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Trade and other payables - Additional information (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Trade and other payables
Increase (decrease) in trade payables	€ (5,296)
Payroll payables	287	€ 255
Other payables	2,156	1,780
Payables for social security contributions	110	100
Trade and other payables	20,654	25,709
Payables to factoring companies in relation to the recognition of Eni's tax credits	728	246
Euro
Trade and other payables
Trade and other payables	10,200
US Dollars
Trade and other payables
Trade and other payables	10,421
Global Gas & LNG Portfolio
Trade and other payables
Increase (decrease) in trade payables	(5,711)
Enilive, Refining and Chemicals [member]
Trade and other payables
Increase (decrease) in trade payables	(493)
Gas take-or-pay contracts
Trade and other payables
Other payables	€ 187	€ 284

X

- Definition

The amount of current payables on social security.

+ References

No definition available.

+ Details

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X

- Definition

The amount of current payables to factoring companies in relation to the recognition of tax credits of the reporting entity.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The amount of increase (decrease) in trade payables.

+ References

No definition available.

+ Details

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- Definition

The amount of current payables that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X

- Definition

The amount of current trade payables and current other payables. [Refer: Current trade payables; Other current payables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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