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v3.19.1

Provisions for employee benefits (Details Textual) - EUR (€) € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | € 136 | € 31 | € 3
Estimate of contributions expected to be paid to plan for next annual reporting period | 129 |  |
Exploration And Production Segment Total [Member] |  |  |
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | 181 | € 177 |
Jubilee Awards [Member] |  |  |
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | 22 |  |
Long Term Incentive Plan [Member] |  |  |
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | 8 |  |
Isopensione [Member] |  |  |
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | 132 |  |
Defined Plans [Member] |  |  |
Statement [Line Items] |  |  |
Estimate of contributions expected to be paid to plan for next annual reporting period | 48 |  |
Other Long term Plans [Member] |  |  |
Statement [Line Items] |  |  |
Net defined benefit liability (asset) | € 11 |  |

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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 147 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_147_b&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 148 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_148_d_iii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_140_a&doctype=Standard -URIDate 2018-03-16 + Details
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