XML 166 R159.htm IDEA: XBRL DOCUMENT v3.8.0.1

Other non-current assets (Details Textual) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
DisclosureOfOtherNoncurrentLiabilitiesExplanatoryLineItems [Line Items]
Current receivables from sale of properties	€ 118	€ 222
Long term portion of receivable from sale of properties	€ 111	133
Ownership Percentage In Project	10.00%
Other non current assets, other assets	€ 574	464
Deferred Cost [Member]
DisclosureOfOtherNoncurrentLiabilitiesExplanatoryLineItems [Line Items]
Other non current assets, other assets	56	€ 113
Deferred Cost [Member] | Nigeria [Member]
DisclosureOfOtherNoncurrentLiabilitiesExplanatoryLineItems [Line Items]
Impairment loss	44
Accumulated provisions for impairments	€ 125

X

- Definition

The amount of accumulated provisions for impairments.

+ References

No definition available.

+ Details

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Namespace Prefix:	E_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	E_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of non current portion of receivable from sale of assets.

+ References

No definition available.

+ Details

Name:	E_NonCurrentPortionOfReceivableFromSaleOfAssets
Namespace Prefix:	E_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of non-current receivables from sale of assets.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of other non-current assets that the entity does not separately disclose in the same statement or note.

+ References

No definition available.

+ Details

Name:	E_OtherNonCurrentAssetsOtherAssets
Namespace Prefix:	E_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The ownership percentage held by the entity in the project.

+ References

No definition available.

+ Details

Name:	E_OwnershipPercentageInProject
Namespace Prefix:	E_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2017-01-01
-Paragraph 130
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_b&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2017-01-01
-Paragraph 130
-Subparagraph d
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_d_ii&doctype=Standard
-URIDate 2017-03-09

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Period Type: