Percentage of equity ratio

No definition available.

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- Definition

The address at which the entity's office is registered.

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- 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.

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- Definition

The nominal value of capital issued.

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- Definition

The description of the method used to account for investments in subsidiaries. [Refer: Subsidiaries [member]]

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- Definition

The name of a subsidiary. [Refer: Subsidiaries [member]]

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- Definition

The principal place of business of a subsidiary. [Refer: Principal place of business; Subsidiaries [member]]

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

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Other information about investments - Subsidiaries - Corporate and other activities (Details)	12 Months Ended
	Dec. 31, 2020 CHF (SFr)	Dec. 31, 2020 GBP (£)	Dec. 31, 2020 EGP (ج.م.)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Subsidiaries
Share capital					€ 4,005,000,000	€ 4,005,000,000
ENI SpA
Subsidiaries
Share capital					4,005,358,876	€ 4,005,358,876
Corporate and financial companies \| Italy \| Subsidiaries One [Member]
Subsidiaries
Company name	Agenzia Giornalistica Italia SpA
Registered office	Rome
Country of operation	Italy
Share capital					2,000,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries One [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Two [Member]
Subsidiaries
Company name	D-Service Media Srl (in liquidation)
Registered office	Milan
Country of operation	Italy
Share capital					75,000
Consolidation or valuation method	Eq.
Corporate and financial companies \| Italy \| Subsidiaries Two [Member] \| D-Share SpA [Member]
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Three [Member]
Subsidiaries
Company name	D-Share SpA
Registered office	Milan
Country of operation	Italy
Share capital					121,719.25
% Equity ratio	55.21%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Three [Member] \| Third parties
Subsidiaries
% Ownership	44.79%
Corporate and financial companies \| Italy \| Subsidiaries Three [Member] \| Agi SpA [Member]
Subsidiaries
% Ownership	55.21%
Corporate and financial companies \| Italy \| Subsidiaries Four [Member]
Subsidiaries
Company name	Eni Corporate University SpA
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					3,360,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Four [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Five [Member]
Subsidiaries
Company name	Eni Energia Italia Srl
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					50,000
Consolidation or valuation method	Co.
Corporate and financial companies \| Italy \| Subsidiaries Five [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Six [Member]
Subsidiaries
Company name	Eni Nuova Energia Srl
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					50,000
Consolidation or valuation method	Co.
Corporate and financial companies \| Italy \| Subsidiaries Six [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Seven [Member]
Subsidiaries
Company name	EniProgetti SpA
Registered office	Venezia Marghera (VE)
Country of operation	Italy
Share capital					2,064,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Seven [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Eight [Member]
Subsidiaries
Company name	EniServizi SpA
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					13,427,419.08
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Eight [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Italy \| Subsidiaries Nine [Member]
Subsidiaries
Company name	Serfactoring SpA
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					5,160,000
% Equity ratio	49.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Nine [Member] \| ENI SpA
Subsidiaries
% Ownership	49.00%
Corporate and financial companies \| Italy \| Subsidiaries Nine [Member] \| Third parties
Subsidiaries
% Ownership	51.00%
Corporate and financial companies \| Italy \| Subsidiaries Ten [Member]
Subsidiaries
Company name	Servizi Aerei SpA
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					79,817,238
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Italy \| Subsidiaries Ten [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Eleven [Member]
Subsidiaries
Company name	Banque Eni SA
Registered office	Bruxelles (Belgium)
Country of operation	Belgium
Share capital					50,000,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Eleven [Member] \| Eni International BV
Subsidiaries
% Ownership	99.90%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Eleven [Member] \| Eni Oil Holdings BV
Subsidiaries
% Ownership	0.10%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Twelve [Member]
Subsidiaries
Company name	D-Share USA Corp.
Registered office	New York (USA)
Country of operation	USA
Share capital \| $				$ 0
