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Property, plant and equipment - Stratification of suspended wells (Details) € in Millions | Dec. 31, 2023 EUR (€) WELLS | Dec. 31, 2022 EUR (€) WELLS | Dec. 31, 2021 EUR (€) WELLS | Dec. 31, 2020 EUR (€)
--- | --- | --- | --- | ---
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 56,299 | € 56,332 | € 56,299 |
Suspended exploration wells pending final determination |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 1,391 | € 1,085 | € 1,101 | € 1,268
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 28.5 | 23.8 | 35.9 |
Suspended exploration wells pending final determination | fields including wells drilled over the last 12 months |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 417 | € 204 | € 175 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 7.9 | 4.5 | 4 |
Suspended exploration wells pending final determination | fields for which the delineation campaign is in progress |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 804 | € 579 | € 567 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 14 | 11.3 | 17.9 |
Suspended exploration wells pending final determination | fields including commercial discoveries that proceeds to sanctioning |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 170 | € 302 | € 359 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 6.6 | 8 | 14 |
Suspended exploration wells pending final determination | within 1 year |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 417 | € 216 | € 175 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 7.9 | 5 | 4 |
Suspended exploration wells pending final determination | between 1 and 3 years |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 347 | € 246 | € 269 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 6.1 | 4.9 | 12.2 |
Suspended exploration wells pending final determination | beyond 3 years |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 627 | € 623 | € 657 |
Costs capitalized and suspended for exploratory well activity, number of wells in Eni's interest | WELLS | 14.5 | 13.9 | 19.7 |

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
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