contributions to plan by employer, net benefit liability (asset) The amount of contributions to plan by employer for net benefit liability (asset). Benefits paid Payments from plan, net benefit liability (asset) The amount of payments from plan for net benefit liability (asset). The amount of increase decrease through changes in foreign exchange rates and other changes net benefit liability asset. Increase Decrease Through Changes In Foreign Exchange Rates And Other Changes Net Benefit Liability Asset Currency translation differences and other changes The increase (decrease) in the net benefit liability (asset) resulting from reclassification to liabilities directly associated with assets held for sale. Reclassification to liabilities directly associated with assets held for sale Increase (decrease) in net benefit liability (asset) resulting from reclassification to liabilities directly associated with assets held for sale Change in asset ceiling Increase (decrease) in net benefit liability (asset) The amount of increase (decrease) in net benefit liability (asset). Income Statement. Income Statement [Axis] Income Statement. Income Statement [Domain] Payroll and related costs This member stands for the information pertaining to "payroll and related costs related to benefit plans". This member stands for the information pertaining to "Financial income (expense)". Financial income (expense) Current service cost Current service cost, defined benefit plans Past service cost and (gains) losses on settlements Past service cost and losses (gains) arising from settlements, defined benefit plans - interest cost on liabilities Interest expense, defined benefit plans - interest income on plan assets Interest income, defined benefit plans Interest cost (income), net Interest expense (income), defined benefit plans Represent the gain loss on remeasurement of long term plans. Gain Loss On Re Measurement Of Long Term Plans Remeasurements for long-term plans Administration costs not reflected in return on plan assets, defined benefit plans Administrative fees paid Post-employment benefit expense in profit or loss, defined benefit plans Total Actuarial (gains)/losses due to changes in demographic assumptions Actuarial gains (losses) arising from changes in demographic assumptions, before tax Actuarial (gains)/losses due to changes in financial assumptions Actuarial gains (losses) arising from changes in financial assumptions, before tax Experience (gains) losses Actuarial gains (losses) arising from experience adjustments, before tax Return on plan assets Return on plan assets excluding interest income or expense Changes in asset ceiling Increase (decrease) in asset ceiling, before tax Level 2 and 3 of fair value hierarchy Cash and cash equivalents, amount contributed to fair value of plan assets Cash and cash equivalents Equity instruments, amount contributed to fair value of plan assets Equity securities Debt instruments, amount contributed to fair value of plan assets Debt securities Real estate Real estate, amount contributed to fair value of plan assets Derivatives Derivatives, amount contributed to fair value of plan assets Investment funds, amount contributed to fair value of plan assets Investment funds Assets held by insurance companies, amount contributed to fair value of plan assets Assets held by insurance companies The amount of assets held by insurance companies contribute to the fair value of defined benefit plan assets. Other Other assets, amount contributed to fair value of plan assets Total Plan assets, at fair value Assets held by insurance companies. Assets held by insurance companies FISDE This member stands for the information pertaining to "Executives' Supplementary Health Fund, ENI {Fondo Integrativo Sanitario Dirigenti ENI ("FISDE")". Executives Supplementary Health Fund Eni [Member] Discount rate Actuarial assumption of discount rates. Rate of compensation increase Actuarial assumption of expected rates of salary increases. Rate of price inflation Actuarial assumption of expected rates of inflation. Life expectations on retirement at age 65 Actuarial assumption of life expectancy after retirement Euro Area This member stands for the information pertaining to "Euro Area". This member stands for the information pertaining to "Rest of Europe". Rest of Europe Africa This member stands for the information pertaining to "Other areas". Other areas Actuarial assumptions [axis] Actuarial assumption of discount rates Actuarial assumption of expected rates of inflation Actuarial assumption of expected rates of salary increases Actuarial assumption of medical cost trend rates Actuarial assumption of expected rates of pension increases Percentage of reasonably possible increase in actuarial assumption Percentage of reasonably possible decrease in actuarial assumption Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption The increase (decrease) in a other benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. Increase Decrease In other Benefit Obligation Due To Reasonably Possible Increase In Actuarial Assumption Increase (decrease) in other benefit obligation due to reasonably possible increase in actuarial assumption The increase (decrease) in a other benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. Increase Decrease In other Benefit Obligation Due To Reasonably Possible Decrease In Actuarial Assumption Increase (decrease) in other benefit obligation due to reasonably possible decrease in actuarial assumption Weighted average duration of defined benefit obligation Weighted average duration of defined benefit obligation Weighted average duration of benefit obligation The period of weighted average duration of benefit obligation. Deferred monetary incentive plans This member stands for the information pertaining to "Deferred monetary incentive plans". Agreed redundancy plans for workers This member stands for agreed redundancy plans for workers. Expansion contracts for workers Isopensione This member stands for the information pertaining to "Isopensione". Jubilee Awards This member stands for the information pertaining to "Jubilee Awards". Other Long term Plans This member stands for the information pertaining to "Other Long-term Plans". Estimate of contributions expected to be paid to plan for next annual reporting period Decrease in liability (asset) of benefit plans Decrease in Liability (asset) of benefit plans The amount of decrease in liability (asset) of benefit plans. Deferred tax liabilities before offsetting Deferred Tax Liabilities, Net The amounts of deferred tax assets available for offset. Deferred Tax Assets Available For Offset Deferred tax assets available for offset Deferred tax assets before offsetting (net of accumulated write-down provisions) Deferred tax assets Deferred tax assets The amounts of deferred tax liabilities available for offset. Deferred Tax Liabilities Available For Offset Deferred tax liabilities available for offset Disclosure of temporary difference, unused tax losses and unused tax credits [table] Temporary difference, unused tax losses and unused tax credits [axis] Accelerated tax depreciation This member stands for the information pertaining to "Accelerated tax depreciation". Derivatives This member stands for the information pertaining to "Difference between the fair value and the carrying amount of assets acquired". Difference between the fair value and the carrying amount of assets acquired Site restoration and abandonment (tangible assets) This member stands for the information pertaining to "Site restoration and abandonment (tangible assets)". Leasing This member stands for the information pertaining to "Leasing". This member stands for the information pertaining to "Application of the weighted average cost method in evaluation of inventories". Application of the weighted average cost method in evaluation of inventories Unused tax losses This member stands for the information pertaining to "Site restoration and abandonment (provisions for contingencies)". Site restoration and abandonment (provisions for contingencies) Timing differences on depreciation and amortization This member stands for the information pertaining to "Timing differences on depreciation and amortization". This member stands for the information pertaining to "Accruals for impairment losses and provisions for contingencies". Accruals for impairment losses and provisions for contingencies Unrealized intercompany profits This member stands for the information pertaining to "Unrealized intercompany profits". Over/Under lifting This member stands for the information pertaining to "Over/Under lifting". Other temporary differences Deferred tax assets before offsetting, gross Deferred tax assets, gross This member stands for deferred tax assets. Temporary differences Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Deferred Tax Assets Accumulated Write Downs Accumulated write-downs of deferred tax assets Schedule disclosing information related to details of deferred tax liabilities table Disclosure Of Deferred Tax Liabilities [Table] Deferred tax liabilities before offsetting Deferred tax liabilities, gross This member stands for the information pertaining to "Deferred tax liabilities". Deferred tax assets before offsetting net of accumulated write-down provisions Deferred tax assets net of impairment before offsetting Represent the deferred tax assets net of impairments. Schedule disclosing information related to details of deferred tax liabilities line items. Disclosure Of Deferred Tax Liabilities [Line Items] Deferred tax assets and liabilities Deferred tax liability (asset) at beginning of year Deferred tax liability (asset) at end of year Deferred tax liability (asset) Additions Increase (decrease) through additions, deferred tax liability (asset) The amount of increase (decrease) through additions, deferred tax liability (asset). Deductions Increase (decrease) through deductions, deferred tax liability (asset) The amount of increase (decrease) through deductions, deferred tax liability (asset). Changes with effect to OCI Income tax relating to components of other comprehensive income Currency translation differences Increase (decrease) through net exchange differences, deferred tax liability (asset) The amount of increase (decrease) in deferred tax liability (asset) resulting from the changes in scope of consolidation. Increase (Decrease) through Change in Scope of Consolidation Deferred Tax Liability Asset Change in scope of consolidation The amount of increase (decrease) through other changes, deferred tax liability (asset). Other changes Increase (decrease) through other changes, deferred tax liability (asset) The amount that represents the carry forward tax losses. Carry forward Tax Losses Carry-forward tax losses The amount of carry-forward tax losses that can be used indefinitely. Carryforward Tax Losses Indefinitely Carry-forward tax losses indefinitely Tax rate (IRES) (%) Tax rate Applicable tax rate Increase (decrease) in deferred tax liability (asset) Increase (decrease) in deferred tax liability (asset) Disclosure of derivative financial instruments. Disclosure Of Derivative Financial Instruments [Table] Non-hedging derivatives This member stands for the information pertaining to "Non-hedging derivatives". Trading derivatives This member stands for the information pertaining to "Trading derivatives". Cash flow hedges Cash flow hedge derivatives Option contract Currency swap contract Interest rate swap contract Outright This member stands for the information pertaining to "Outright". Futures contract Over the counter contract This member stands for the information pertaining to "Over the counter contract". Options This member stands for the information pertaining to "Option contracts". Option embedded in convertible bonds This member stands for the information pertaining to "Option embedded in convertible bonds". Other contracts This member stands for the information pertaining to "Other contracts". Level 3 Disclosure of derivative financial instruments Disclosure Of Derivative Financial Instruments [Line Items] Derivative financial instruments and hedge accounting Derivative financial assets It represents the amount of offsetting of derivative financial assets. Offsetting Of Derivative Financial Assets Offsetting It represents the amount of derivative financial assets, net amount. Derivative Financial Assets Net Amount Net amount Derivative financial liabilities It represents the amount of offsetting of derivative financial liabilities. Offsetting Of Derivative Financial Liabilities Offsetting It represents the amount of derivative financial liabilities, net amount. Derivative Financial Liabilities Net Amount Net amount Types of hedges [axis] The nominal amount of a hedging instruments. Nominal amount of hedging instruments Nominal Amount Of Hedging Instruments Change in fair value (effective hedge) Gains (losses) on cash flow hedges, net of tax Gain (loss) on hedge ineffectiveness recognised in profit or loss Change in fair value (ineffective hedge) Hedged items [axis] Planned sales This member stands for the information pertaining to "Forecast sales". Hedged flows This member stands for the information pertaining to "Hedged flows". Cash flow hedges [abstract] Change of underlying asset used for calculation of hedging ineffectiveness Change in fair value (ineffective hedge) CFH reserve Cash flow hedge reserve, before tax The amount of cash flow hedge reserve, before tax. Reclassification adjustments on cash flow hedges, before tax Other derivatives This member stands for the information pertaining to "Non-cash flow hedging derivatives". Fair value hedges Sustainability This member stands for the information pertaining to "Sustainability risk". Exchange rate risk deriving from securities The amount of exchange rate risk deriving from securities. Positive (negative) exchange differences from the exposure to the exchange rate risk deriving from securities Increase (decrease) through foreign exchange, exposure to credit risk on loan commitments and financial guarantee contracts Hedging instrument Nominal amount of the hedging instrument Nominal amount of hedging instrument Bonds issued Bonds issued Disclosure Of Discontinued Operations Explanatory Disclosure Of Discontinued Operations Explanatory [Table] Assets and liabilities classified as held for sale [member] Disclosure Of Discontinued Operations Explanatory Disclosure Of Discontinued Operations Explanatory [Line Items] Assets held for sale and liabilities directly associated with assets held for sale The amount of non-current assets or disposal groups classified as held for sale classified as current. Assets held for sale, current Non-current assets or disposal groups classified as held for sale, current The amount of liabilities included in disposal groups classified as held for sale classified as current. Liabilities held for sale, current Liabilities included in disposal groups classified as held for sale, current Schedule of noncontrolling interest disclosure. Non-controlling Interests [Table] This member stands for the information pertaining to "EniPower Group", a subsidiary that has non-controlling interests that are material to the reporting entity. EniPower Group Eni Power Group [Member] This member stands for the information pertaining to "Eni Plenitude Group". Eni Plenitude Group Eni Plenitude Group [member] This member stands for the information pertaining to other subsidiaries that have non-controlling interests that are material to the reporting entity. Others Other Subsidiaries with Material Non-controlling Interests [Member] Non-controlling Interest [Line Items] Non-controlling Interest Miscellaneous equity [abstract] Other reserves and equity instruments: Carrying value of perpetual subordinated bonds issued by the company. Perpetual Subordinated Bonds Perpetual subordinated bonds Legal reserve Statutory reserve Reserve for treasury shares Capital redemption reserve Reserve of cash flow hedges. Reserve for OCI on cash flow hedging derivatives net of tax effect Reserve for OCI on defined benefit plans net of tax effect Reserve of remeasurements of defined benefit plans. Reserve for OCI on equity-accounted investments Reserve of share of other comprehensive income of investments accounted for using equity method The amount of reserve of share of other comprehensive income of investments accounted for using equity method. Reserve for OCI on other investments valued at fair value Reserve of gains and losses from investments in equity instruments Reserve of equity component of convertible instruments Reserve for convertible bond issue Other reserves Miscellaneous other reserves The amount of miscellaneous other reserves. Disclosure of reserves within equity [table] Reserves within equity [axis] Reserve for OCI on cash flow hedge derivatives Reserve for OCI on defined benefit plans This member stands for the information pertaining to "Reserve of share of other comprehensive income of investments accounted for using equity method". Reserve for OCI on equity-accounted investments Reserve for OCI on Investments valued fair value Reserve for OCI on investments valued at fair value Equity Reserve Carrying amount Deferred Tax Liabilities [Axis] Equity Reserve Carrying amount Deferred Tax Liabilities [Domain] Gross reserve This member stands for the information pertaining to "Gross reserve". Reserves within equity Disclosure of reserves within equity [line items] Represents the changes in equity during the period. Reserves Within Equity Changes During Period Changes of the year Represents the equity reserve for financial assets. Reserves Within Equity Foreign Currency Translation Differences Currency translation differences Reversal to inventories adjustments The amount of reversal to inventories adjustments. The increase (decrease) in equity resulting from reclassification to retained earnings. Reclassification to retained earnings Increase (decrease) through reclassification to retained earnings, equity Represents the reclassification adjustments in equity reserve for during the year. Reclassification adjustments of reserves within equity Reclassification adjustments Share of accumulated other comprehensive income of equity-accounted investments The amount of share of accumulated other comprehensive income of equity-accounted investments. OCI relating to equity-accounted investments Separate to consolidated reconciliation Separate to consolidated reconciliation [Table] Consolidated and separate financial statements [axis] Consolidated [member] Eni SpA's Financial Statements Separate to consolidated reconciliation Separate to consolidated reconciliation [Line Items] Separate to consolidated reconciliation Adjustments to profit (loss) attributable to owners of parent due to excess of net equity. Excess of net equity stated in the separate accounts of consolidated subsidiaries over the corresponding carrying amounts of the parent company, Net profit Excess Of Net Equity Stated In Separate Accounts Of Consolidated profit Loss Adjustments to profit (loss) attributable to difference in purchase cost and carrying amount of equity. Adjustments To Net Loss Difference In Purchase Cost And Carrying Amount Of Equity - difference between purchase cost and underlying carrying amounts of net equity, Net profit Adjustments to profit (loss) attributable to group accounting policies. Adjustments To Net Loss Group Accounting Policies - adjustments to comply with Group accounting policies, Net profit Adjustments to profit (loss) attributable to elimination of inter company profits. Adjustments To Net Loss Elimination Of Intercompany Profits - elimination of unrealized intercompany profits, Net profit Adjustments to profit (loss) attributable to deferred taxation. Adjustments To Net Loss Deferred Taxation - deferred taxation, Net profit Excess of net equity stated in the separate accounts of consolidated subsidiaries over the corresponding carrying amounts of the parent company, Shareholders' equity Adjustments attributable to owners of parent due to excess of net equity. Excess Of Net Equity Stated In Separate Accounts Of Consolidated Equity Adjustments to equity attributable to difference in purchase cost and carrying amount of equity. Adjustments To Equity Difference In Purchase Cost And Carrying Amount Of Equity - difference between purchase cost and underlying carrying amounts of net equity, Shareholders' equity Adjustments to equity attributable to group accounting policies. Adjustments To Equity Group Accounting Policies - adjustments to comply with Group accounting policies, Shareholders' equity Adjustments to equity attributable to elimination of inter company profits. Adjustments To Equity Elimination Of Inter company Profits - elimination of unrealized intercompany profits, Shareholders' equity Adjustments to equity attributable to deferred taxation. Adjustments To Equity Deferred Taxation - deferred taxation, Shareholders' equity Information by a part or instalment of scheduled transaction. Tranche [Axis] A part or instalment of scheduled transaction. Tranche [Domain] Retained earnings This member stands for perpetual subordinated bonds. Perpetual subordinated bonds This member stands for perpetual subordinated bond, one. Perpetual subordinated bond, one This member stands for perpetual subordinated bond, two. Perpetual subordinated bond, two This member stands for perpetual subordinated bond, three. Perpetual subordinated bond three This member stands for perpetual subordinated bond, four. Perpetual subordinated bond four Merger reserve Types of share-based payment arrangements [axis] Long-Term Monetary Incentive Plan 2020 - 2022 This member stands for the information pertaining to "Long-term Monetary Incentive Plan 2020 - 2022". This member stands for 5-year Euro Mid Swap rate. Five Year Euro Mid Swap Rate Number of shares issued Dividend per share to fully settle prior year dividend The per share amount of, dividend per share to fully settle prior year dividend. Dividends recognised as distributions to owners per share Number of Treasury Shares Cancelled Number of treasury shares cancelled The number of treasury shares cancelled during the reporting period. The decrease amount in other reserves due to cancellation of treasury shares during the reporting period. Reduction of the related reserve due to cancellation of treasury shares Decrease in Other Reserves Due to Cancellation of Treasury Shares Dividends paid, ordinary shares per share Interim dividends paid per share relating to prior year The per share amount of, interim dividends paid per share relating to prior year. Period of time from date of resolution to proceed with purchase of shares The period of time from date of resolution to proceed with purchase of shares. Percentage of ordinary shares authorized to be purchased The percentage of ordinary shares authorized to be purchased. Percentage of share capital authorized to be purchased The percentage of share capital authorized to be purchased. Purchase of shares, maximum authorised amount The amount of purchase of shares for maximum authorised amount. Number of treasury shares purchased The number of treasury shares purchased during the reporting period. The amount of interim dividends paid per share. Interim Dividends Paid Per Share Interim dividends paid per share Number of other equity instruments issued by the company. Number Of Other Equity Instruments Issued Number of euro-denominated perpetual subordinated hybrid bonds issued Term of the perpetual subordinated hybrid bonds issued by the company. Perpetual Subordinated Bonds, Term Term of the bonds Percentage of re-offer price of the perpetual subordinated hybrid bonds issued by the company. Perpetual Subordinated Bonds, Reoffer Price, Percentage Reoffer price (as a percent) Percentage of annul fixed coupon rate of the perpetual subordinated hybrid bonds issued by the company. Perpetual Subordinated Bonds, Annual Fixed Coupon Rate Annual fixed coupon (as a percent) The adjustment to the basis (reference rate) used for calculation of the interest rate on perpetual subordinated hybrid bonds issued by the company. Perpetual Subordinated Bonds, Adjustment To Interest Rate Basis Initial spread on variable rate (as a percent) The additional adjustment to the basis (reference rate) used for calculation of the interest rate on perpetual subordinated hybrid bonds issued by the company. Additional spread on variable rate (as a percent) Perpetual Subordinated Bonds, Adjustment To Interest Rate Basis, Additional Basis Points Number of shares in entity held by entity or by its subsidiaries or associates Number of treasury shares Represents the sale and issue of treasury shares. Sale and Issue of Treasury Shares Treasury shares assigned Authorised number of treasury shares to be disposed Authorised number of treasury shares to be disposed The number of treasury shares sold during the reporting period. Represents the distributed reserves. Distributable reserves The number of tranches for dividend distributions of the reporting entity. Number of tranches for dividend distributions Number of tranches for dividend distributions The number of shares authorised for purchase of ordinary shares of the reporting entity. Number of shares authorised for purchase of ordinary shares Number of shares authorised for purchase of ordinary shares Number of shares authorised for purchase of ordinary shares for the purpose of remunerating shareholders Number of shares authorised for purchase of ordinary shares for purpose of remunerating shareholders The number of shares authorised for purchase of ordinary shares for the purpose of remunerating shareholders of the reporting entity. Number of shares authorised for purchase of ordinary shares for setting up so-called stock store Number of shares authorised for purchase of ordinary shares for setting up the so-called stock store The number of shares authorised for purchase of ordinary shares for setting up the so-called stock store of the reporting entity. No definition available. Disclosure Of Notes And Other Explanatory Information Explanatory [Table] This member stands for the information pertaining to "Business combinations excluding Union Fenosa Gas". Business combinations excluding Union Fenosa Gas Business combinations excluding Union Fenosa Gas No definition available. Disclosure Of Notes And Other Explanatory Information Explanatory [Line Items] Other information Investment in consolidated subsidiaries and businesses Investment in consolidated subsidiaries and businesses [abstract] Value of investment sold The valuation amount of investment sold. Non-current assets recognised before recognition of goodwill as of acquisition date The amount recognised as of the acquisition date for non-current assets acquired before recognition of goodwill in a business combination. Non-current assets Net borrowings Net borrowings recognised as of acquisition date The amount of net borrowings recognised as of acquisition date. Current and non-current liabilities Liabilities recognised as of acquisition date The amount of liabilities recognised as of acquisition date. Current and non-current liabilities Net effects of investments Identifiable assets acquired (liabilities assumed) Net effect of investments The amount of cash and cash equivalents in subsidiary or businesses acquired. Cash and cash equivalents in subsidiary or businesses acquired Less: Cash and cash equivalents acquired Disposal of consolidated subsidiaries and businesses [abstract] Disposal of consolidated subsidiaries and businesses The amount of current non-financial assets derecognised as of disposal date. Current assets Current non-financial assets derecognised as of disposal date Non-financial liabilities derecognised as of disposal date Current and non-current liabilities The amount of non-financial liabilities derecognised as of disposal date. Net effect of disposals Identifiable assets (liabilities) disposed The amount of identifiable assets (liabilities) disposed. The amount of current value of the stake held for business combinations. Current value of the stake held for business combinations Current Value of Stake Held for Business Combinations Reclassification among other items of OCI Reclassification adjustments on exchange differences on translation, net of tax Reclassification of foreign currency translation differences among other items of OCI Gain on disposal of business combinations Gains (losses) recognised when control of subsidiary is lost Gain (loss) on disposal Fair value of share capital held after the sale of control Portion of gains (losses) recognised when control of subsidiary is lost, attributable to recognising investment retained in former subsidiary Capital gain from the fair value measurement of the residual stake of investments held The amount of credits for divestments. Credits for divestments Credits for Divestments Selling price The amount of selling price. This member stands for the information pertaining to "Provisional allocation" of purchase price for business combination. Provisional allocation Provisional Allocation [Member] The amount recognised as of the acquisition date for cash and cash equivalents (net of borrowings) acquired in a business combination. Cash and cash equivalent (Net borrowings) Cash and cash equivalent net of borrowings recognised as of acquisition date Corazon I Solar plant [member] Corazon I Solar plant This member stands for the information pertaining to "Corazon I Solar plant". Guajillo storage project This member stands for the information pertaining to "Guajillo storage project". Guajillo storage project [member] Export LNG Ltd This member stands for the information pertaining to "Export LNG Ltd". Export LNG Ltd [member] FRI-EL Biogas Holding SpA This member stands for the information pertaining to "FRI-EL Biogas Holding SpA". Portfolio Of Thirteen Onshore Wind Facilities This member stands for the information pertaining to "Portfolio of Thirteen Onshore Wind Facilities". Dhamma Energy Group This member stands for the information pertaining to "Dhamma Energy Group". Portfolio Of Nine Renewable Energy Projects This member stands for the information pertaining to "Portfolio of Nine Renewable Energy Projects". GREECE Greece TEXAS Texas Cash and cash equivalents in subsidiary or businesses acquired or disposed Number of wind projects to be constructed. Number Of Wind Projects To Be Constructed Number of wind projects to be constructed in Puglia Number of plant owned Italian bioenergy production sector. Number Of Plant Owned Number of plants owned Number of retail custmer for sale of electricity, gas and energy services. Number Of Retail Customers Number of retail customers Number of Wind Farms in Operation Number of wind farms in operation The number of wind farms in operation during the reporting period. Number of Wind Farms under Construction Number of wind farms under construction The number of wind farms under construction during the reporting period. Number of Photovoltaic Projects Number of photovoltaic projects The number of photovoltaic projects during the reporting period. Number of charging point installed in electric vehicles. Number Of Charging Point Number of charging points Natural gas operating capacity Amount of operating capacity of the natural gas. Natural gas operating capacity Business divestment, Acquirer [axis] Information by the acquirer in a material business divestment. Business divestment, Acquirer [axis] Business divestment, Acquirer [Domain] Identification of the acquirer in a material business divestment. Business divestment, Acquirer [Domain] Prime International Oil & Gas Company This member stands for information pertaining to "Prime International Oil and Gas Company" as an acquirer of reporting entity's business or subsidiary. Prime International Oil and Gas Company [Member] Assets in Pakistan This member stands for the information pertaining to "Assets in Pakistan". Assets in Pakistan [member] Represents the information pertaining to Be Power SpA. Be Power SpA This member stands for the information pertaining to "Eni North Sea Wind Ltd". Eni North Sea Wind Ltd [member] Eni North Sea Wind Ltd Angola ANGOLA Other significant transactions Other significant transactions [Axis] Other significant transactions Other significant transactions [Domain] The number of partners in oil and gas operation during the reporting period. Number of partners in oil and gas operation Number of partners in oil and gas operation Number of phases of the project The number of phases of the project during the reporting period. Number of phases of project Number of oil and gas development and production licenses The number of oil and gas development and production licenses during the reporting period. Number of oil and gas development and production licenses Number of exploration blocks licences The number of exploration blocks licences during the reporting period. Number of exploration blocks licences Disclosure of contingent liabilities [table] Classes of guaranteed entities [Axis] Classes of guaranteed entities [Domain] Consolidated subsidiaries This member stands for the information pertaining to "Consolidated subsidiaries". Joint ventures and associates This member stands for the information pertaining to "Joint ventures and associates". This member stands for the information pertaining to "Other entities". Others Guarantees, commitments and risks Disclosure of contingent liabilities [line items] The total amount of the guarantees. Guarantees. Guarantees Commitments Contractual capital commitments The amount of risks associated with the entity. Risks The amount of commitments and risks. Commitments And Risks Commitments and risks This member stands for the information pertaining to "Average". Average Value at risk Trading This member stands for the information pertaining to "Trading". Classes of financial liabilities [axis] Debt and derivatives This member stands for the information pertaining to "Debt and derivatives". Interest on finance debt and lease liabilities This member stands for the information pertaining to "Interest on finance debt and lease liabilities". Interest on finance debt This member stands for the information pertaining to "Interest on finance debt". Interest on lease liabilities This member stands for the information pertaining to "Interest on lease liabilities". Guarantees Non-derivative financial liabilities Non-derivative financial liabilities, undiscounted cash flows Derivative financial liabilities Derivative financial liabilities, undiscounted cash flows Financial liabilities Financial liabilities, undiscounted cash flows The amount of financial liabilities for undiscounted cash flows. Trade payables This member stands for the information pertaining to "Trade payables". Other payables and advances This member stands for the information pertaining to "Other payables and advances". Trade and other payables Trade and other payables, undiscounted cash flows Types of financial liabilities [axis] Decommissioning liabilities This member stands for the information pertaining to "Decommissioning liabilities". Environmental liabilities This member stands for the information pertaining to "Environmental liabilities". Purchase obligations This member stands for the information pertaining to "Purchase obligations". This member stands for the information pertaining to "Gas ship or pay contracts". Gas ship or pay contracts This member stands for the information pertaining to "Other purchase obligations". Other purchase obligations Other obligations This member stands for the information pertaining to "Other obligations". Memorandum of intent Val d'Agri This member stands for the information pertaining to "Val d'Agri". Subsidiaries The amount of contractual obligations. Contractual Obligations Contractual obligations Later than four years This member stands for the information pertaining to "Later than four years". Not later than four years This member stands for the information pertaining to "Not later than four years". Committed projects Capital commitments Expected capital investment and capital expenditure The amount of expected capital investment and capital expenditure. Other operating income (loss) This member stands for the information pertaining to "Other operating income (loss)". This member stands for the information pertaining to "Interest income calculated on the basis of the effective interest rate". Interest income calculated on the basis of the effective interest rate This member stands for the information pertaining to "Interest expense calculated on the basis of the effective interest rate". Interest expense calculated on the basis of the effective interest rate This member stands for the information pertaining to "Net (impairment losses) reversal of trade and other receivables". Net (impairment losses) reversal of trade and other receivables Net revaluations or impairments This member stands for the information pertaining to "Net revaluations or impairments". Non-hedging and trading derivatives The amount of non-hedging and trading derivatives. Trade receivables and other Trade and other receivables. The amount of financing receivables. Financing Receivables Financing receivables Securities Debt instruments held Trade payables and other Trade and other payables. Net assets (liabilities) for hedging derivatives Assets (liabilities) for hedging derivatives The amount of assets (liabilities) for hedging derivatives. The amount of income (expense) recognized in profit and loss account of non-hedging and trading derivatives. Non Hedging and Trading Derivatives, Finance Income (Expense) Recognized in Profit and Loss Non-hedging and trading derivatives, Income (expense) recognized in profit and loss account The amount of income (expense) recognized in profit and loss account of other investments valued at fair value. Other Investments Valued At Fair Value, Finance Income (Expense) Recognized in Profit and Loss Other investments valued at fair value, Income (expense) recognized in profit and loss account The amount of income (expense) recognized in other comprehensive income of other investments valued at fair value. Other Investments Valued At Fair Value, Finance Income (Expense) Recognized in Other Comprehensive Income Other investments valued at fair value, Income (expense) recognized in other comprehensive income The amount of income (expense) recognized in profit and loss account of trade receivables and other. Trade Receivables and Other, Finance Income (Expense) Recognized in Profit and Loss Trade receivables and other, Income (expense) recognized in profit and loss account The amount of income (expense) recognized in profit and loss account of trade receivables and other. Financing Receivables, Finance Income (Expense) Recognized in Profit and Loss Financing receivables, Income (expense) recognized in profit and loss account Securities, Income (expense) recognized in profit and loss account The amount of income (expense) derived from securities, which are recognized in profit and loss account. Securities, Finance Income (expense) recognized in profit and loss account The amount of income (expense) recognized in profit and loss account of securities. Trade Payables and Other, Finance Income (Expense) Recognized in Profit and Loss Trade payables and other, Income (expense) recognized in profit and loss account The amount of income (expense) recognized in profit and loss account of financing payables. Financing Payables, Finance Income (Expense) Recognized in Profit and Loss Financing payables, Income (expense) recognized in profit and loss account The amount of income (expense) recognized in profit and loss account of hedging derivatives. Net assets (liabilities) for hedging derivatives, Income (expense) recognized in profit and loss account Hedging Derivatives, Finance Income (Expense) Recognized in Profit and Loss The amount of income (expense) recognized in other comprehensive income of hedging derivatives. Hedging Derivatives, Finance Income (Expense) Recognized in Other Comprehensive Income Net assets (liabilities) for hedging derivatives, Income (expense) recognized in other comprehensive income Types of financial assets [axis] Other current assets Other current assets [member] This member stands for the information pertaining to "Other current assets". Represents the information pertaining to Other non current assets. Other non-current assets [member] Other non-current assets Trade and other payables Trade and other payables [member] This member stands for the information pertaining to "Trade and other current liabilities". Other current liabilities Other current liabilities [member] This member stands for the information pertaining to "Other current liabilities". Other non-current liabilities Other non-current liabilities [member] This member stands for the information pertaining to "Other non-current liabilities". Gross amount of financial assets Gross financial assets subject to offsetting, enforceable master netting arrangements or similar agreements Gross amount of financial liabilities subject to offsetting Gross financial liabilities set off against financial assets subject to offsetting, enforceable master netting arrangements or similar agreements Gross amount of financial assets and liabilities subject to offsetting Net amount of financial assets Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position Gross amount of financial liabilities Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements Gross amount of financial assets subject to offsetting Gross financial assets set off against financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements Net amount of financial liabilities Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position Special purpose entities Special purpose entities [Axis] Special purpose entities Special purpose entities [Domain] Social security institutes This member stands for the information pertaining to "Social security institutes". Social security institutes [member] Gulf LNG Energy and Gulf LNG Pipeline This member stands for the information pertaining to "Gulf LNG Energy and Gulf LNG Pipeline". Third parties This member stands for the information pertaining to "Third parties". This member stands for State oil Company of Mozambique ENH. State oil Company of Mozambique ENH This member stands for partners of unincorporated joint operations. Partners of unincorporated joint operations Financial administration for credits VAT refunds [member] Financial administration for credits VAT refunds This member stands for the information pertaining to "Financial administration for credits VAT refunds". Greenpeace Onlus and ReCommon APS, together with 12 private citizens [member] This member stands for the information pertaining to "Greenpeace Onlus and ReCommon APS, together with 12 private citizens". Greenpeace Onlus and ReCommon APS, together with 12 private citizens Pastor and associations [member] This member stands for the information pertaining to "Pastor and the associations". Pastor and the associations This member stands for the information pertaining to "Angola LNG Supply Services Llc". Angola LNG Supply Services Llc Other Commitments Other Commitments 1 [Axis] Other Commitments [Domain] Other Commitments 1 [Domain] Hydrocarbon exploration and production activities This member stands for the information pertaining to "Hydrocarbon exploration and production activities". Risk associated with contractual assurances to acquirers This member stands for the information pertaining to "Risk associated with contractual assurances to acquirers". Value of assets of third parties under custody This member stands for the information pertaining to "Value of assets of third parties under custody". Euro Medium Term Notes This member stands for the information pertaining to "Euro Medium Term Notes". Eni Abu Dhabi Refining & Trading BV This member stands for Eni Abu Dhabi Refining & Trading BV. Eni Abu Dhabi R&T BV Eni Trading Shipping Inc This member stands for the information pertaining to "Eni Trading Shipping Inc". Eni Rewind SpA and Versalis SpA This member stands for the information pertaining to "Eni Rewind SpA and Versalis SpA". This member stands for the information pertaining to "Enimed SpA". Enimed SpA [member] Enimed SpA EniServizi SpA [member] EniServizi SpA This member stands for the information pertaining to "EniServizi SpA". Represents the information pertaining to unsecured and other guarantees. Unsecured and other guarantees Classes of contingent liabilities [axis] Environmental claim relating to Municipality of Cengio This member stands for the information pertaining to "Environmental claim relating to Municipality of Cengio". This member stands for alleged illegal handling of waste material. Alleged illegal handling of waste material Porto Torres dock damage This member stands for the information pertaining to "Porto Torres dock damage". Tax contingent liability Tax contingent liability [member] Block OPL 245 Nigeria This member stands for the information pertaining to "Block OPL 245 Nigeria". Priolo - Malformation civil lawsuits [member] This member stands for the information pertaining to "Priolo – Malformation civil lawsuits". Priolo - Malformation civil lawsuits Other environment related contingent liability [member] Climate dispute Alleged damages deriving from artefacts [member] This member stands for the information pertaining to "Alleged damages deriving from artefacts". Alleged damages deriving from artefacts Represents the information pertaining to A D N O C Refining. ADNOC Refining Project relating to Dogger Bank (C) This member stands for the information pertaining to "Project relating to Dogger Bank (C)". Neptune Energy Group Limited [member] Neptune Energy Group Limited ("Neptune") This member stands for the information pertaining to "Neptune Energy Group Limited ("Neptune")". Spain, United States and Italy renewable energy project Spain and Greece renewable energy project Represents information pertaining to renewable energy project. The guarantee given for bid bonds and performance bonds. Guarantee for bid bonds and performance bonds The amount of independent gurantee contract amount. Independent Guarantee Contract Issuance Amount Independent gurantee contract amount Independent gurantee contracts and other personal guarantees issuance amount The amount of independent gurantee contracts and other personal guarantees issuance. Independent gurantee contracts and other personal guarantees amount The amount of underlying commitments covered by guarantee. Underlying commitment Represents the amount of bank guarantee. Bank Guarantee Bank guarantee The amount of maximum financial guarantee given by the company. Maximum financial guarantee given by the company Percentage of obligation covered by guarantee The percentage of obligation covered by guarantee. Amount of increase (decrease) in capital commitments. Increase (decrease) in capital commitments Equity interest to be transferred The percentage of equity interest to be transferred. Investment agreed The amount of investment agreed. These lines are represents that amount of contractual volumes of gas. Contractual volumes of gas amount Expected capital increase The amount of expected capital increase. Amount charged for contract of property Amount Charged For Contract Of Property Amount charged for contract of property. The period ofpossible future changes in market values monitored. Period of possible future changes in market values monitored Percentage of confidence level associated with risks. Percentage of Confidence Level Associated with Risks Percentage of confidence level Holding period The period of holding in derivatives contract. The period of medium and long-term financial debts for which coverage must be provided. Period of medium and long-term financial debts for which coverage must be provided Notional amount of bonds issued during period The notional amount of bonds issued. Percentage of equity credit assigned by the rating agencies to perpetual subordinated hybrid bonds issued by the company. Perpetual Subordinated Bonds, Percentage Of Equity Credit Assigned Equity credit assigned (as a percent) Commited credit lines The amount of commited credit lines. Contractual commitment, obligation of companies held for sale The amount of contractual commitment for obligation of companies held for sale. Claim amount The amount of claim for legal proceedings. Amount of fine payable by the company. Fine payable Fine payable Amount deemed to constitute the unfair profit obtained from the crime, to be confiscated as per the orders of the court. Contextual Confiscation Amount Contextual confiscation amount The fair value of asset, as estimated by the Government for assessment of a legal proceeding. Estimated Fair Value Of Asset Estimated fair value of the asset The percentage of interests of the company in assets. Entities Interest In Assets, Percentage Interest in assets (as a percent) Sanction agreed The amount of sanction agreed to pay legal settlement. The amount of litigation damages annulled by the court. Litigation damages annulled by the court The estimated damage value restored during the year. Estimated damage value The number of years required to monitor natural recovery. Number of years required to monitor natural recovery The value of estimated compensatory works in case of mis-performance. Estimated compensatory work The quantity of total emission of carbon dioxide during the year. Quantity of total emission of carbon dioxide The quantity of fee emission allowance of carbon dioxide during the year. Quantity of free emission allowance of carbon dioxide The quantity of deficit allowance of carbon dioxide during the year. Deficit quantity of emission allowance of carbon dioxide Preventive seizure amount The amount of preventive seizure for corresponding to the alleged litigations. Period over which the management deems the liquidity reserves retained by the company are enough to meet the financial obligations. Period Over Which Management Deems Liquidity Reserves Retained Are Enough To Meet Financial Obligations Period over which the management deems the liquidity reserves retained are enough to meet the financial obligations Percentage of emissions to be reduced by 2030 compared to 2020 levels The percentage of emissions to be reduced by 2030 compared to 2020 levels, or other appropriate measures to comply with the Paris Agreement. Percentage of emissions to be reduced by 2030 compared to 2020 levels Disclosure of disaggregation of revenue from contracts with customers [table] Timing of transfer of goods or services [axis] Goods/Services transferred in a specific moment at point in time Goods/Services transferred over a period of time Disclosure of disaggregation of revenue from contracts with customers [line items] Revenue Products sales and service revenues Disclosure of products and services [abstract] Sales of crude oil Revenue from sale of crude oil Sales of oil products Revenue from sale of oil and gas products Sales of natural gas and LNG Revenue from sale of natural gas Sales of petrochemical products Revenue from sale of petroleum and petrochemical products Revenue from sale of electricity Sales of power The amount of revenue from sale of other products. Revenue From Sale Of Other Products Sales of other products Services Revenue from rendering of services Revenues associated with contract liabilities at the beginning of the period Revenue that was included in contract liability balance at beginning of period The amount of gain on sale of assets and businesses. Gain On Sale Of Assets And Businesses Gains from sale of assets and businesses The amount of other income and revenue from other proceeds. Other Revenue From Other Proceeds Other proceeds Recovery of cost share of right-of-use assets pertaining to partners of unincorporated joint operations The amount of recovery of cost share of right-of-use assets pertaining to partners of non-incorporated joint operations. Production costs - raw, ancillary and consumable materials and goods Raw materials and consumables used Production costs - services Services expense The amount of expense arising from leases and other. Operating leases and other Lease expense and other The amount of net provisions for contingencies. Net provisions for contingencies Net provisions for contingencies Net additions for contingencies Other expenses Other expenses, by nature The total amount of purchase services and other costs, gross. Total Purchases Services And Other Costs Gross Purchase, services and other charges gross capitalized direct costs associated with self-constructed assets - tangible assets The amount of capitalized direct costs associated with self constructed assets tangible assets in relation to purchases and services. capitalized direct costs associated with selfconstructed assets tangible assets capitalized direct costs associated with self-constructed assets - intangible assets The amount of capitalized direct costs associated with self constructed assets intangible assets in relation to purchases and services. capitalized direct costs associated with selfconstructed assets intangible assets Wages and salaries Social security contributions The amount of payroll and related costs related to benefit plans. Payroll and related costs related to benefit plans Cost related to employee benefit plans Other costs Other employee expense The amount of payroll and related costs gross. Payroll and related costs gross Payroll and related costs gross Capitalized direct costs associated with self-constructed assets - tangible assets Capitalized direct costs associated with self constructed assets tangible assets in relation to payroll The amount of capitalized direct costs associated with self-constructed assets tangible assets in relation to payroll. Capitalized direct costs associated with self-constructed assets - intangible assets Capitalized direct costs associated with self constructed assets intangible assets in relation to payroll The amount of capitalized direct costs associated with self-constructed assets intangible assets in relation to payroll. Disclosure Of Operating Expenses Disclosure Of Operating Expenses [Table] Disclosure Of Operating Expenses Type Of Employees Type Of Employees [Axis] Type Of Employees Type Of Employees [Domain] Senior Managers This member stands for the information pertaining to "Senior Managers". Junior Managers This member stands for the information pertaining to "Junior Managers". Employees This member stands for the information pertaining to "Employees". Workers This member stands for the information pertaining to "Workers". Disclosure Of Operating Expenses. Disclosure Of Operating Expenses [Line Items] Costs Average number of employees Key Management Personnel Compensation Wages And Salaries Wages and salaries Key management personnel compensation, post-employment benefits Post-employment benefits Key management personnel compensation, other long-term employee benefits Other long-term benefits Indemnities upon termination of employment Key management personnel compensation, termination benefits Key management personnel compensation Key management personnel compensation Long-Term Monetary Incentive Plan 2023 - 2025 This member stands for the information pertaining to "Long-term Monetary Incentive Plan 2023 - 2025". The amount of costs arising from prospecting, geological and geophysical studies of exploration activities. Costs of Prospecting Geological and Geophysical Studies Prospecting costs, geological and geophysical studies of exploration activities Research and development costs Research and Development Expense Royalty expense Royalty Expense Provisions for redundancy incentives expense Termination benefits expense Defined contribution plans expense Post-employment benefit expense, defined contribution plans Limit of shares to be granted in share-based payment arrangement The number of limit of shares to be granted in share-based payment arrangement. The number of limit of shares to be granted for the part relating to unused shares in share-based payment arrangement. Limit of shares to be granted for part relating to unused shares in share-based payment arrangement Limit of shares to be granted for the part relating to unused shares in share-based payment arrangement Number of annual awards The number of annual awards. The element represents about the share based payment arrangement vesting term. Share Based Payment Arrangement Vesting Term Vesting period Percentage of shares that will be granted at the end of the vesting period, depending on market condition, in terms of Total Shareholder Return (TSR) of the Group's share compared to the TSR of the FTSE Mib index of the Italian Stock Exchange Market, and to a group of company's competitors ("Peers Group") and the TSR of their corresponding stock exchange market. Percentage Of Shares That Will Be Granted Depending On Market Condition Percentage of shares that will be granted depending on market condition in terms of TSR Share-based payment arrangement, Performance term Performance period The period of the performance term in share based payment arrangement. Percentage of shares that will be granted depending on the growth in the Net Present Value (NPV) of proved reserves benchmarked against the Peer Group Percentage Of Shares That Will Be Granted Depending On Growth In Net Present Value Of Proved Reserves Benchmarked Against Peer Group The percentage of shares that will be granted at the end of the vesting period, depending on the growth in the net present value (npv) of proved reserves benchmarked against the peer group. Percentage of shares that will be granted at the end of the vesting period, depending on a relative parameter represented by an industrial objective measured in terms of annual unit value ($/boe) of the Net Present Value of Proven Reserves (NPV) compared with the analogous value of each company in the Peer Group. Percentage Of Shares That Will Be Granted Depending On Relative Parameter Represented By An Industrial Objective Percentage of shares that will be granted depending on a relative parameter represented by an industrial objective Percentage of shares that will be granted at the end of the vesting period, depending on an absolute parameter represented by an economic-financial objective measured as the Organic Free Cash Flow cumulated in the three-year reference period, compared to the equivalent cumulated value provided for in the first three years of the Strategic Plan approved by the Board of Directors in the year of award and kept unchanged during the performance period. Percentage Of Shares That Will Be Granted Depending On An Absolute Parameter Represented By An Economic-Financial Objective Percentage of shares that will be granted depending on an absolute parameter represented by an economic-financial objective Percentage of shares that will be granted at the end of the vesting period, depending on environmental sustainability and energy transition objective in a three-year period consisting of three absolute objectives. Percentage Of Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective Percentage of shares that will be granted depending on environmental sustainability and energy transition objective Number of absolute objectives considered for determination of shares that will be granted at the end of the vesting period depending on environmental sustainability and energy transition objective. Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective, Number Of Absolute Objectives Considered Number of absolute objectives considered for determination of shares that will be granted depending on environmental sustainability and energy transition objective Percentage to decarbonisation objective considered for determination of shares that will be granted at the end of the vesting period, depending on environmental sustainability and energy transition objective. Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective, Percentage To Decarbonisation Objective Considered Percentage of shares that will be granted depending on decarbonisation objective Percentage on energy transition objective considered for determination of shares that will be granted at the end of the vesting period, depending on environmental sustainability and energy transition objective. Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective, Percentage On Energy Transition Objective Considered Percentage of shares that will be granted depending on energy transition objective Percentage on a circular economy objective considered for determination of shares that will be granted at the end of the vesting period, depending on environmental sustainability and energy transition objective. Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective, Percentage On Circular Economy Objective Considered Percentage of shares that will be granted depending on circular economy objective Number of important projects, whose progress is considered for determination of shares that will be granted at the end of the vesting period depending on environmental sustainability and energy transition objective, under the circular economy absolute objective. Shares That Will Be Granted Depending On Environmental Sustainability And Energy Transition Objective, Number Of Important Projects Considered Number of important projects considered for determination of shares that will be granted depending on environmental sustainability and energy transition objective Percentage of shares that will vest after vesting period The percentage of shares that will vest after vesting period. Lock-up clause percentage The percentage of lock-up clause. Lock-up clause term Share Based Payment Arrangement Lock Up Clause Term The period of the lock-up clause term in share based payment arrangement. Number of other equity instruments granted in share-based payment arrangement Weighted average fair value of awarded shares The per share amount of, weighted average fair value of awarded shares. Weighted average share price at grant date Weighted average share price, share options granted Expected dividend as percentage Expected dividend as percentage, share options granted Expected volatility Expected volatility, share options granted Expense from share-based payment transactions with employees Directors' remuneration expense Statutory auditors remuneration expense Auditor's remuneration The period from the Strategic Plan approved by the Board of Administration in share based payment arrangement. Share-based payment arrangement, Period from Strategic Plan approved by Board of Administration Period from Strategic Plan approved by the Board of Administration No definition available. Finance Income Expense Related To Net Borrowings [Abstract] Finance income (expense) related to net borrowings Interest and other finance expense on ordinary bonds Interest expense on bonds The amount of interest and other expense due to banks and other financial institutions. Interest and other expense due to banks and other financial institutions Interest and other expense due to banks and other financial institutions Interest from banks Interest income on cash and bank balances at central banks The amount of finance income on financial assets held for non-operating purposes. Finance income on financial assets held for nonoperating purposes Interest and other income on financial receivables and securities held for non-operating purposes The total amount of finance income expenses relating to net borrowings. Total Finance Income Expense Related To Net Borrowings Finance income (expense) related to net borrowings Exchange differences Foreign exchange gain (loss) No definition available. Other Finance Income Expense [Abstract] Other finance income (expense) The amount of finance income on financial assets held for operating purposes. Finance income on financial assets held for operating purposes Interest and other income on financing receivables and securities held for operating purposes Finance expense due to the passage of time (accretion discount) Finance expense due to the passage of time (accretion discount) The amount of all other miscellaneous financial income (expenses). Other Miscellaneous Finance Income Expenses Other finance income (expense) Other finance income (cost) Other finance income (cost) Dividends Dividend income Dividend The amount of other net income expense. Other Net Income Expense Other net income (expense) Disclosure of income expense from investments table. Disclosure Of Income Expense From Investments [Table] Other Gain (Loss) From Investments Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. Disclosure Of Income Expense From Investments [Line Items] Other gain (loss) from investments Capital gains realized from listing on Stock Exchange Capital gains realized from listing on Stock Exchange The amount of capital gains realized from listing on Stock Exchange. The amount of realized gains (losses) on exchange differences on translation from the business combination recognised in profit or loss. Realized Gains (Losses) on Exchange Differences on Translation from Business Combination Recognised in Profit or Loss Realized exchange differences on translation from the business combination Disclosure of Income Tax Explanatory. Disclosure of Income Tax Explanatory [Table] Income Taxes This member stands for the information pertaining to "Segments other than exploration and production segment". Other subsidiaries Disclosure of Income Tax Explanatory. Disclosure of Income Tax Explanatory [Line Items] Income Taxes No definition available. Current Tax Expense Income [Abstract] Current taxes: Current taxes Current tax expense (income) Net deferred taxes: Deferred tax expense (income) [abstract] Net deferred taxes Deferred tax expense (income) Foreign current income tax expense The amount of foreign current income tax expense. Extraordinary contribution tax enacted Tax effect from change in tax rate Effective tax rate Average effective tax rate Statutory corporation tax charge (credit) on profit or loss Tax expense (income) at applicable tax rate Increase Decrease Tax Expense Income At Applicable Tax Rate [Abstract] Increase Decrease Tax Expense Income At Applicable Tax Rate [Abstract] Increase (decrease) resulting from: - higher tax charges related to subsidiaries outside Italy Tax effect of foreign tax rates Tax effect from additional corporate taxes. Tax Effect of Additional Corporate Taxes Effect of additional Corporate Tax - extraordinary contribution effect for companies in energy sector Amount of impact pursuant to foreign tax effects of italian entities. Impact Pursuant To Foreign Tax Effects Of Italian Entities - impact pursuant to foreign tax effects of italian entities Tax effect of valuation of investments under equity method. Tax Effect of Valuation of Investments Under Equity Method - effect of the valuation of the investments under the equity method The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to the tax regime provided for intercompany dividends. Tax Effect Due To Tax Regime Provided For Inter company Dividends - effect due to the tax regime provided for intercompany dividends The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to regional income tax. Tax Effect Of Regional Income Tax - Italian regional income tax (IRAP) Amount of tax effects related to previous years. Tax Effects Related To Previous Years - tax effects related to previous years The amount representing the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to reversals (impairments) of deferred tax assets. - effect of reversals (impairments) of deferred tax assets Tax effect of reversals (impairments) of deferred tax assets - impact pursuant to (reversal) impairment of deferred tax assets Impact pursuant to the write-down of deferred tax assets and recalculation of tax rates The amount of impact pursuant to the write-down of deferred tax assets and recalculation of tax rates. - other adjustments Other tax effects for reconciliation between accounting profit and tax expense (income) Net tax effect Net Tax Effect The amount of net tax effects during the period for reconciliation between accounting profit and tax expense (income). Dilutive effect of share options on number of ordinary shares Potential shares to be issued for ILT incentive plan Potential shares to be issued for Sustainability-linked bond Dilutive effect of convertible instruments on number of ordinary shares The adjustment to reconcile profit (loss) attributable to the parent entity to the numerator used in calculating earnings (loss) per share, resulting from remuneration on subordinated perpetual bonds, net of tax. Adjustments to profit (loss) for remuneration on subordinated perpetual bonds, net of tax Remuneration of subordinated perpetual bonds net of tax effect The adjustment to reconcile profit (loss) attributable to the parent entity to the numerator used in calculating earnings (loss) per share, resulting from remuneration on sustainability-linked bonds, net of tax. Adjustments to profit (loss) for Remuneration of Sustainability-linked bond net of tax Remuneration of Sustainability-linked bond net of tax effect Disclosure of operating segments [table] Segment consolidation items [axis] Allocated amounts This member stands for the information pertaining to "Allocated amounts". Operating segments Elimination of intersegment amounts Unallocated amounts Disclosure of operating segments [line items] Segment information and information by geographical area Number of general departments The number of new general departments reported in the segment reporting (IFRS 8) by the reporting entity. Number of operating segments have similar economic returns Number of operating segments have similar economic returns The number of operating segments have similar economic returns of the reoprting entity. Impairments of tangible and intangible assets and right-of-use assets Impairment loss recognised in profit or loss Reversal of impairment loss recognised in profit or loss Reversals of tangible and intangible assets and right-of-use assets Write-off of tangible and intangible assets and right-of-use assets The amount of write-off of tangible and intangible assets and right-of-use assets. Write-off of tangible and intangible assets and right-of-use assets Capital expenditure in tangible and intangible assets Additions to non-current assets other than financial instruments, deferred tax assets, net defined benefit assets, and rights arising under insurance contracts Disclosure of geographical areas [table] Material reconciling items Other European Union This member stands for the information pertaining to "Other European Union". Americas Asia Geographical areas Disclosure of geographical areas [line items] Disclosure of transactions between related parties [table] Type of transaction Type of transaction [Axis] Type of transaction Type of transaction [Domain] The member stands for transactions and balances. Transactions and balances Joint ventures and associates and investments in unconsolidated entities controlled by Eni Agiba Petroleum Co This member stands for the information pertaining to "Agiba Petroleum Co". Azule Group [member] This member stands for the information pertaining to "Azule Group". Azule Group Saipem Group This member stands for the information pertaining to "Saipem Group". SeaCorridor Group [member] SeaCorridor Group This member stands for the information pertaining to "SeaCorridor Group". Vargronn Group [member] This member stands for the information pertaining to "Vårgrønn Group". Vårgrønn Group Karachaganak Petroleum Operating BV This member stands for the information pertaining to "Karachaganak Petroleum Operating BV". Mellitah Oil & Gas BV This member stands for the information pertaining to "Mellitah Oil & Gas BV". Petrobel Belayim Petroleum Co This member stands for the information pertaining to "Petrobel Belayim Petroleum Co". Societe Centrale Electrique du Congo SA This member stands for the information pertaining to "Societe Centrale Electrique du Congo SA". Other joint ventures and associates This member stands for the information pertaining to "Other joint ventures and associates". Industria Siciliana Acido Fosforico ISAF SPA This member stands for the information pertaining to "Industria Siciliana Acido Fosforico - ISAF SPA". Other unconsolidated subsidiaries This member stands for the information pertaining to "Other unconsolidated subsidiaries". Entities controlled by the Government This member stands for the information pertaining to "Entities controlled by the Government". Cassa Depositi e Prestiti Group Cassa Depositi e Prestiti Group [member] This member stands for the information pertaining to "Cassa Depositi e Prestiti Group". Enel Group This member stands for the information pertaining to "Enel Group". Italgas Group This member stands for the information pertaining to "Italgas Group". Terna Group This member stands for the information pertaining to "Terna Group". This member stands for the information pertaining to "GSE - Gestore Servizi Energetici". GSE - Gestore Servizi Energetici ITA Airways - Italia Trasporto Aereo SpA [member] This member stands for the information pertaining to "ITA Airways - Italia Trasporto Aereo SpA". ITA Airways - Italia Trasporto Aereo SpA Other entities controlled by government This member stands for the information pertaining to "Other entities controlled by the government". Other related parties Pension funds Eni Foundation This member stands for the information pertaining to "Eni Foundation". Groupement Sonatrach – Eni «GSE» [member] Groupement Sonatrach – Eni «GSE» This member stands for the information pertaining to "Groupement Sonatrach – Eni «GSE»". Transactions With Related Parties Disclosure of transactions between related parties [line items] Receivables and cash and cash equivalents Amounts receivable, related party transactions Receivables Receivables and other assets Payables and other liabilities Payables Amounts payable, related party transactions Guarantees Guarantees, related party transactions The amount of guarantees in related party transactions. Revenues Revenue from sale of goods, related party transactions Costs The amount of services received (rendered) in related party transactions. Services Received (Rendered), Related Party Transactions The amount of other operating (expense) income which recognized as related party transactions. Other Operating Expense Income related Party Transactions Other operating (expense) income Financing transactions This member stands for the information pertaining to "Financing transactions". Coral South FLNG DMCC This member stands for the information pertaining to "Coral South FLNG DMCC". Cash and cash equivalents, Percentage The percentage of impact of related parties from cash and cash equivalents. Cash and cash equivalents, related party impact percentage The percentage of impact of related parties on other non-current financial assets. Other Current Financial Assets Related Party Impact Percentage Other current financial assets, Percentage The percentage of impact of related parties on trade and other receivables. Trade and other receivables Related party impact Percentage Trade and other receivables, Percentage The percentage of impact of related parties on other current assets. Other current assets Related party impact Percentage Other current assets, Percentage The percentage of impact of related parties on other non-current financial assets. Other non current financial assets Related party impact Percentage Other non-current financial assets, Percentage The percentage of impact of related parties on other non-current assets. Other non current assets Related party impact Percentage Other non-current assets, Percentage Short-term debt, Percentage Shortterm debt Related Party Impact Percentage The percentage of related party impact of short-term debt obtained. The percentage of impact of related parties on Current portion of long-term debt. Current Portion Of Long term Borrowings Related Party Impact Percentage Current portion of long-term debt, Percentage Current portion of non-current lease liabilities, Percentage Current Lease Liabilities Related Party Impact Percentage The percentage of impact of related parties on current lease liabilities. The percentage of impact of related parties on trade and other payables. Trade and other payables related party impact Percentage Trade and other payables, Percentage The percentage of impact of related parties on other current liabilities. Other current liabilities related party impact Percentage Other current liabilities, Percentage The percentage of impact of related parties on long-term debt. Long term debt Related Party Impact Percentage Long-term debt, Percentage The percentage of impact of related parties on non-current lease liabilities. Non-Current Lease Liabilities Related Party Impact Percentage Non-current lease liabilities, Percentage The percentage of impact of related parties on Other non-current liabilities. Other non current liabilities Related party impact Percentage Other non-current liabilities, Percentage The percentage of impact of related parties on net sales from operations. Net Sales from Operations Related Party Impact Percentage Sales from operations, Percentage The percentage of impact of related parties on other income and revenues. Other Income and Revenues Related Party Impact Percentage Other income and revenues, Percentage The percentage of impact of related parties on purchases, services and other. Purchases Services and Other Related Party Impact Percentage Purchases, services and other, Percentage Net (impairments) reversals of trade and other receivables, Percentage Impairment Loss Reversal of Impairment Loss Recognised in Profit or Loss Trade Receivables Related Party Impact Percentage The percentage of impact of related parties on impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables.. The percentage of impact of related parties on payroll and related costs. Payroll and Related Costs Related Party Impact Percentage Payroll and related costs, Percentage The percentage of impact of related parties on other operating (expense) income. Other Operating Expense Income Related Party Impact Percentage Other operating income (expense), Percentage The percentage of impact of related parties on financial income. Financial Income Related Party Impact Percentage Financial income, Percentage The percentage of impact of related parties on financial expense. Financial Expense Related Party Impact Percentage Financial expense, Percentage The percentage of impact of related parties from gains (losses) on change in fair value of derivatives. Gains (losses) on change in fair value of derivatives, related party impact percentage Derivative financial instruments, Percentage The percentage of impact of related parties on other income (expense) from investments. Other income (expense) from investments, related party impact percentage Other income (expense) from investments, Percentage The percentage of impact of related parties from cash flows from (used in) operating activities. Cash flows from (used in) operating activities, related party impact percentage Net cash provided from operating activities, Percentage The percentage of impact of cash flows from used in investing activities. Cash Flows From Used In Investing Activities Impact Percentage Net cash used in investing activities, Percentage The percentage of impact of cash flows from used in financing activities. Cash Flows From Used In Financing Activities Impact Percentage Net cash used in financing activities, Percentage Registered office Registered office Address of entity's registered office Registered office Registered office Registered office Disclosure of subsidiaries [table] Subsidiaries One [Member] This member stands for the information pertaining to "Subsidiaries One". Subsidiaries Two [Member] This member stands for the information pertaining to "Subsidiaries Two". Subsidiaries Three [Member] This member stands for the information pertaining to "Subsidiaries Three". Subsidiaries Four [Member] This member stands for the information pertaining to "Subsidiaries Four". Subsidiaries Five [Member] This member stands for the information pertaining to "Subsidiaries Five". Subsidiaries Six [Member] This member stands for the information pertaining to "Subsidiaries Six". Subsidiaries Seven [Member] This member stands for the information pertaining to "Subsidiaries Seven". Subsidiaries Eight [Member] This member stands for the information pertaining to "Subsidiaries Eight". Subsidiaries Nine [Member] This member stands for the information pertaining to "Subsidiaries Nine". Subsidiaries Ten [Member] This member stands for the information pertaining to "Subsidiaries Ten". Subsidiaries Eleven [Member] This member stands for the information pertaining to "Subsidiaries Eleven". Subsidiaries Twelve [Member] This member stands for the information pertaining to "Subsidiaries Twelve". This member stands for subsidiaries thirteen. Subsidiaries Thirteen [Member] Subsidiaries Fourteen [Member] This member stands for the information pertaining to "Subsidiaries Fourteen". Subsidiaries Fifteen [Member] This member stands for the information pertaining to "Subsidiaries Fifteen". Subsidiaries Sixteen [Member] This member stands for the information pertaining to "Subsidiaries Sixteen". Subsidiaries Seventeen [Member] This member stands for the information pertaining to "Subsidiaries Seventeen". Subsidiaries Eighteen [Member] This member stands for the information pertaining to "Subsidiaries Eighteen". Subsidiaries Nineteen [Member] This member stands for the information pertaining to "Subsidiaries Nineteen". Subsidiaries Twenty [Member] This member stands for the information pertaining to "Subsidiaries Twenty". Subsidiaries Twenty One [Member] This member stands for the information pertaining to "Subsidiaries Twenty One". Subsidiaries Twenty Two [Member] This member stands for the information pertaining to "Subsidiaries Twenty Two". Subsidiaries Twenty Three [Member] This member stands for the information pertaining to "Subsidiaries Twenty Three". Subsidiaries Twenty Four [Member] This member stands for the information pertaining to "Subsidiaries Twenty Four". Subsidiaries Twenty Five [Member] This member stands for the information pertaining to "Subsidiaries Twenty Five". Subsidiaries Twenty Six [Member] This member stands for the information pertaining to "Subsidiaries Twenty Six". Subsidiaries Twenty Seven [Member] This member stands for the information pertaining to "Subsidiaries Twenty Seven". This member stands for the information pertaining to "Subsidiaries Twenty Eight". Subsidiaries Twenty Eight [Member] Subsidiaries Twenty Nine [Member] This member stands for the information pertaining to "Subsidiaries Twenty Nine". Subsidiaries Thirty [Member] This member stands for the information pertaining to "Subsidiaries Thirty". Subsidiaries Thirty One [Member] This member stands for the information pertaining to "Subsidiaries Thirty One". Subsidiaries Thirty Two [Member] This member stands for the information pertaining to "Subsidiaries Thirty Two". Subsidiaries Thirty Three [Member] This member stands for the information pertaining to "Subsidiaries Thirty Three". Subsidiaries Thirty Four [Member] This member stands for the information pertaining to "Subsidiaries Thirty Four". Subsidiaries Thirty Five [Member] This member stands for the information pertaining to "Subsidiaries Thirty Five". Subsidiaries Thirty Six [Member] This member stands for the information pertaining to "Subsidiaries Thirty Six". Subsidiaries Thirty Seven [Member] This member stands for the information pertaining to "Subsidiaries Thirty Seven". Subsidiaries Thirty Eight [Member] This member stands for the information pertaining to "Subsidiaries Thirty Eight". Subsidiaries Thirty Nine [Member] This member stands for the information pertaining to "Subsidiaries Thirty Nine". Subsidiaries Forty [Member] This member stands for the information pertaining to "Subsidiaries Forty". Subsidiaries Forty One [Member] This member stands for the information pertaining to "Subsidiaries Forty One". Subsidiaries Forty Two [Member] This member stands for the information pertaining to "Subsidiaries Forty Two". Subsidiaries Forty Three [Member] This member stands for the information pertaining to "Subsidiaries Forty Three". Subsidiaries Forty Four [Member] This member stands for the information pertaining to "Subsidiaries Forty Four". Subsidiaries Forty Five [Member] This member stands for the information pertaining to "Subsidiaries Forty Five". Subsidiaries Forty Six [Member] This member stands for the information pertaining to "Subsidiaries Forty Six". Subsidiaries Forty Seven [Member] This member stands for the information pertaining to "Subsidiaries Forty Seven". Subsidiaries Forty Eight [Member] This member stands for the information pertaining to "Subsidiaries Forty Eight". Subsidiaries Forty Nine [Member] This member stands for the information pertaining to "Subsidiaries Forty Nine". Subsidiaries Fifty [Member] This member stands for the information pertaining to "Subsidiaries Fifty". Subsidiaries Fifty One [Member] This member stands for the information pertaining to "Subsidiaries Fifty One". Subsidiaries Fifty Two [Member] This member stands for the information pertaining to "Subsidiaries Fifty Two". Subsidiaries Fifty Three [Member] This member stands for the information pertaining to "Subsidiaries Fifty Three". Subsidiaries Fifty Four [Member] This member stands for the information pertaining to "Subsidiaries Fifty Four". Subsidiaries Fifty Five [Member] This member stands for the information pertaining to "Subsidiaries Fifty Five". Subsidiaries Fifty Six [Member] This member stands for the information pertaining to "Subsidiaries Fifty Six". Subsidiaries Fifty Seven [Member] This member stands for the information pertaining to "Subsidiaries Fifty Seven". Subsidiaries Fifty Eight [Member] This member stands for the information pertaining to "Subsidiaries Fifty Eight". Subsidiaries Fifty Nine [Member] This member stands for the information pertaining to "Subsidiaries Fifty Nine". Subsidiaries Sixty [Member] This member stands for the information pertaining to "Subsidiaries Sixty". Subsidiaries Sixty One [Member] This member stands for the information pertaining to "Subsidiaries Sixty One". Subsidiaries Sixty Two [Member] This member stands for the information pertaining to "Subsidiaries Sixty Two". Subsidiaries Sixty Three [Member] This member stands for the information pertaining to "Subsidiaries Sixty Three". Subsidiaries Sixty Four [Member] This member stands for the information pertaining to "Subsidiaries Sixty Four". Subsidiaries Sixty Five [Member] This member stands for the information pertaining to "Subsidiaries Sixty Five". This member stands for the information pertaining to "Subsidiaries Sixty Six". Subsidiaries Sixty Six [Member] Subsidiaries Sixty Seven [Member] This member stands for the information pertaining to "Subsidiaries Sixty Seven". Subsidiaries Sixty Eight [Member] This member stands for the information pertaining to "Subsidiaries Sixty Eight". Subsidiaries Sixty Nine [Member] This member stands for the information pertaining to "Subsidiaries Sixty Nine". Subsidiaries Seventy [Member] This member stands for the information pertaining to "Subsidiaries Seventy". Subsidiaries Seventy One [Member] This member stands for the information pertaining to "Subsidiaries Seventy One". Subsidiaries Seventy Two [Member] This member stands for the information pertaining to "Subsidiaries Seventy Two". This member stands for the information pertaining to "Subsidiaries Seventy Three". Subsidiaries Seventy Three [Member] Subsidiaries Seventy Four [Member] This member stands for the information pertaining to "Subsidiaries Seventy Four". Subsidiaries Seventy Five [Member] This member stands for the information pertaining to "Subsidiaries Seventy Five". Subsidiaries Seventy Six [Member] This member stands for the information pertaining to "Subsidiaries Seventy Six". Subsidiaries Seventy Seven [Member] This member stands for the information pertaining to "Subsidiaries Seventy Seven". Subsidiaries Seventy Eight [Member] This member stands for the information pertaining to "Subsidiaries Seventy Eight". Subsidiaries Seventy Nine [Member] This member stands for the information pertaining to "Subsidiaries Seventy Nine". Subsidiaries Eighty [Member] This member stands for the information pertaining to "Subsidiaries Eighty". Subsidiaries Eighty One [Member] This member stands for the information pertaining to "Subsidiaries Eighty One". Subsidiaries Eighty Two [Member] This member stands for the information pertaining to "Subsidiaries Eighty Two". Subsidiaries Eighty Three [Member] This member stands for the information pertaining to "Subsidiaries Eighty Three". Subsidiaries Eighty Four [Member] This member stands for the information pertaining to "Subsidiaries Eighty Four". Subsidiaries Eighty Five [Member] This member stands for the information pertaining to "Subsidiaries Eighty Five". Subsidiaries Eighty Six [Member] This member stands for the information pertaining to "Subsidiaries Eighty Six". Subsidiaries Eighty Seven [Member] This member stands for the information pertaining to "Subsidiaries Eighty Seven". Subsidiaries Eighty Eight [Member] This member stands for the information pertaining to "Subsidiaries Eighty Eight". Subsidiaries Eighty Nine [Member] This member stands for the information pertaining to "Subsidiaries Eighty Nine". Subsidiaries Ninety [Member] This member stands for the information pertaining to "Subsidiaries Ninety". Subsidiaries Ninety One [Member] This member stands for the information pertaining to "Subsidiaries Ninety One". Subsidiaries Ninety Two [Member] This member stands for the information pertaining to "Subsidiaries Ninety Two". Subsidiaries Ninety Three [Member] This member stands for the information pertaining to "Subsidiaries Ninety Three". Subsidiaries Ninety Four [Member] This member stands for the information pertaining to "Subsidiaries Ninety Four". Subsidiaries Ninety Five [Member] This member stands for the information pertaining to "Subsidiaries Ninety Five". Subsidiaries Ninety Six [Member] This member stands for the information pertaining to "Subsidiaries Ninety Six". Subsidiaries Ninety Seven [Member] This member stands for the information pertaining to "Subsidiaries Ninety Seven". Subsidiaries Ninety Eight [Member] This member stands for the information pertaining to "Subsidiaries Ninety Eight". This member stands for the information pertaining to "Subsidiaries Hundred Forty Two". Subsidiaries Hundred Forty Two [Member] Subsidiaries Ninety Nine [Member] This member stands for the information pertaining to "Subsidiaries Ninety Nine". Subsidiaries Hundred One [Member] This member stands for the information pertaining to "Subsidiaries Hundred One". Subsidiaries Hundred Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Two". Subsidiaries Hundred Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Three". Subsidiaries Hundred Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Four". Subsidiaries Hundred Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Five". Subsidiaries Hundred Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Six". Subsidiaries Hundred Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seven". Subsidiaries Hundred Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eight". Subsidiaries Hundred Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Nine". Subsidiaries Hundred Ten [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ten". Subsidiaries Hundred Eleven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eleven". Subsidiaries Hundred Twelve [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twelve". Subsidiaries Hundred Thirteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirteen". Subsidiaries Hundred Fourteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fourteen". Subsidiaries Hundred Fifteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifteen". Subsidiaries Hundred Sixteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixteen". Subsidiaries Hundred Seventeen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventeen". Subsidiaries Hundred Eighteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighteen". Subsidiaries Hundred Nineteen [Member] This member stands for the information pertaining to "Subsidiaries Hundred Nineteen". Subsidiaries Hundred Twenty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty". Subsidiaries Hundred Twenty One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty One". Subsidiaries Hundred Twenty Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Two". Subsidiaries Hundred Twenty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Three". Subsidiaries Hundred Twenty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Four". Subsidiaries Hundred Twenty Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Five". Subsidiaries Hundred Twenty Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Six". Subsidiaries Hundred Twenty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Seven". Subsidiaries Hundred Twenty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Eight". Subsidiaries Hundred Twenty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Twenty Nine". Subsidiaries Hundred Thirty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty". Subsidiaries Hundred Thirty One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty One". Subsidiaries Hundred Thirty Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Two". Subsidiaries Hundred Thirty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Three". Subsidiaries Hundred Thirty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Four". Subsidiaries Hundred Thirty Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Five". Subsidiaries Hundred Thirty Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Six". Subsidiaries Hundred Thirty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Seven". Subsidiaries Hundred Thirty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Eight". Subsidiaries Hundred Thirty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Thirty Nine". Subsidiaries Hundred Forty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty". Subsidiaries Hundred Forty One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty One". Eni International BV This member stands for the information pertaining to "Eni International BV". Ieoc Exploration BV This member stands for the information pertaining to "Ieoc Exploration BV". This member stands for Ieoc Production BV. Ieoc Production BV Eni Oil Holdings BV This member stands for the information pertaining to "Eni Oil Holdings BV". The member stands for Burren Energy PLC. Burren Energy Plc The member stands for Eni UK Holding PLC. Eni UK Holding Plc Eni UK Ltd This member stands for the information pertaining to "Eni UK Ltd". The member stands for Eni Indonesia Ltd. Eni Indonesia Ltd The member stands for Eni UHL Ltd. Eni UHL Ltd The member stands for Eni Petroleum Co Inc. Eni Petroleum Co Inc Eni Lasmo Plc This member stands for the information pertaining to "Eni Lasmo Plc". Eni Algeria Exploration BV [Member] Eni Algeria Expl.BV This member stands for the information pertaining to "Eni Algeria Exploration BV". Eni IS Exploration Ltd [Member] This member stands for the information pertaining to "Eni IS Exploration Ltd". Eni IS Exploration Ltd The member stands for Eni ULX Ltd. Eni ULX Ltd The member stands for Eni Investments Plc. Eni Investments Plc The member stands for Eni ULT Ltd. Eni ULT Ltd The member stands for Eni America Ltd. Eni America Ltd The member stands for Eni BB Petroleum Inc. Eni BB Petroleum Inc The member stands for Eni Mozambique LNG Holding BV. Eni Mozambique LNG Holding BV The member stands for Eni Marketing Inc. Eni Marketing Inc Eni Oil & Gas Inc This member stands for the information pertaining to "Eni Oil & Gas Inc". The member stands for Eni Venezuela E And P Holding. Eni Venezuela E&P Holding EniProgetti SpA This member stands for the information pertaining to "EniProgetti SpA". The member stands for Eni Algeria Ltd Sarl. Eni Algeria Ltd Sarl Eni Canada Hold. Ltd This member stands for the information pertaining to "Eni Canada Hold. Ltd". The member stands for FCP Partner Co ULC. FCP Partner Co ULC This member stands for agip en nat res ltd. Agip En Nat Res. Ltd Nigerian Agip E. Ltd This member stands for the information pertaining to "Nigerian Agip E. Ltd". Eni Energy Russia BV This member stands for the information pertaining to "Eni Energy Russia BV". Eni Congo SA This member stands for the information pertaining to "Eni Congo SA". Subsidiaries Disclosure of subsidiaries [line items] Company name Company name Name of subsidiary Country of operation Country of operation Principal place of business of subsidiary % Equity ratio Percentage of equity ratio The percentage of equity ratio. Consolidation or valuation method Consolidation or valuation method Method used to account for investments in subsidiaries This member stands for lng shipping spa. LNG Shipping SpA This member stands for trans tunis p co spa. Trans Tunis P Co SpA Eni Corridor Srl Third parties This member stands for the information pertaining to "Eni Corridor Srl Third parties". Eni Corridor Srl Third parties [member] This member stands for chemicals. Chemicals This member stands for Ecofuel SpA. Ecofuel SpA Represents the information pertaining to EniBioCh4in SpA. EniBioCh4in SpA This member stands for esain sa. Esain SA This member stands for Eni Abu Dhabi R&T BV. Eni Abu Dhabi R&T BV Eni Deutsch.GmbH This member stands for Eni Deutsch.GmbH. This member stands for Eni Minerallh.GmbH. Eni Mineralolh.GmbH Eni Austria GmbH This member stands for the information pertaining to "Eni Austria GmbH". Represents the information pertaining to ET&B SpA. ET&B SpA This member stands for eni ecuador sa. Eni Ecuador SA [member] Eni Ecuador SA This member stands for versalis deutsch gmbh. Versalis Deutsch GmbH Versalis International SA This member stands for versalis int sa. Padanaplast Srl This member stands for the information pertaining to "Padanaplast Srl". This member stands for dunastyr zrt. Dunastyr Zrt This member stands for versalis france. Versalis France This member stands for the information pertaining to "Versalis Sing P Ltd". Versalis Singapore P. Ltd EniPower SpA This member stands for the information pertaining to "EniPower SpA". This member stands for the information pertaining to "BioBag International AS". BioBag International BioBag International [Member] Represents the information pertaining to Finproject Asia Ltd. Finproject Asia Ltd Represents the information pertaining to Asian Compounds Ltd. Asian Compounds Ltd Represents the information pertaining to Foam Creations (2008). Foam Creations (2008) Eni Sustainable Mobility Spa [member] This member stands for the information pertaining to "Eni Abu Dhabi Refining and Trading Services BV". Eni Sust. Mobility SpA This member stands for Power segment. Power Eni Plenitude Solar Srl [Member] Eni Plen. Solar Srl This member stands for the information pertaining to "Eni Plenitude Solar Srl". SEF Solar Srl [Member] SEF Solar Srl [Member] SEF Solar Srl Eni Plenitude Wind 2020 Srl [Member] Eni Plen. Wind 2020 Srl This member stands for the information pertaining to "Eni Plenitude Wind 2020 Srl". Eni Plenitude S and M Italia Srl [Member] Eni Plen. S&M Italia Srl This member stands for the information pertaining to "Eni Plenitude S and M Italia Srl". Eni Plenitude Wind 2022 SpA [Member] Eni Plen. Wind 2022 SpA This member stands for the information pertaining to "Exploration activities in Gabon". Eni Plenitude Wind and Energy Srl [Member] Eni Plen. Wind & En. Srl This member stands for the information pertaining to "Eni Plenitude Wind and Energy Srl". PLT Energia Srl [Member] This member stands for the information pertaining to "PLT Energia Srl". PLT Energia Srl SEF Green Srl SEF Green Srl [Member] This member stands for the information pertaining to "SEF Green Srl". Faren Srl [Member] This member stands for the information pertaining to "Faren Srl". Faren Srl This member stands for the information pertaining to "Eni Plenitude Operations France SAS". Eni Plenitude Operations France SAS [member] Eni Plen. Op. Fr. SAS Soc. Agr. Agricentro Srl This member stands for the information pertaining to "Societa Agricola Agricentro Srl". Societa Agricola Agricentro Srl [member] This member stands for the information pertaining to "Eni Plenitude Technical Services Spain SLU ". Eni Plen. T. S. Spain Eni Plenitude Technical Services Spain SLU [Member] HLS Bonete Topco SLU [Member] HLS Bonete Topco SLU This member stands for the information pertaining to "HLS Bonete Topco SLU". This member stands for the information pertaining to "Brazoria HoldCo Llc". Brazoria HoldCo Llc Brazoria HoldCo Llc [Member] Corazon Tax Equity Partnership Llc [member] Corazon Tax Eq. Part. Llc This member stands for the information pertaining to "Corazon Tax Equity Partnership Llc". Corazon Energy Class B Llc [member] Corazon En. Class B Llc This member stands for the information pertaining to "Corazon Energy Class B Llc". Eni New Energy Australia Pty Ltd [member] Eni New En. Aus. Pty Ltd This member stands for the information pertaining to "Eni New Energy Australia Pty Ltd". Eni New Energy US Investing Inc [member] This member stands for the information pertaining to "Eni New Energy US Investing Inc". Eni New Energy US Inv. Inc Eni Plenitude Investment Spain SL [Member] This member stands for the information pertaining to "Eni Plenitude Investment Spain SL". Eni Plen. Inv. Spain SL Eni New Energy US Holding Llc [member] Eni New Energy US H. Llc This member stands for the information pertaining to "Eni New Energy US Holding Llc". Eni Plenitude Investment Colombia SAS [Member] Eni Plen. Inv. Colombia This member stands for the information pertaining to "Eni Plenitude Investment Colombia SAS". This member stands for the information pertaining to "Holding Lanas Solar Sàrl". Holding Lanas Solar Sàrl Holding Lanas Solar Sarl [Member] Eni Plenitude Renewables Spain SLU [Member] Eni Plen. Ren. Spain SLU This member stands for the information pertaining to "Eni Plenitude Renewables Spain SLU". Eni Plenitude Technical Services Srl [Member] Eni Plen. Tech. Serv. Srl This member stands for the information pertaining to "Eni Plenitude Technical Services Srl". Ruggiero Wind Srl [Member] Ruggiero Wind Srl This member stands for the information pertaining to "Ruggiero Wind Srl". This member stands for the information pertaining to "Micropower Srl". Micropower Srl Micropower Srl [Member] Eni Plenitude Renewables Hellas Single Member SA [member] Eni Plen. Renew. Hellas This member stands for the information pertaining to "Eni Plenitude Renewables Hellas Single Member SA". Eni Plenitude Renewables Luxembourg Sarl [member] Eni Plen. Ren. Lux. Sàrl This member stands for the information pertaining to "Eni Plenitude Renewables Luxembourg Sarl". This member stands for Eni Pakistan Ltd (M). Eni Pakistan Ltd (M) Evolvere SpA Soc. Ben. Evolvere SpA Societa Benefit [member] This member stands for Evolvere SpA Soc.Ben. Eni Plenitude Solar III Srl [Member] Eni Plen. Solar III Srl This member stands for the information pertaining to "Eni Plenitude Solar III Srl". Represents the information pertaining to Eni gas e luce SpA SB. Eni gas e luce SpA SB Represents the information pertaining to Be Be Charge Srl. Be Charge Srl This memeber stands for Eni New Energy SpA. Eni New Energy SpA Represents the information pertaining to SER SpA. SER SpA Represents the information pertaining to CEF 3 Wind Energy. CEF 3 Wind Energy Dhamma Energy SAS This member stands for the information pertaining to "Dhamma Energy SAS". Eni En. Solutions BV Eni Energy Solutions BV This member stands for Eni Energy Solutions BV. Represents the information pertaining to Krypton SAS. Krypton SAS Represents the information pertaining to Xenon SAS. Xenon SAS Represents the information pertaining to Brazoria Class B. Brazoria Class B Kellam Solar Class B Llc [Member] Kellam Solar Class B This member stands for the information pertaining to "Kellam Solar Class B Llc". Kellam Tax Equity Partnership Llc [Member] Kellam Tax Eq. Partn. This member stands for the information pertaining to "Kellam Tax Equity Partnership Llc". Holding Lanas Solar This member stands for the information pertaining to "Holding Lanas Solar". This member stands for the information pertaining to "Energias Ambientales de Outes SLU". Energias Ambientales de Outes SLU [member] Energias Amb. Outes This member stands for the information pertaining to "Desarrollos Energeticos Riojanos SL". Desarrollos Energeticos Riojanos SL [member] Desarrollos Energéticos Corporate and financial companies This member stands for the information pertaining to "Corporate and financial companies". This member stands for other activities. Other activities Eniverse Ventures Srl [Member] Eniverse This member stands for the information pertaining to "Eniverse Ventures Srl". This member stands for D-Share SpA. D-Share SpA This member stands for Agi SpA. AGI SpA This member stands for eni north africa bv. Eni North Africa BV Method Used To Account For Investments In Joint Arrangements And Associates Consolidation or valuation method These lines are represents that methods used to account for investments in joint arrangements and associates. Represents the information pertaining to Damietta LNG SAE. Damietta LNG Eni Gas Liquefaction BV [member] This member stands for the information pertaining to "Eni Gas Liquefaction BV". Eni Gas Liquef. BV Supermetanol CA This member stands for the information pertaining to "Supermetanol CA". Non controlling interest (%) (as a percent) Percentage of shares held by third party Proportion of ownership interests held by non-controlling interests Revenues Revenue Dividends paid to minority interest Dividends paid to non-controlling interests GreenStream BV This member stands for the information pertaining to "GreenStream BV". This member stands for raff milazzo scpa. Raffineria di Milazzo ScpA Company name Name of joint venture Company name Name of joint operation Company name Name of associate Principal place of business of joint venture Country of operation Country of operation Principal place of business of joint operation Country of operation Principal place of business of associate Business segment Business Segment The description of the business segment. Eni's % of the investment Proportion of voting rights held in joint operation - of which cash and cash equivalent Other cash and cash equivalents - of which current financial liabilities Other current financial liabilities Other non-current financial liabilities - of which non-current financial liabilities Dividends received from the associates Dividends received from the joint venture Dividends received Capital gain on disposal of investment Gains on disposals of investments Gains on disposals of subsidiary Disclosure of non-adjusting events after reporting period [table] Non-adjusting events after reporting period [axis] Major business combination Major business combination [member] Energy Infrastructure Partners [member] Energy Infrastructure Partners (EIP) This member stands for the information pertaining to "Energy Infrastructure Partners (EIP)". Disclosure of non-adjusting events after reporting period [line items] Business Combination, Purchase Price of Acquisition, Expected Business Combination, Purchase Price of Acquisition, Expected The amount of purchase price of expected business acquisition prior to consideration being transferred. Share capital value expected after capital increase Share capital value expected after capital increase The amount of share capital value expected, after capital increase. Finance Expenses Associates [domain] Business combinations [domain] Range [domain] Classes of share capital [domain] Components of equity [domain] Types of share-based payment arrangements [domain] Types of interest rates [domain] Joint ventures [domain] Segment consolidation items [domain] Joint operations [domain] Maturity [domain] Classes of financial liabilities [domain] Types of risks [domain] Timing of transfer of goods or services [domain] Types of financial assets [domain] Types of financial liabilities [domain] Types of hedges [domain] Classes of financial instruments [domain] Hedged items [domain] Classes of other provisions [domain] Classes of financial assets [domain] Levels of fair value hierarchy [domain] Defined benefit plans [domain] Temporary difference, unused tax losses and unused tax credits [domain] Net defined benefit liability (asset) [domain] Products and services [domain] Liabilities arising from financing activities [domain] Borrowings by name [domain] Actuarial assumptions [domain] Categories of financial assets [domain] Classes of intangible assets and goodwill [domain] Classes of assets [domain] Unconsolidated subsidiaries [domain] Counterparties [domain] Major customers [domain] Past due status [domain] Internal credit grades [domain] Continuing involvement in derecognised financial assets by type of transfer [domain] Classes of contingent liabilities [domain] Cash-generating units [domain] Property, plant and equipment by operating lease status [domain] Impairment of financial assets [domain] Non-adjusting events after reporting period [domain] Subsidiaries [domain] Geographical areas [domain] Categories of related parties [domain] Segments [domain] 2029 and thereafter Schedule of interests in joint operations Enilive and Plenitude [Member] Enilive and Plenitude This member stands for the information pertaining to "Enilive and Plenitude" Disclosure Of Detailed Information About Consolidated Subsidiaries With Significant Non Controlling Interest Table Text Block Disclosure of detailed information about consolidated subsidiaries with significant non-controlling interest [Table Text Block] Schedule of detailed information about consolidated subsidiaries with significant non-controlling interest Disclosure Of Detailed Information About Principal Joint Ventures Joint Operations And Associates Text Block Disclosure Of Detailed Information About Principal Joint Ventures Joint Operations And Associates [Text Block] Schedule of detailed information about principal joint ventures joint operations and associates Global Gas & LNG Portfolio and Power This member stands for the information pertaining to "Global Gas and LNG Portfolio and Power Segment". Refining and Chemicals This member stands for the information pertaining to "Refining and Chemicals Segment". Global Gas and LNG Portfolio and Power Segment [Member] Refining and Chemicals Segment [Member] Subsidiaries Hundred Forty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Three". Subsidiaries Hundred Forty Three [Member] Subsidiaries Hundred Forty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Four". Subsidiaries Hundred Forty Four [Member] Subsidiaries Hundred Forty Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Five". Subsidiaries Hundred Forty Five [Member] Subsidiaries Hundred Forty Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Six". Subsidiaries Hundred Forty Six [Member] Subsidiaries Hundred Forty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Seven". Subsidiaries Hundred Forty Seven [Member] Subsidiaries Hundred Forty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Eight". Subsidiaries Hundred Forty Eight [Member] Burren Energy (Bermuda) Ltd [Member] This member stands for the information pertaining to "Burren Energy (Bermuda) Ltd". Burren En.(Berm) Ltd Eni Exploration and Production Holding BV [Member] Eni E&P Holding BV This member stands for the information pertaining to "Eni Exploration and Production Holding BV". Eni US Operating Co Inc [Member] This member stands for the information pertaining to "Eni US Operating Co Inc". Eni US Op. Co Inc Nigerian Agip Oil Company Ltd. [member] Nigerian Agip Oil Company Ltd. [member] Nigerian Agip Oil Company Ltd Member This member stands for the information pertaining to "Nigerian Agip Oil Company Ltd". NAOC Ltd This member stands for the information pertaining to "Eni Energy Holding Netherlands BV". Eni En. Holding NL BV Eni Energy Australia Pty Ltd [Member] This member stands for the information pertaining to "Eni Energy Australia Pty Ltd". Eni En. Australia Pty Ltd Eni Energy Group Midco Ltd [Member] This member stands for the information pertaining to "Eni Energy Group Midco Ltd". Eni En. Group Midco Ltd Eni Energy Finance Ltd [Member] This member stands for the information pertaining to "Eni Energy Finance Ltd". Eni Energy Finance Ltd Eni Energy Exploration and Production Holding Netherlands BV [Member] This member stands for the information pertaining to "Eni Energy Exploration and Production Holding Netherlands BV". Eni En. E&P Hold. NL BV Eni Energy Group Holdings Ltd [Member] This member stands for the information pertaining to "Eni Energy Group Holdings Ltd". Eni Energy Group H. Ltd Eni Energy International SAS [Member] This member stands for the information pertaining to "Eni Energy International SAS". Eni En. International SAS Eni Energy Group Ltd [Member] This member stands for the information pertaining to "Eni Energy Group Ltd". Eni Energy Group Ltd Eni Energy Netherlands BV [Member] This member stands for the information pertaining to "Eni Energy Netherlands BV". Eni Energy NL BV Eni Energy Holding Netherlands BV [Member] Refining Segment [Member] Refining This member stands for the information pertaining to "Refining Segment". Versalis Asia Pacific Pte Ltd [Member] This member stands for the information pertaining to "Versalis Asia Pacific Pte Ltd". Versalis Asia Pacific Retrospective application and retrospective restatement [axis] Currently stated [member] Previously stated [member] As reported Committed borrowing facilities Non-current financing receivables not included in net borrowings The amount of non-current financing receivables not included in net borrowings. Non Current Financing Receivables Not Included In Net Borrowings Book value of put option The amount of book value of put option. Book Value Of Put Option Atenoil companies This member stands for the information pertaining to "Atenoil Companies". Atenoil Companies [Member] Number of groups comprised in a single business unit The number of groups comprised in a single business unit reported in the segment reporting (IFRS 8) by the reporting entity. Number of Groups Comprised in Single Business Unit Number of companies linked to the energy transition The number of companies linked to the energy transition reported in the segment reporting (IFRS 8) by the reporting entity. Number of Companies Linked to Energy Transition Long-term financing receivables This member stands for the information pertaining to "Long-term financing receivables held for non operating purposes". Long Term Financing Receivables Held For Non Operating Purposes [Member] Short-term financing receivables This member stands for the information pertaining to "Short-term financing receivables held for non operating purposes". Short Term Financing Receivables Held For Non Operating Purposes [Member] Enilive This member stands for the information pertaining to "Enilive Segment". Enilive Segment [Member] Aten Oil SLU [Member] This member stands for the information pertaining to "Aten Oil SLU". Aten Oil SLU Aten Oil Setor SLU [Member] Aten Oil Setor SLU This member stands for the information pertaining to "Aten Oil Setor SLU". Enilive Iberia SLU [Member] Enilive Iberia SLU This member stands for the information pertaining to "Enilive Iberia SLU". Enilive Deutschland GmbH [Member] Enilive Deutsch. GmbH This member stands for the information pertaining to "Enilive Deutschland GmbH". Enimoov Austria GmbH [Member] Enimoov Austria GmbH This member stands for the information pertaining to "Enimoov Austria GmbH". Enilive Austria GmbH [Member] This member stands for the information pertaining to "Enilive Austria GmbH". Enilive Austria GmbH Eni Plenitude Renewables Italy SpA [Member] This member stands for the information pertaining to "Eni Plenitude Renewables Italy SpA". Eni Plen. Ren. Italy SpA Plenitude Energy Services SpA [Member] This member stands for the information pertaining to "Plenitude Energy Services SpA". Plen. En. Serv. SpA Ithaca Energy Plc This member stands for the information pertaining to "Ithaca Energy Plc". Ithaca Energy Plc [Member] Purchase price goodwill recognition Nigerian Agip Oil Company Ltd. Capitalized direct cost associated with self-constructed assets - tangible assets The amount of capitalized direct cost associated with self-constructed tangible assets, relating to depreciation in relation to leases. Capitalized Direct Cost Associated With Self Constructed Tangible Assets Relating To Depreciation Current contract assets Non-current contract assets Contract assets, current Contract assets, non-current Current assets Net borrowings Subsidiaries Hundred Forty Nine [Member] Subsidiaries Hundred Forty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Forty Nine". Subsidiaries Hundred Fifty [Member] Subsidiaries Hundred Fifty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty". Subsidiaries Hundred Fifty One [Member] Subsidiaries Hundred Sixty Three [Member] Subsidiaries Hundred Sixty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty Three". Subsidiaries Hundred Fifty Three [Member] Subsidiaries Hundred Fifty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Three". Subsidiaries Hundred Fifty Four [Member] Subsidiaries Hundred Fifty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Four". Subsidiaries Hundred Fifty Five [Member] Subsidiaries Hundred Fifty Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Five". Subsidiaries Hundred Fifty Six [Member] Subsidiaries Hundred Fifty Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Six". Subsidiaries Hundred Fifty Seven [Member] Subsidiaries Hundred Fifty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Seven". Subsidiaries Hundred Fifty Eight [Member] Subsidiaries Hundred Fifty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Eight". Subsidiaries Hundred Fifty Nine [Member] Subsidiaries Hundred Fifty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Nine". Subsidiaries Hundred Sixty [Member] Subsidiaries Hundred Sixty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty". Subsidiaries Hundred Sixty One [Member] Subsidiaries Hundred Sixty One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty One". Current and non-current liabilities Disclosure of joint operations [table] Joint Operations One [Member] Joint Operations One [Member] This member stands for the information pertaining to "Joint Operations One". Joint Operations Two [Member] Joint Operations Two [Member] This member stands for the information pertaining to "Joint Operations Two". Joint Operations Three [Member] Joint Operations Three [Member] This member stands for the information pertaining to "Joint Operations Three". Joint Operations Four [Member] Joint Operations Four [Member] This member stands for the information pertaining to "Joint Operations Four". Joint Operations Five [Member] Joint Operations Five [Member] This member stands for the information pertaining to "Joint Operations Five". Joint Operations Six [Member] Joint Operations Six [Member] This member stands for the information pertaining to "Joint Operations Six". Joint Operations Seven [Member] Joint Operations Seven [Member] This member stands for the information pertaining to "Joint Operations Seven". Joint Operations Eight [Member] Joint Operations Eight [Member] This member stands for the information pertaining to "Joint Operations Eight". Joint Operations Nine [Member] Joint Operations Nine [Member] This member stands for the information pertaining to "Joint Operations Nine". Joint Operations Ten [Member] Joint Operations Ten [Member] This member stands for the information pertaining to "Joint Operations Ten". Joint Operations Eleven [Member] This member stands for the information pertaining to "Joint Operations Eleven". Joint Operations Eleven [Member] Company name Disclosure of joint operations [line items] Subsidiaries Hundred [Member] % Ownership Subsidiaries Hundred Fifty Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Fifty Two". Subsidiaries Hundred Fifty Two [Member] Country of incorporation of joint operation Country of operation Subsidiaries Hundred Sixty Seven [Member] Subsidiaries Hundred Sixty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty Seven". Subsidiaries Hundred Sixty Eight [Member] Subsidiaries Hundred Sixty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty Eight". Subsidiaries Hundred Sixty Nine [Member] Subsidiaries Hundred Sixty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Sixty Nine". Subsidiaries Hundred Seventy [Member] Subsidiaries Hundred Seventy [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy". Subsidiaries Hundred Seventy Three [Member] Subsidiaries Hundred Seventy Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Three". Subsidiaries Hundred Seventy Four [Member] Subsidiaries Hundred Seventy Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Four". Eni Plenitude Storage Italy Srl [Member] Eni Plen. St. Italy Srl This member stands for the information pertaining to "Eni Plenitude Storage Italy Srl". Eni Plenitude Investment Spain SLU [Member] Eni Plen. Inv. Spain SLU This member stands for the information pertaining to "Eni Plenitude Investment Spain SLU". Subsidiaries Hundred Seventy Five [Member] Subsidiaries Hundred Seventy Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Five". Subsidiaries Hundred Sixty Two [Member] Subsidiaries Hundred Sixty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Two". Subsidiaries Hundred Seventy Two [Member] Subsidiaries Hundred Seventy Two [Member] Subsidiaries Hundred Sixty Five [Member] Subsidiaries Hundred Sixty Six [Member] Subsidiaries Hundred Seventy One [Member] Cybersecurity Risk Management, Strategy, and Governance [Abstract] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Management Processes Integrated [Text Block] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Cybersecurity Risk Board of Directors Oversight [Text Block] Down payments and advances from joint ventures in exploration & production activities This member stands for the information pertaining to "Subsidiaries Hundred". Nominal amount of the hedging instrument Change of the underlying asset used for the calculation of hedging ineffectivenes Reclassification adjustments Damietta LNG (DLNG) SAE Trade and other non-current payables [abstract] K. Non‐current trade and other payables Reimbursement receivable for past environmental expenses, net of discounting factor Reimbursement receivable for past environmental expenses, net of discounting factor The amount of reimbursement receivable for past environmental expenses, net of discounting factor upon agreement. Reimbursement receivable for past environmental expenses, Percentage of costs Reimbursement receivable for past environmental expenses, Percentage of costs (as a percent) The percentage of costs for reimbursement receivable for past environmental expenses upon agreement. Reimbursement receivable for past environmental expenses, before discounting, net of restorations of provisions previously accounted Reimbursement receivable for past environmental expenses, before discounting, net of restorations of provisions previously accounted The amount of reimbursement receivable for past environmental expenses, before discounting, net of restorations of provisions previously accounted upon agreement. Other bonds Seven [Member] Other bonds Seven This member stands for the information pertaining to "Other bonds Seven". Financial liabilities Fair value of derivative instruments Financial guarantees Fair value hedge derivatives Non-current financial assets Net debt Total net financial debt Non‐current financial assets All other segments [member] Others This member stands for the information pertaining to "E and E Algeria Touat BV". E&E Algeria Touat BV E and E Algeria Touat BV [Member] 2023 Sol IX Llc This member stands for the information pertaining to "2023 Sol IX Llc". Two Thousand and Sol IX Llc [Member] Mangistau Power B.V This member stands for the information pertaining to "Mangistau Power B.V". Mangistau Power B.V [Member] Mangistau Renewables B.V. This member stands for the information pertaining to "Mangistau Renewables B.V.". Mangistau Renewables B.V. [Member] 2022 Sol VII Llc This member stands for the information pertaining to "2022 Sol VII Llc". Two Thousand and Twenty Two Sol VII Llc [Member] Other Eni Natural Energies SpA [Member] This member stands for the information pertaining to "Eni Natural Energies SpA". Eni Natural Energ. SpA Eni Marine Services SpA [Member] This member stands for the information pertaining to "Eni Marine Services SpA". Eni Marine Services SpA Share Repurchase Program, 1 [Member] This member stands for the information pertaining to "Share Repurchase Program, 1". 2024 buy-back plan Share Repurchase Program [Axis] Share Repurchase Program [Domain] Percentage of shares purchased under share repurchase program The percentage of shares purchased under share repurchase program by the reporting entity. Percentage of shares purchased under buy-back plan Share Repurchase Program, Authorized, Amount Share buy-back plan, Authorized amount Ordinary Bonds Issued in Current Year [Member] This member stands for the information pertaining to "Ordinary Bonds Issued in Current Year". Ordinary Bonds issued in current year LG-Eni BioRefining Co Ltd [Member] This member stands for the information pertaining to "LG-Eni BioRefining Co Ltd". LG-Eni BioRefining Co Ltd Cumulative unrecognised share of losses of joint ventures Cumulative unrecognised share of losses of associates Market value vs Book value of joint venture Market value vs Book value of associate Pengerang Biorefinery SDN BHD [Member] This member stands for the information pertaining to "Pengerang Biorefinery SDN BHD". Pengerang Biorefinery SDN BHD Mangistau Power B.V and Mangistau Renewables B.V. [Member] This member stands for the information pertaining to "Mangistau Power B.V and Mangistau Renewables B.V.". Mangistau Power B.V and Mangistau Renewables B.V. Renewable activity in United States [Member] This member stands for the information pertaining to "Renewable activity in United States". Renewable activity in United States Offshore wind projects in United Kingdom [Member] This member stands for the information pertaining to "Offshore wind projects in United Kingdom". Offshore wind projects in United Kingdom Biorefinery plants in South Korea and Malaysia [Member] This member stands for the information pertaining to "Biorefinery plants in South Korea and Malaysia". Biorefinery plants in South Korea and Malaysia Two Thousand and Twenty Three Sol IX Llc and 2022 Sol VII Llc [Member] This member stands for the information pertaining to "2023 Sol IX Llc and 2022 Sol VII Llc". 2023 Sol IX Llc and 2022 Sol VII Llc Classes of property, plant and equipment [domain] Oil and gas assets [member] Decrease through classified as held for sale, property, plant and equipment Reclassification to assets held for sale NETHERLANDS Netherlands Purchase of interests in investments accounted for using equity method Acquisition of non-controlling interest in associated companies Supplementary Healthcare Fund for Managers of Eni Group Companies (FISDE) Eni Enrico Mattei Foundation [Member] Eni Enrico Mattei Foundation This member stands for the information pertaining to "Eni Enrico Mattei Foundation". Tax effect of use of tax-suspended reserves of net income Tax effect of the use of tax-suspended reserves of net income The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to use of tax-suspended reserves of net income. Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax Effects recognized in other comprehensive income Provisions for abandonment and social projects [Member] Provisions for abandonment and social projects This member stands for the information pertaining to "Provisions for abandonment and social projects". Provisions for decommissioning of depleted oil and gas assets [Member] Provisions for decommissioning of depleted oil and gas assets This member stands for the information pertaining to "Provisions for decommissioning of depleted oil and gas assets". Long-Term Monetary Incentive Plans [Member] Long-Term Monetary Incentive Plans This member stands for the information pertaining to "Long-Term Monetary Incentive Plans". Employee Stock Ownership Plan [Member] Employee Stock Ownership Plan This member stands for the information pertaining to "Employee Stock Ownership Plan". Percentage of shares that will be granted depending on profitability as benchmarked against the peer groups' performance Percentage of shares that will be granted depending on profitability as benchmarked against the peer groups' performance The percentage of shares that will be granted at the end of the vesting period, depending on profitability objective as benchmarked against the peer groups' performance. Percentage of shares that will be granted depending on share appreciation as benchmarked against the peer groups' performance Percentage of shares that will be granted depending on share appreciation as benchmarked against the peer groups' performance The percentage of shares that will be granted at the end of the vesting period, depending on share appreciation objective as benchmarked against the peer groups' performance. Percentage of shares that will be granted depending on environmental sustainability and emission reduction objective Percentage of shares that will be granted depending on environmental sustainability and emission reduction objective The percentage of shares that will be granted at the end of the vesting period, depending on environmental sustainability and emission reduction objective. Number of employees awarded of One-time stock-based compensation for no consideration Number of employees awarded of One-time stock-based compensation for no consideration The number of employees awarded of one-time stock-based compensation for no consideration during the reporting period. Share based payment arrangement, Period for cost allocation on pro-rata basis Period for cost allocation on pro-rata basis The period for cost allocation on pro-rata basis in share based payment arrangement. Reimbursement of past and expected costs incurred for environmental sustainability Reimbursement of previous and future costs for environmental sustainability The amount for the reimbursement of previous and future costs for environmental sustainability. Eni Elgin/Franklin Ltd, Eni UKCS Ltd, Eni Energy Exploration and Production UK Ltd and Eni Energy Exploration and Production UKCS Ltd [Member] Eni Elgin/Franklin Ltd, Eni UKCS Ltd, Eni Energy E&P UK Ltd and Eni Energy E&P UKCS Ltd This member stands for the information pertaining to "Eni Elgin/Franklin Ltd, Eni UKCS Ltd, Eni Energy Exploration and Production UK Ltd and Eni Energy Exploration and Production UKCS Ltd". Agip Karachaganak BV [Member] This member stands for the information pertaining to "Agip Karachaganak BV". Agip Karachaganak BV Agip Caspian Sea BV [Member] This member stands for the information pertaining to "Agip Caspian Sea BV". Agip Caspian Sea BV KAZAKHSTAN The Republic of Kazakhstan (“Rok”) Civil and administrative proceedings in matters of environment, health and safety [Member] This member stands for the information pertaining to "Civil and administrative proceedings in the matters of environment, health and safety". Civil and administrative proceedings in the matters of environment, health and safety Commercial papers issued Offsetting of other financial assets and liabilities The offsetting amount of other financial assets and liabilities as of the reporting date. Offsetting of other financial assets and liabilities Euro Commercial Paper program Number of Mirror Transactions The number of mirror transactions in business divestments. Number of mirror transactions Payables Recognized InConnection WithPurchase Of Plants And Equipment From Suppliers KKR and Co. L.P. [Member] This member stands for the information pertaining to "KKR & Co. L.P.". KKR private equity fund Amount of purchased items under supplier financing agreements outstanding The amount of payables recognized in connection with the purchase of plants and equipment from suppliers under supplier financing agreements as of the reporting date. Proceeds from other contributions, classified as financing activities Other contributions The cash inflow from other contributions, classified as financing activities. Current inventory, Semi-finished, finished goods and work in progress Semi-finished, finished goods and goods A classification of current inventory representing the amount of semi-finished, finished goods and work in progress in the ordinary course of business. Expense from remeasurement of lease liabilities Expense from remeasurement of lease liabilities The amount of expense arising from remeasurement of lease liabilities. Write-off of right-of-use leased assets recognised in profit or loss Write-off of RoU leased assets The amount of write-off of right-of-use leased assets recognised in profit or loss. Ten percent haircut of Eni's prices assumptions [Member] 10% haircut of Eni's prices assumptions This member stands for the information pertaining to "10% haircut of Eni's prices assumptions". Alaska and Congo [Member] Alaska and Congo This member stands for the information pertaining to "Alaska and Congo". Book value of biorefinery assets Book value of biorefineries The amount representing book value of assets of biorefineries related to Oil and gas assets. Disclosure of detailed information about supplier finance arrangements [Table text block] Schedule of supplier finance arrangements The tabular disclosure of detailed information about supplier finance arrangements. Current portion of long-term debt [Member] Current portion of long-term debt This member stands for the information pertaining to "Current portion of long-term debt". Supplier finance arrangements borrowing Carrying amount at beginning The amount of outstanding funds that the entity is obligated to repay under supplier finance arrangements. Increase (decrease) through financing cash flows, Supplier finance arrangements borrowing Cash flows The increase (decrease) in supplier finance arrangements borrowing arising from financing activities resulting from financing cash flows. Increase (decrease) through effect of changes in foreign exchange rates, Supplier finance arrangements borrowing Currency translation differences The increase (decrease) in supplier finance arrangements borrowing arising from financing activities resulting from the effect of changes in foreign exchange rates. Increase (decrease) through other non-monetary changes, Supplier finance arrangements borrowing Other non-monetary changes The increase (decrease) in supplier finance arrangements borrowing arising from financing activities resulting from other non-monetary changes. Carrying amount at end Amount by which unit's recoverable amount exceeds its carrying amount if zero point seven percent point increase in weighted average cost of capital Amount by which unit's recoverable amount exceeds its carrying amount if 0.7 percent point increase in weighted average cost of capital (WACC) The amount by which a cash-generating unit's (group of units') recoverable amount exceeds its carrying amount if 0.70% point increase in the weighted average cost of capital ("WACC"). Supplier finance arrangements [Member] Supplier finance arrangements (SFAs) This member stands for the information pertaining to "Supplier finance arrangements". Payment terms for financial liabilities falling within scope of supplier finance arrangements Payment terms for financial liabilities falling within the scope of the supplier finance arrangements The period of payment terms for financial liabilities falling within the scope of the supplier finance arrangements. Payment terms for financial liabilities not falling within scope of other than supplier finance arrangements Payment terms for financial liabilities not falling within the scope of other than supplier finance arrangements The period of payment terms for financial liabilities not falling within the scope of other than supplier finance arrangements. Percentage of debt paid by banks to suppliers Percentage of debt paid by banks to suppliers The percentage of debt paid by banks to suppliers under supplier finance arrangements. Other price risk [member] Other cash flow derivatives Other contract Hedge fund investments [member] Investments Financial liabilities [Member] Financial liabilities This member stands for the information pertaining to "Financial liabilities". Provisions for decommissioning and dismantling costs [Member] Provisions for decommissioning and dismantling costs This member stands for the information pertaining to "Provisions for decommissioning and dismantling costs". Tax effect of reserve distribution - tax effect on reserve distribution The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to reserve distribution. Trade and other liabilities TOTAL NET ACQUISITIONS Cash flows from (used in) decrease (increase) in restricted cash and cash equivalents Restricted cash released Major changes in Restricted cash and cash equivalents [member] This member stands for the information pertaining to "Major changes in Restricted cash and cash equivalents". Major changes in Restricted cash and cash equivalents [member] Industrial patents and intellectual property rights Liquefaction capacity target per annum Nominal mass used to calculate liquefaction capacity target per annum. Liquefaction capacity target per annum Liquefaction capacity current per annum Nominal mass used to calculate current liquefaction capacity per annum. Liquefaction capacity current per annum Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Management Positions or Committees Responsible [Flag] Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted [Flag] Neptune Energy Group Atenoil Administrative fees paid Corporate and Other activities Reportable segments [member] Tax effect of release of provision set aside to cover uncertainties in application of tax rules Tax effect of the release of a provision set aside to cover uncertainties in the application of tax rules The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to the release of a provision set aside to cover uncertainties in the application of tax rules. Increase (decrease) in net defined benefit liability (asset) resulting from administration costs not reflected in return on plan assets Administrative fees paid Nominal value of Brent crude oil price Nominal value of price of the Brent crude oil The nominal value of the Brent crude oil price. Nominal value of natural gas price Nominal value of natural gas price (in Dollars per Millions of BTU) The nominal value of the natural gas price. Adjustments of intragroup profits Total reportable segments Property, plant and equipment, Borrowing costs capitalised The amount of interest and other costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the property, plant and equipment in the course of its construction, and which form part of the cost of that asset. Property, plant and equipment, Capitalized finance expenses Classes of intangible assets other than goodwill [domain] Reserves within equity [domain] Impairment loss recognised in profit or loss, trade receivables New provisions Disclosure Of Analysis Of Credit Exposures Using External Credit Grading System [Table Text Block] The tabular disclosure of an analysis of credit exposures using an external credit grading system. Schedule of financial assets at fair value through profit and loss by issuing entity and credit rating Disclosure Of Internal Credit Grades [Table Text Block] The tabular disclosure of internal credit grades. Schedule of credit risk exposure and expected losses relating to trade and other receivables based on internal ratings EDP Renewables North America LLC [member] This member stands for the information pertaining to "EDP Renewables North America LLC". EDP Renewables North America LLC Participating interest of the investment Alaska Disposals Depreciation capitalized, intangible assets other than goodwill The amount of depreciation capitalized of intangible assets other than goodwill. Depreciation capitalized Amount by which unit's recoverable amount exceeds its carrying amount if one point seven percent point increase in weighted average cost of capital The amount by which a cash-generating unit's (group of units') recoverable amount exceeds its carrying amount if 1.70% point increase in the weighted average cost of capital ("WACC"). Amount by which unit's recoverable amount exceeds its carrying amount if 1.7 percent point increase in weighted average cost of capital (WACC) Long-term assumption for electricity wholesale price This element represents about long term assumption for benchmark electricity wholesale price. Long-term assumption for electricity wholesale price Expected percentage of reduction in perpetuity growth rate The expected percentage of reduction in perpetuity growth rate. Expected percentage of reduction in perpetuity growth rate (as a percent) Major debt issuance [member] This member stands for the information pertaining to "Major debt issuance". Major debt issuance Hybrid bonds This member stands for the information pertaining to "Hybrid bonds". Hybrid bonds [member] Vitol S.A. This member stands for the information pertaining to "Vitol S.A.". Vitol S.A. [member] Congo FLNG project This member stands for the information pertaining to "Floating Liquefied Natural Gas project in Congo". Floating Liquefied Natural Gas project in Congo [member] Baleine oil project offshore Cote d’Ivoire This member stands for the information pertaining to "Baleine Oil and Gas project in Ivory Coast". Baleine Oil and Gas project in Ivory Coast [member] UNITED KINGDOM LIBYA UK Libya Utilizations of the provision Financing receivables Amount by which unit's recoverable amount exceeds its carrying amount CGUs Percentage of country risk premium The percentage of country risk premium adopted by the reporting entity. Percentage of Country Risk Premium Percentage of hybrid bonds repurchased (as a percent) The percentage of hybrid bonds repurchased by the reporting entity. Percentage of Hybrid Bonds Repurchased Renewables and Retail Repurchase amount of borrowings The repurchase amount of borrowings of the reporting entity. Repurchase amount of borrowings Employee Benefits Expense (Income) Payroll and related costs The amount of expense (income) of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment. Non-current financing receivables The amount of non-current financing receivables. Non-current financing receivables Description of pre-tax discount rate applied to cash flow projections The pre-tax discount rate applied to cash flow projections for a cash-generating unit (group of units). Risk-adjusted pre-tax WACC Fair Value Hedge Derivative Contracts Of Hedge Fixed Rate Bonds Debt The amount of fair value hedge derivative contracts of hedge fixed rate bonds debt. Fair value hedge derivative contracts of hedge fixed rate bonds debt Eni Trade And Biofuels Spa [Member] Eni Trade and Biofuels SpA This member stands for the information pertaining to "Eni Trade & Biofuels SpA". Defined Benefit Plans [Member] Defined Benefit Plans This member stands for the information pertaining to "Defined Benefit Plans". Provisions for Revisions of Cost Estimates [Member] Provisions for revisions of cost estimates This member stands for a provision relating to revisions of cost estimates'. Suspended wells relating to fields including wells drilled over last twelve months [member] Suspended wells relating to fields including wells drilled over the last twelve months This member stands for the information pertaining to "Suspended wells relating to fields including wells drilled over the last twelve months". Suspended wells relating to fields for which delineation campaign is in progress [member] Suspended wells relating to fields for which the delineation campaign is in progress This member stands for the information pertaining to "Suspended wells relating to fields for which the delineation campaign is in progress". Number of leases Number of leases The number of leases. Accumulated fair value hedge adjustment on hedged item included in carrying amount, assets Accumulated fair value hedge adjustment on hedged item included in carrying amount, liabilities Cumulative changes of the underlying item, assets Cumulative changes of the underlying item, liabilities Nominal amount of underlying hedged item The nominal amount of the underlying hedged item. Nominal amount of the underlying item Change of the underlying item Criminal proceedings in the matters of environment, health and safety, explosion occurred at fuel storage site in Calenzano This member stands for the information pertaining to "Criminal proceedings in the matters of environment, health and safety, explosion occurred at fuel storage site in Calenzano". Criminal proceedings in matters of environment, health and safety, explosion occurred at fuel storage site in Calenzano [member] Other cash flow derivatives Revenue of acquiree since acquisition date Revenue of acquiree since acquisition date Ordinary sustainability-linked bonds [member] This member stands for the information pertaining to "Ordinary sustainability-linked bonds". Ordinary sustainability-linked bonds Comprehensive Income Loss of Acquiree Since Acquisition Date The comprehensive income (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. Other bonds Eight This member stands for the information pertaining to "Other bonds Eight". Other Bonds Eight [Member] Adjustments to reconcile profit (loss) to net cash provided by operating activities Adjustments to reconcile profit (loss) [abstract] Adjustments for write-off of tangible and intangible assets and right-of-use assets Write-off of tangible and intangible assets Adjustments for write off of tangible and intangible assets and right-of-use assets to reconcile profit (loss) to net cash flow from (used in) operating activities. Increase (decrease) in working capital Cash flow from changes in working capital The amount of write off of tangible and intangible assets. Write off Of Tangible And Intangible Assets Write-off of tangible and intangible assets Write-off of tangible and intangible assets Operating profit OPERATING PROFIT (LOSS) Operating profit (loss) Profit (loss) from operating activities Net expenses on other financial assets valued at fair value with effects on profit and loss The gains (losses) on other financial assets at fair value through profit or loss. Gains (losses) on other financial assets at fair value through profit or loss Weighted average number of shares used for basic earnings per share Weighted average number of ordinary shares outstanding Weighted average number of shares used for diluted earnings per share Adjusted weighted average number of ordinary shares outstanding Eni's profit for basic earnings per share Profit (loss), attributable to ordinary equity holders of parent entity Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating diluted earnings per share Eni's profit for diluted earnings per share Basic Basic earnings per share Basic earnings (loss) per share Diluted Diluted earnings per share Diluted earnings (loss) per share Enilive Group [member] This member stands for the information pertaining to "Enilive Group". Enilive Group Sol XVI Llc, 2024 [member] This member stands for the information pertaining to "Sol XVI Llc, 2024". 2024 Sol XVI Llc Sol XV Llc, 2024 [member] This member stands for the information pertaining to "Sol XV Llc, 2024". 2024 Sol XV Llc This member stands for the other financial assets held for trading. Other securities Other financial assets held for trading [Member] Energy Italia [Member] ENE Italia This member stands for the information pertaining to "ENE Italia". Plenitude Zephyr France SAS [Member] Plen. Zephyr France SAS This member stands for the information pertaining to "Plen. Zephyr France SAS". Plenitude Production France SAS [Member] Plen. Prod. France SAS This member stands for the information pertaining to "Plen. Prod. France SAS". Eni Plenitude Finance SA [Member] Eni Plenitude France SA This member stands for the information pertaining to "Eni Plenitude France SA". Other Joint Ventures [Member] Other joint ventures This member stands for the information pertaining to "Other joint ventures". Versalis Oilfield Solutions Srl [Member] Versalis Oilfield S. Srl This member stands for the information pertaining to "Versalis Oilfield Solutions Srl". Eni Plenitude Renewable Australia Pty Ltd [Member] Eni Plen Ren Aus. Pty Ltd This member stands for the information pertaining to "Eni Plen Ren Aus. Pty Ltd". Eni Plenitude Renewables Holding BV [Member] Eni Plen. Ren. Hold. BV This member stands for the information pertaining to "Eni Plen. Ren. Hold. BV". Subsidiaries Hundred Seventy Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Six". Subsidiaries Hundred Seventy Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Seven". Subsidiaries Hundred Seventy Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Eight". Subsidiaries Hundred Seventy Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Seventy Nine". Subsidiaries Hundred Eighty [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty". Subsidiaries Hundred Eighty One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty One". Subsidiaries Hundred Eighty Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Two". Subsidiaries Hundred Eighty Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Three". Subsidiaries Hundred Eighty Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Four". Subsidiaries Hundred Eighty Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Five". Subsidiaries Hundred Eighty Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Six". Subsidiaries Hundred Eighty Seven [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Seven". Subsidiaries Hundred Eighty Eight [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Eight". Subsidiaries Hundred Eighty Nine [Member] This member stands for the information pertaining to "Subsidiaries Hundred Eighty Nine". Subsidiaries Hundred Ninety [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety". Subsidiaries Hundred Ninety One [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety One". Subsidiaries Hundred Ninety Two [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety Two". Subsidiaries Hundred Ninety Three [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety Three". Subsidiaries Hundred Ninety Four [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety Four". Subsidiaries Hundred Ninety Five [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety Five". Subsidiaries Hundred Ninety Six [Member] This member stands for the information pertaining to "Subsidiaries Hundred Ninety Six". Enilive SpA [Member] Enilive SpA This member stands for the information pertaining to "Enilive SpA". Enilive Eni Plenitude Spa SB [Member] Eni Plenitude SpA SB This member stands for the information pertaining to "Eni Plenitude SpA SB". Bateria II Llc 2025 [member] 2025 Bateria II Llc This member stands for the information pertaining to "Bateria II Llc, 2025". Other Divestments [member] Other divestments This member stands for the information pertaining to "Other divestments". Neoen SA [member] Neoen SA This member stands for the information pertaining to "Neoen SA". Global Infrastructure Partners [member] Global Infrastructure Partners (GIP) This member stands for the information pertaining to "Global Infrastructure Partners (GIP)". Liverpool Bay CCS Ltd [member] Liverpool Bay CCS Ltd This member stands for the information pertaining to "Liverpool Bay CCS Ltd". Eni Netherlands CCUS BV [member] Eni Netherlands CCUS BV This member stands for the information pertaining to "Eni Netherlands CCUS BV". Bacton CCS Ltd [member] Bacton CCS Ltd This member stands for the information pertaining to "Bacton CCS Ltd". Eni Tellus CCS Ltd [member] Eni Tellus CCS Ltd This member stands for the information pertaining to "Eni Tellus CCS Ltd". Number Of Operating Assets Number of operating assets The number of operating assets during the reporting period. Assets derecognised as of disposal date The amount of assets derecognised as of disposal date. TOTAL ASSETS TOTAL ASSETS Current and non-current assets Market value of joint venture Fair value of investments in joint ventures for which there are quoted market prices Market value Fair value of joint venture Depreciation Amortisation, intangible assets other than goodwill 2026 within 1 year Later than three years and not later than four years 2029 2031 and thereafter beyond 5 years 2027 Later than one year and not later than two years 2028 Later than two years and not later than three years Within 5 years between 2 and 5 years 2027 - 2030 Proceeds from contributions of non-controlling interests Proceeds from non‐controlling interest Proportion of ownership interest in subsidiary (as a percent) Proportion of ownership interest in subsidiary Ownership interest in subsidiaries % Ownership In Salah Gas Ltd [member] This member stands for the information pertaining to "In Salah Gas Ltd". In Salah Gas Ltd Number of share-based plans The number of share-based plans during the reporting period. Number of share-based plans Revenues from joint operations acquired The amount of revenues arising from joint operations acquired. Revenues from joint operations acquired TUNISIA Tunisia AUSTRALIA Australia Decrease through termination of guarantees issued to bank Decrease through termination of guarantees issued to bank The decrease in guarantees through termination of guarantees issued to bank during the reporting period. Increase through issuance of guarantees in connection with sale of joint control operations Increase through issuance of guarantees in connection with the sale of joint control operations The increase in guarantees through issuance of guarantees in connection with the sale of joint control operations during the reporting period. Decrease in capital commitments through exchange rate differences and termination of parent company guarantees issued to bank Decrease through exchange rate differences and termination of parent company guarantees issued to bank The decrease in capital commitments through exchange rate differences and termination of parent company guarantees issued to bank during the reporting period. Administrative fine imposed for alleged abuses of dominant position in relevant markets Administrative fine imposed for alleged abuses of dominant position in the relevant markets The amount of administrative fine imposed for alleged abuses of dominant position in the relevant markets by the statutory authority. Administrative fine imposed jointly and severally Administrative fine imposed jointly and severally The amount of administrative fine imposed jointly and severally by the statutory authority. CCUS activities in United Kingdom and Netherlands [member] CCUS activities in the United Kingdom and the Netherlands This member stands for the information pertaining to "CCUS activities in the United Kingdom and the Netherlands". Eni RAK BV [member] Eni RAK BV This member stands for the information pertaining to "Eni RAK BV". Ares Capital private equity fund Ares Capital private equity fund This member stands for the information pertaining to "Ares Capital private equity fund". This member stands for the information pertaining to "Tranche, One". September 2025 Tranche, One [member] This member stands for the information pertaining to "Tranche, Two". November 2025 Tranche, Two [member] This member stands for the information pertaining to "Tranche, Three". March 2026 Tranche, Three [member] This member stands for the information pertaining to "Tranche, Four". May 2026 Tranche, Four [member] Title and Position [Axis] Title and Position [Domain] Managers [member] Managers This member stands for the information pertaining to the persons with designation of "Managers". Subsequent spread to additional spread on variable rate (as a percent) Subsequent spread to additional spread on variable rate (as a percent) The subsequent spread after the additional adjustment to the basis (reference rate) points used for calculation of the interest rate on perpetual subordinated hybrid bonds issued by the company. Period for annual coupon rate reset after the initial reset date of bonds Period for annual coupon rate reset after the initial reset date of bonds The period for annual coupon rate reset after the initial reset date of perpetual subordinated bonds. The amount recognised as of the acquisition date for assets acquired in a business combination. Total Assets Recognised As Of Acquisition Date TOTAL ASSETS Assets acquired The amount recognised as of the acquisition date for liabilities acquired in a business combination. Total Liabilities Recognised As Of Acquisition Date TOTAL LIABILITIES Liabilities acquired Indonesia, United Arab Emirates, Congo and Ivory Coast [member] Indonesia, United Arab Emirates, Congo and Ivory Coast This member stands for the information pertaining to "Indonesia, United Arab Emirates, Congo and Ivory Coast". Discount on bond issue and accrued expense Discount on bond issue and accrued expenses The amount of discount on bond issue and accrued expenses. Business Combination, Number of Businesses Acquired Number of Businesses Acquired The number of businesses acquired in business combination. BF International Best Fields Best Food Ltd [member] BF International Best Fields Best Food Ltd This member stands for the information pertaining to "BF International Best Fields Best Food Ltd". Scenario Forecast Period, One [Member] 2026 This member stands for the information pertaining to "Scenario Forecast Period, One". Projected percentage of linear decline per year Projected percentage of linear decline per year The projected percentage of linear decline per year. Projected percentage point increases in discount rate of future cash flows Projected percentage point increases in the discount rate of future cash flows The projected percentage point increases in the discount rate of future cash flows for sensitivity analysis. Discount rate used for valuation of asset retirement obligation Discount rate used for the valuation of asset retirement obligation The discount rate used for the valuation of asset retirement obligation. Estimated currency inflation rate Estimated currency inflation rate The expected rate of inflation of currecy values. Projected percentage decreases in hydrocarbon prices, over duration of cash flows projections Projected percentage decreases in the hydrocarbon prices, over the duration of the cash flows projections The projected percentage decreases in the hydrocarbon prices, over the duration of the cash flows projections for sensitivity analysis. 2030 Later than four years and not later than five years Long-term borrowings [member] Long-term SFAs Short-term debt Short term debt Current SFAs and current portion of long-term SFAs Decrease through reclassification to assets held for sale Decrease Through Classified As Held For Sale, Liabilities Arising From Financing Activities The decrease in liabilities arising from financing activities through classification as held for sale or inclusion in a disposal group classified as held for sale. Ghana, Mexico and Ivory Coast Ghana, Mexico and Ivory Coast [member] This member stands for the information pertaining to "Ghana, Mexico and Ivory Coast". This member stands for the information pertaining to "fields including commercial discoveries in progress". Fields including commercial discoveries that are progressing to a FID Congo, Ivory Coast, Italy, Turkmenistan, United Arab Emirates and USA This member stands for the information pertaining to "Congo, Ivory Coast, Italy, Turkmenistan, United Arab Emirates and USA". Congo, Ivory Coast, Italy, Turkmenistan, United Arab Emirates and USA [Member] Indonesia and United Arab Emirates This member stands for the information pertaining to "Indonesia and United Arab Emirates". Indonesia and United Arab Emirates [Member] Congo, Ivory Coast, Egypt, Kazakhstan, Indonesia, Italy, Algeria and Mexico This member stands for the information pertaining to "Congo, Ivory Coast, Egypt, Kazakhstan, Indonesia, Italy, Algeria and Mexico". Congo, Ivory Coast, Egypt, Kazakhstan, Indonesia, Italy, Algeria and Mexico [Member] Oman, Algeria and Nigeria This member stands for the information pertaining to "Oman, Algeria and Nigeria". Oman, Algeria and Nigeria [Member] Congo, Nigeria and United Arab Emirates This member stands for the information pertaining to "Congo, Nigeria and United Arab Emirates". Congo, Nigeria and United Arab Emirates [Member] CÔTE D'IVOIRE Ivory Coast Expected period of production of additional volumes of reserves The expected period of production of additional volumes of reserves which are under progress. Expected period of production of additional volumes of reserves Decrease through loss of control of subsidiary, property, plant and equipment Decrease through loss of control of subsidiary, property, plant and equipment Current finished goods Finished products and goods Impairments of tangible and intangible assets and right-of-use assets Net (impairments) reversals of trade and other receivables Disclosure of impairment of assets [text block] Impairments of tangible and intangible assets and right-of-use assets Sol XV Llc 2024 and 2024 Sol XVI Llc [member] This member stands for the information pertaining to "2024 Sol XV Llc and 2024 Sol XVI Llc". 2024 Sol XV Llc and 2024 Sol XVI Llc Impairments of tangible and intangible assets and right-of-use assets Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items] Interest rate risk Interest rate Currency Currency risk Exchange rate Maximum High Minimum Low Commercial exposure This member stands for the information pertaining to "Commercial exposure risk". Commercial exposures - Management Portfolio Strategic liquidity risk This member stands for the information pertaining to "Strategic liquidity risk". Strategic liquidity This member stands for perpetual subordinated bond, five. Perpetual subordinated bond, five Schedule Of Main Price Assumptions For Assessing Recoverability Of Oil Assets, Stated In Real Terms For Comparability With International Energy Agency Scenario [Table Text Block] The tabular disclosure for main price assumptions for assessing the recoverability of oil assets, stated in real terms for comparability with the International Energy Agency ("IEA") scenario. Schedule of main price assumptions for assessing the recoverability of oil assets, stated in real terms for comparability with the IEA scenario Schedule Of Main Price Assumptions For Assessing Recoverability Of Gas Assets, Stated In Real Terms For Comparability With International Energy Agency Scenario [Table Text Block] The tabular disclosure for main price assumptions for assessing the recoverability of gas assets, stated in real terms for comparability with the International Energy Agency ("IEA") scenario. Schedule of main price assumptions for assessing the recoverability of gas assets, stated in real terms for comparability with the IEA scenario Tabular disclosure of sensititivity analysis for assumption of the projections of hydrocarbon prices and CO2 costs of the decarbonization scenario. Schedule of results of the sensitivity tests expressed in terms of cumulated headroom of the oil&gas CGUs over their corresponding book values under each scenario and potential pre-tax income statement impacts Schedule of sensititivity analysis for assumption of projections of hydrocarbon prices and CO2 costs of decarbonization scenario [Table Text Block] Scenario Forecast Period, Two [Member] 2027 This member stands for the information pertaining to "Scenario Forecast Period, Two". This member stands for the information pertaining to "Scenario Forecast Period, Three". 2028-2029 Scenario Forecast Period, Three [Member] This member stands for the information pertaining to "Scenario Forecast Period, Four". 2028-2030 Scenario Forecast Period, Four [Member] This member stands for the information pertaining to "Scenario Forecast Period, Five". Beyond 2030 Scenario Forecast Period, Five [Member] 2030-2050 Scenario Forecast Period, Six [member] This member stands for the information pertaining to "Scenario Forecast Period, Six". 2050 Scenario Forecast Period, Seven [member] 2030 This member stands for the information pertaining to "Scenario Forecast Period, Seven". Scenario Forecast Period, Eight [member] Beyond 2030 This member stands for the information pertaining to "Scenario Forecast Period, Eight". Scenario Forecast Period, Nine [member] Scenario Forecast Period, Nine [member] 2040 Scenario Forecast Period, Ten [member] This member stands for the information pertaining to "Scenario Forecast Period, Ten". 2026-2050 Increase (decrease) in receivables from joint ventures in exploration and production activities Increase (decrease) in receivables from joint ventures in exploration and production activities The amount of increase (decrease) in receivables from joint ventures in exploration and production activities during the reporting period. Recoverable amount of asset or cash-generating unit Recoverable value which is estimated by discounting the cash flow at the cost of capital Gain Loss On Financial Assets At Fair Value Through Profit Or Loss Classified As Held For Trading The amount of gains (losses) on financial assets at fair value through profit or loss classified as held for trading. Net finance income (expense) on financial assets held for trading Net profit (loss) for the year This member stands for the information pertaining to "Net profit (loss) attributable to owners of parent for the year". Profit (loss) for the year This member stands for the information pertaining to "VME Oilfield Chemicals Llc". VME Oilfield Chemicals Llc [Member] VME Oilfield Chemicals Llc Increase (decrease) through non-monetary transactions, Supplier finance arrangements borrowing Non-monetary increases The increase (decrease) in supplier finance arrangements borrowing arising from financing activities resulting from the non-monetary transactions. Tax effect of gains (loss) from sale of business or business combination - effect of gains from sale / business combination The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to gains (loss) from sale of business or acquisition of business. The percentage of ownership interest divested. Percentage of Ownership Interest Divested Percentage of ownership interest divested Percentage of ownership interest divested (as a percent) Assumption period of decommissioning and asset retirement obligations for provision of energy transition risk Assumption period of decommissioning and asset retirement obligations for provision of energy transition risk The assumption period of decommissioning and asset retirement obligations for provision of energy transition risk. Estimated provision of energy transition risk Estimated provision of energy transition risk The estimated amount of provision for energy transition risk. Provisions, contingent liabilities and contingent assets Description of accounting policy for provisions, contingent liabilities and contingent assets [Policy Text Block] The description of the entity's material accounting policy information for provisions, contingent liabilities and contingent assets. Provisions and contingent liabilities Costs Description of accounting policy for expenses [text block] Costs associated with emission quotas Assets held for sale and discontinued operations Description of accounting policy for non-current assets or disposal groups classified as held for sale and discontinued operations [text block] Assets held for sale Long-term share-based incentive plan Longterm sharebased incentive plan Long-term share-based incentive plan Eni Netherlands Holdings BV [Member] This member stands for the information pertaining to "Eni Netherlands Holdings BV". Eni Netherlands Hold. BV Eni CCUS Holding Ltd [Member] Eni CCUS H. Ltd This member stands for the information pertaining to "Eni CCUS Holding Ltd". Eni CCUS Holding Effect of issuance of convertible bonds ProceedsFromIssueOfBondsNotesAndDebentures Depreciation, net impairments and write-off. Depreciation and Impairment Loss of RoU Leased Assets [abstract] Depreciation, net impairments and write-offs Average Brent breakeven price Average Brent breakeven price (in dollors per barrel) The average brent breakeven price for the portfolio of oil&gas projects. Proceeds from issuance (redemption) of perpetual subordinated bonds The cash inflow (outflow) resulting from the issuance (redemption) of perpetual subordinated bonds. Net issuance (repayment) of perpetual subordinated bonds Increase (decrease) in financial guarantees Increase (decrease) in financial guarantees The amount of increase (decrease) in financial guarantees during the reporting period. Increase (Decrease) in Guarantees Increase (decrease) in guarantees The increase (decrease) in guarantees during the reporting period. Increase (decrease) in guarantees Employee benefits 1 [Member] This member stands for the information pertaining to "Employee benefits". Employee benefits [Member] Increase (Decrease) Through Repurchase of Perpetual Subordinated Bonds The increase (decrease) in equity resulting from repurchase of perpetual subordinated bonds. Repurchase of perpetual subordinated bonds The increase (decrease) in equity resulting from net issue (reimbursement) of perpetual subordinated bonds. Issuing of perpetual subordinated bonds Increase (Decrease) Through Net Issue (Reimbursement) Of Perpetual Subordinated Bonds, Equity Versalis Cgu [Member] Versalis CGU This member stands for the information pertaining to "Versalis CGU". Net (impairments) reversals Write-downs (reversals of write-downs) of property, plant and equipment Net (impairments) reversals Written down of property, plant and equipment The amount of increase (decrease) in reserves within equity resulting from the changes in scope of consolidation. Increase (Decrease) through Change in Scope of Consolidation Reserves within Equity Changes in scope of consolidation Increase (decrease) through change in scope of consolidation and non-controlling interest, Reserves within equity Changes in scope of consolidation and non-controlling interest The amount of increase (decrease) in reserves within equity resulting from the changes in scope of consolidation and non-controlling interest. Current payables to factoring companies in relation to derecognition of tax credits The amount of current payables to factoring companies in relation to the derecognition of tax credits of the reporting entity. Payables to factoring companies in relation to the derecognition of Eni's tax credits Current trade payables secured by credit letters The amount of current trade payables secured by credit letters of the reporting entity. Trade payables secured by credit letters Proceeds from contributions (payments for) reimbursements to non-controlling interests, classified as financing activities Capital contribution (reimbursement) by non-controlling interests The cash inflow (outflow) from contributions (for reimbursements) to non-controlling interests, classified as financing activities. Asset Impairment losses This member stands for the information pertaining to "Impairment losses". Goodwill, Group capital gains and perpetual subordinated bonds, Investments accounted for using equity method Goodwill, Group capital gains and perpetual subordinated bonds The amount of goodwill, group capital gains and perpetual subordinated bonds from investments accounted for using the equity method. Revenues from performance obligations satisfied or partially satisfied in previous periods Revenues associated with performance obligations totally or partially satisfied in previous years The amount of revenues from performance obligations satisfied (or partially satisfied) in previous periods. Forecast 2026-2030 Reversal of impairment loss recognised in profit or loss, trade receivables Reversals Other Current Financial Assets Derecognised As Of Disposal Date Other current financial assets The amount of other current financial assets derecognised as of disposal date. Utilizations Deductions Decrease through derecognition, financial assets