Consolidation or valuation method	Co.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Twelve [Member] \| D-Share SpA [Member]
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Thirteen [Member]
Subsidiaries
Company name	Eni Finance International SA
Registered office	Bruxelles (Belgium)
Country of operation	Belgium
Share capital \| $				1,480,365,336
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Thirteen [Member] \| ENI SpA
Subsidiaries
% Ownership	33.61%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Thirteen [Member] \| Eni International BV
Subsidiaries
% Ownership	66.39%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Fourteen [Member]
Subsidiaries
Company name	Eni Finance USA Inc
Registered office	Dover (USA)
Country of operation	USA
Share capital \| $				15,000,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Fourteen [Member] \| Eni Petroleum Co Inc
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Fifteen [Member]
Subsidiaries
Company name	Eni Insurance DAC
Registered office	Dublin (Ireland)
Country of operation	Ireland
Share capital					500,000,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Fifteen [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Sixteen [Member]
Subsidiaries
Company name	Eni International BV
Registered office	Amsterdam (Netherlands)
Country of operation	Netherlands
Share capital					641,683,425
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Sixteen [Member] \| ENI SpA
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Seventeen [Member]
Subsidiaries
Company name	Eni International Resources Ltd
Registered office	London (United Kingdom)
Country of operation	United Kingdom
Share capital \| £		£ 50,000
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Seventeen [Member] \| ENI SpA
Subsidiaries
% Ownership	99.99%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Eighteen [Member]
Subsidiaries
Company name	Eni Next Llc
Registered office	Dover (USA)
Country of operation	USA
Share capital \| $				$ 100
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Eighteen [Member] \| Eni Petroleum Co Inc
Subsidiaries
% Ownership	100.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Nineteen [Member]
Subsidiaries
Company name	EniProgetti Egypt Ltd
Registered office	Cairo (Egypt)
Country of operation	Egypt
Share capital \| ج.م.			ج.م. 50,000
Consolidation or valuation method	Eq.
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Nineteen [Member] \| ENI SpA
Subsidiaries
% Ownership	1.00%
Corporate and financial companies \| Foreign (outside Italy) \| Subsidiaries Nineteen [Member] \| EniProgetti SpA
Subsidiaries
% Ownership	99.00%
Other activities \| Italy \| Subsidiaries Twenty [Member]
Subsidiaries
Company name	Anic Partecipazioni SpA (in liquidation)
Registered office	Gela (CL)
Country of operation	Italy
Share capital					23,519,847.16
Consolidation or valuation method	Eq.
Other activities \| Italy \| Subsidiaries Twenty [Member] \| Third parties
Subsidiaries
% Ownership	0.03%
Other activities \| Italy \| Subsidiaries Twenty [Member] \| Eni Rewind SpA
Subsidiaries
% Ownership	99.97%
Other activities \| Italy \| Subsidiaries Twenty One [Member]
Subsidiaries
Company name	Eni Rewind SpA
Registered office	San Donato Milanese (MI)
Country of operation	Italy
Share capital					355,145,040.30
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Other activities \| Italy \| Subsidiaries Twenty One [Member] \| ENI SpA
Subsidiaries
% Ownership	99.99%
Other activities \| Italy \| Subsidiaries Twenty Two [Member]
Subsidiaries
Company name	Industria Siciliana Acido Fosforico - ISAF - SpA (in liquidation)
Registered office	Gela (CL)
Country of operation	Italy
Share capital					1,300,000
Consolidation or valuation method	Eq.
Other activities \| Italy \| Subsidiaries Twenty Two [Member] \| Third parties
Subsidiaries
% Ownership	48.00%
Other activities \| Italy \| Subsidiaries Twenty Two [Member] \| Eni Rewind SpA
Subsidiaries
% Ownership	52.00%
Other activities \| Italy \| Subsidiaries Twenty Three [Member]
Subsidiaries
Company name	Ing. Luigi Conti Vecchi SpA
Registered office	Assemini (CA)
Country of operation	Italy
Share capital					5,518,620.64
% Equity ratio	100.00%
Consolidation or valuation method	F.C.
Other activities \| Italy \| Subsidiaries Twenty Three [Member] \| Eni Rewind SpA
Subsidiaries
% Ownership	100.00%
Other activities \| Foreign (outside Italy) \| Subsidiaries Twenty Five [Member]
Subsidiaries
Company name	Eni Rewind International BV
Registered office	Amsterdam (Netherlands)
Country of operation	Netherlands
Share capital					€ 20,000
Consolidation or valuation method	Eq.
Other activities \| Foreign (outside Italy) \| Subsidiaries Twenty Five [Member] \| Eni International BV
Subsidiaries
% Ownership	100.00%
Other activities \| Foreign (outside Italy) \| Subsidiaries Twenty Six [Member]
Subsidiaries
Company name	Oleodotto del Reno SA
Registered office	Coira (Switzerland)
Country of operation	Switzerland
Share capital \| SFr	SFr 1,550,000
Consolidation or valuation method	Eq.
Other activities \| Foreign (outside Italy) \| Subsidiaries Twenty Six [Member] \| Eni Rewind SpA
Subsidiaries
% Ownership	100.00%