XML 254 R143.htm IDEA: XBRL DOCUMENT v3.21.1

Provisions for employee benefits - Analysis by geographical area related to the main actuarial assumptions (Details) - Foreign defined benefit plan	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Minimum
Statement
Discount rate	0.10%	0.00%
Rate of compensation increase	1.30%	1.30%
Rate of price inflation	0.80%	0.80%
Life expectations on retirement at age 65	13 years	13 years
Maximum
Statement
Discount rate	14.70%	13.70%
Rate of compensation increase	12.50%	12.50%
Rate of price inflation	12.20%	11.30%
Life expectations on retirement at age 65	26 years	25 years
Euro Area | Minimum
Statement
Discount rate	0.40%	0.80%
Rate of compensation increase	1.30%	1.30%
Rate of price inflation	1.30%	1.30%
Life expectations on retirement at age 65	21 years	21 years
Euro Area | Maximum
Statement
Discount rate	0.80%	1.00%
Rate of compensation increase	3.00%	3.00%
Rate of price inflation	1.90%	2.00%
Life expectations on retirement at age 65	22 years	22 years
Rest of Europe | Minimum
Statement
Discount rate	0.10%	0.00%
Rate of compensation increase	2.50%	2.50%
Rate of price inflation	0.80%	0.80%
Life expectations on retirement at age 65	23 years	24 years
Rest of Europe | Maximum
Statement
Discount rate	1.40%	2.00%
Rate of compensation increase	3.60%	3.60%
Rate of price inflation	3.10%	3.10%
Life expectations on retirement at age 65	26 years	25 years
Africa | Minimum
Statement
Discount rate	2.60%	2.60%
Rate of compensation increase	2.00%	2.00%
Rate of price inflation	2.60%	2.60%
Life expectations on retirement at age 65	13 years	13 years
Africa | Maximum
Statement
Discount rate	14.70%	13.70%
Rate of compensation increase	12.50%	12.50%
Rate of price inflation	12.20%	11.30%
Life expectations on retirement at age 65	17 years	17 years
Other areas | Minimum
Statement
Discount rate	6.40%	7.30%
Rate of compensation increase	5.00%	10.00%
Rate of price inflation	3.00%	3.30%
Other areas | Maximum
Statement
Discount rate	9.80%	11.30%
Rate of compensation increase	9.80%	11.30%
Rate of price inflation	5.00%	5.00%

X

- Definition

Ifrs Statement

+ References

No definition available.

+ Details

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

X

- Definition

The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 144
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 144
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 144
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The life expectancy after retirement used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 144
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_144&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ActuarialAssumptionOfLifeExpectancyAfterRetirement2019
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=e_ForeignDefinedBenefitPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=e_EuroAreaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=e_RestOfEuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=srt_AfricaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=e_OtherAreasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: