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v3.19.1

Provisions for employee benefits (Details 2) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement [Line Items] |  |
Total interest cost (income), net |  | € 15
Plan assets [member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | € (17) | (20)
Profit and Loss [Member] |  |
Statement [Line Items] |  |
Current cost | 71 | 80
Past service cost and (gains) losses on settlements | 118 | 29
- interest cost on liabilities | 38 | 35
- interest income on plan assets | (17) | (20)
Total interest cost (income), net | 21 | 15
Remeasurements for long-term plans | 30 | 3
Employee benefits expense | 240 | 127
Payroll and related cost [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 1 | 1
Employee benefits expense | 220 | 113
Financial Income Expense [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 20 | 14
Employee benefits expense | 20 | 14
TFR [Member] |  |
Statement [Line Items] |  |
- interest cost on liabilities | 4 | 3
Total interest cost (income), net | 4 | 3
Employee benefits expense | 4 | 3
TFR [Member] | Financial Income Expense [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 4 | 3
Employee benefits expense | 4 | 3
Foreign defined benefit plan [Member] |  |
Statement [Line Items] |  |
Current cost | 27 | 24
Past service cost and (gains) losses on settlements | 2 | (1)
- interest cost on liabilities | 31 | 29
- interest income on plan assets | (17) | (20)
Total interest cost (income), net | 14 | 9
Employee benefits expense | 43 | 32
Foreign defined benefit plan [Member] | Plan assets [member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | (17) | (20)
Foreign defined benefit plan [Member] | Payroll and related cost [Member] |  |
Statement [Line Items] |  |
Employee benefits expense | 29 | 23
Foreign defined benefit plan [Member] | Financial Income Expense [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 14 | 9
Employee benefits expense | 14 | 9
FISDE and other foreign medical plans [Member] |  |
Statement [Line Items] |  |
Current cost | 2 | 2
Past service cost and (gains) losses on settlements | 1 | 2
- interest cost on liabilities | 2 | 2
Total interest cost (income), net | 2 | 2
Employee benefits expense | 5 | 6
FISDE and other foreign medical plans [Member] | Payroll and related cost [Member] |  |
Statement [Line Items] |  |
Employee benefits expense | 3 | 4
FISDE and other foreign medical plans [Member] | Financial Income Expense [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 2 | 2
Employee benefits expense | 2 | 2
Other benefit plans [Member] |  |
Statement [Line Items] |  |
Current cost | 42 | 54
Past service cost and (gains) losses on settlements | 115 | 28
- interest cost on liabilities | 1 | 1
Total interest cost (income), net | 1 | 1
Remeasurements for long-term plans | 30 | 3
Employee benefits expense | 188 | 86
Other benefit plans [Member] | Payroll and related cost [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 1 | 1
Employee benefits expense | 188 | 86
Total interest cost (income), net |  |
Defined benefit plan [Member] |  |
Statement [Line Items] |  |
Current cost | 29 | 26
Past service cost and (gains) losses on settlements | 3 | 1
- interest cost on liabilities | 37 | 34
- interest income on plan assets | (17) | (20)
Total interest cost (income), net | 20 | 14
Employee benefits expense | 52 | 41
Defined benefit plan [Member] | Plan assets [member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | (17) | (20)
Defined benefit plan [Member] | Payroll and related cost [Member] |  |
Statement [Line Items] |  |
Employee benefits expense | 32 | 27
Defined benefit plan [Member] | Financial Income Expense [Member] |  |
Statement [Line Items] |  |
Total interest cost (income), net | 20 | 14
Employee benefits expense | € 20 | € 14

X
- Definition Represent the Employee benefit plans charge in profit and loss. + References No definition available. + Details
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Namespace Prefix: | e_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represent the Gain loss on re measurement of long term plans. + References No definition available. + Details
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Balance Type: | debit
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- Definition The increase (decrease) in the net other benefit liability (asset) resulting from the passage of time. + References No definition available. + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 141 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_141_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 141 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_141_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost and gains (losses) arising from settlements. [Refer: Gains (losses) arising from settlements, net defined benefit liability (asset); Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 141 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_141_d&doctype=Standard -URIDate 2018-03-16 + Details
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Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
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