XML 183 R112.htm IDEA: XBRL DOCUMENT v3.19.1

Property, plant and equipment (Details 2) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Property Plant And Equipment Explanatory [Abstract]
Costs for exploratory wells suspended - beginning of the period	€ 1,263	€ 1,684	€ 1,737
Increases for which is ongoing the determination of proved reserves	235	451	282
Amounts previously capitalized and expensed in the period		(217)	(109)
Reclassification to successful exploratory wells following the estimation of proved reserves		(278)	(276)
Disposals	(6)	(199)
Decrease through loss of control of subsidiary	(4,877)
Reclassification to assets held for sale	(24)
Currency translation differences	49	(178)	50
Costs for exploratory wells suspended - end of the period	€ 1,101	€ 1,263	€ 1,684

X

- Definition

The amount of costs for exploratory well that is pending the determination of proved reserves.

+ References

No definition available.

+ Details

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Namespace Prefix:	e_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

Amount of increase (decrease) in exchange differences for exploratory wells.

+ References

No definition available.

+ Details

Name:	e_CostsForExploratoryWellsSuspendedIncreaseDecreaseInExchangeDifferences
Namespace Prefix:	e_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Disposal of exploratory well during the reporting period.

+ References

No definition available.

+ Details

Name:	e_CostsForExploratoryWellsSuspendedSales
Namespace Prefix:	e_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Disclosure Of Property Plant And Equipment Explanatory

+ References

No definition available.

+ Details

Name:	e_DisclosureOfPropertyPlantAndEquipmentExplanatoryAbstract
Namespace Prefix:	e_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of reclassification of property,plant and equipment.

+ References

No definition available.

+ Details

Name:	e_ReclassificationToDiscontinuedOperationsAndAssetsHeldForSalePropertyPlantAndEquipment
Namespace Prefix:	e_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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 resulting from the loss of control of a subsidiary. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 16
-IssueDate 2018-01-01
-Paragraph 73
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_e&doctype=Standard
-URIDate 2018-03-16

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration