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Right-of-use assets and lease liabilities - Amounts recognized in the profit and loss account (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other income and revenues |  |  |
Income from remeasurement of lease liabilities | € 17 | € 6 | € 18
Other income and revenues | 17 | 6 | 18
Purchases, services and other |  |  |
Short-term leases | 59 | 113 | 85
Low-value leases | 37 | 27 | 31
Variable lease payments not included in the measurement of lease liabilities | 20 | 14 | 14
Capitalised direct cost associated with self-constructed assets - tangible assets | (5) | (5) | (4)
Purchases, services and other | 111 | 149 | 126
Depreciation and impairments |  |  |
Depreciation of RoU leased assets | 973 | 1,013 | 928
Capitalized amortization of RoU leased assets - tangible assets | (199) | (186) | (110)
Impairment losses of RoU leased assets | 41 | 18 | 59
Reversals of RoU leased assets | (5) | (14) |
Depreciation and impairments | 810 | 831 | 877
Finance income (expense) from leases |  |  |
Interests on lease liabilities | (267) | (315) | (304)
Capitalised finance expense of ROU leased assets - tangible assets | 11 | 8 | 5
Net currency translation differences on lease liabilities | 19 | (4) | (34)
Finance income (expense) from leases | € (237) | € (311) | € (333)

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- Definition The amount of capitalized finance expense of ROU leased assets - tangible assets. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Definition The amount of capitalized amortization of right-of-use assets, relating to depreciation and impairments in relation to leases. + References No definition available. + Details
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- Definition The amount of capitalized direct cost associated with self-constructed tangible assets, relating to purchases, services and other in relation to leases. + References No definition available. + Details
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- Definition n/a + References No definition available. + Details
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- Definition The amount of depreciation and impairment recognised in profit or loss for right-of-use assets. + References No definition available. + Details
Name: | e_DepreciationAndImpairmentRecognisedInProfitOrLossRightOfUseAssets
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

X
- Definition The net amount of finance income (cost) arising from leasing activities. + References No definition available. + Details
Name: | e_FinanceIncomeCostFromLeases
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Finance income (expense) on leases + References No definition available. + Details
Name: | e_FinanceIncomeExpenseOnLeasesAbstract
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- Definition The amount of impairment loss recognized in profit or loss for right-of-use assets. Always reported positively in XBRL. + References No definition available. + Details
Name: | e_ImpairmentLossRecognizedInProfitOrLossRightOfUseAssets
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- Definition The amount of income from remeasurement of lease liability. + References No definition available. + Details
Name: | e_IncomeFromRemeasurementOfLeaseLiability
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Data Type: | xbrli:monetaryItemType
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- Definition The amount of net exchange differences on lease liabilities recognised in profit or loss. + References No definition available. + Details
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- Definition The amount of other income and revenues from leases. + References No definition available. + Details
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Balance Type: | credit
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- References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of purchases, services and other, relating to leases. + References No definition available. + Details
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- Definition The amount of reversal of impairment loss recognised in profit or loss for right-of-use assets. + References No definition available. + Details
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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of the expense relating to leases of low-value assets accounted for applying paragraph 6 of IFRS 16. This expense shall not include the expense relating to short-term leases of low-value assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_d&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of the expense relating to short-term leases accounted for applying paragraph 6 of IFRS 16. This expense need not include the expense relating to leases with a lease term of one month or less. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_b&doctype=Standard -URIDate 2023-03-23 + Details
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