XML 213 R102.htm IDEA: XBRL DOCUMENT
v3.21.1

Property, plant and equipment - Changes related to suspended wells (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Property, plant and equipment |  |  |
Property, plant and equipment - beginning of the year | € 62,192 | € 60,302 |
Disposals |  | (113) |
Currency translation differences | (4,140) | 1,044 |
Property, plant and equipment - end of the year | 53,943 | 62,192 | € 60,302
Suspended exploration wells pending final determination |  |  |
Property, plant and equipment |  |  |
Property, plant and equipment - beginning of the year | 1,246 | 1,101 | 1,263
Increases for which is ongoing the determination of proved reserves | 408 | 368 | 235
Amounts previously capitalized and expensed in the year | (226) | (183) | (61)
Reclassification to successful exploratory wells following the estimation of proved reserves | (48) | (46) | (297)
Disposals |  | (15) | (6)
Changes in the scope of consolidation |  |  | (58)
Reclassification to assets held for sale |  |  | (24)
Currency translation differences | (112) | 21 | 49
Property, plant and equipment - end of the year | € 1,268 | € 1,246 | € 1,101

X
- Definition Additions to costs for exploratory well that were added during the reporting period pending the determination of proved reserves. + References No definition available. + Details
Name: | e_CostsForExploratoryWellsSuspendedAdditionsPendingDeterminationOfProvedReserves
Namespace Prefix: | e_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of costs for exploratory well for which proved reserves were not found at the exploratory well. + References No definition available. + Details
Name: | e_CostsForExploratoryWellsSuspendedChargedToExpense
Namespace Prefix: | e_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (decrease) through changes in scope of consolidation, property, plant and equipment + References No definition available. + Details
Name: | e_IncreaseDecreaseThroughChangesInScopeOfConsolidationPropertyPlantAndEquipment
Namespace Prefix: | e_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reclassified costs to productive wells on determination of proved reserves. + References No definition available. + Details
Name: | e_ReclassificationToProductiveWellsOnDeterminationOfProvedReserves
Namespace Prefix: | e_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The decrease in property, plant and equipment through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisposalsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=e_SuspendedExplorationWellsPendingFinalDeterminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |