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Investments - Net carrying amount (Details) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Investments |  |  |
Book value | € 12,092 | € 5,887 | € 6,749
Associates |  |  |
Investments |  |  |
Book value | 4,977 | 3,786 |
Associates | Var Energi ASA |  |  |
Investments |  |  |
Book value | € 763 |  |
% of the investment in associate | 63.08% |  |
Associates | Abu Dhabi Oil Refining Company (Takreer) |  |  |
Investments |  |  |
Book value | € 2,497 | € 2,151 |
% of the investment in associate | 20.00% | 20.00% |
Associates | Coral FLNG SA |  |  |
Investments |  |  |
Book value | € 330 | € 156 |
% of the investment in associate | 25.00% | 25.00% |
Associates | Qatar Liquefied Gas Company Limited (9) |  |  |
Investments |  |  |
Book value | € 302 |  |
% of the investment in associate | 25.00% |  |
Associates | Novamont SpA |  |  |
Investments |  |  |
Book value | € 255 |  |
% of the investment in associate | 35.00% |  |
Associates | ADNOC Global Trading Ltd |  |  |
Investments |  |  |
Book value | € 158 | € 42 |
% of the investment in associate | 20.00% | 20.00% |
Associates | Novis Renewables Holdings Llc |  |  |
Investments |  |  |
Book value | € 74 | € 75 |
% of the investment in associate | 49.00% | 49.00% |
Associates | Bluebell Solar Class A Holdings II LlC |  |  |
Investments |  |  |
Book value | € 73 | € 71 |
% of the investment in associate | 99.00% | 99.00% |
Associates | United Gas Derivatives Co |  |  |
Investments |  |  |
Book value | € 72 | € 75 |
% of the investment in associate | 33.33% | 33.33% |
Associates | Angola LNG Ltd |  |  |
Investments |  |  |
Book value |  | € 1,084 |
% of the investment in associate |  | 13.60% |
Associates | Other investments |  |  |
Investments |  |  |
Book value | € 453 | € 132 |
Joint ventures |  |  |
Investments |  |  |
Book value | 7,065 | 2,057 |
Joint ventures | Var Energi ASA |  |  |
Investments |  |  |
Book value |  | € 645 |
% of the investment in joint venture |  | 69.85% |
Joint ventures | Mozambique Rovuma Venture SpA |  |  |
Investments |  |  |
Book value | € 308 | € 355 |
% of the investment in joint venture | 35.71% | 35.71% |
Joint ventures | Cardon IV SA |  |  |
Investments |  |  |
Book value | € 433 | € 279 |
% of the investment in joint venture | 50.00% | 50.00% |
Joint ventures | Doggerbank Offshore Wind Farm Project 1 Holdco Ltd |  |  |
Investments |  |  |
Book value |  | € 246 |
% of the investment in joint venture |  | 20.00% |
Joint ventures | Doggerbank Offshore Wind Farm Project 2 Holdco Ltd |  |  |
Investments |  |  |
Book value |  | € 238 |
% of the investment in joint venture |  | 20.00% |
Joint ventures | Azule Energy Holdings Ltd |  |  |
Investments |  |  |
Book value | € 5,073 |  |
% of the investment in joint venture | 50.00% |  |
Joint ventures | Saipem SpA |  |  |
Investments |  |  |
Book value | € 645 | € 137 |
% of the investment in joint venture | 31.20% | 31.20% |
Joint ventures | Vårgrønn AS |  |  |
Investments |  |  |
Book value | € 370 | € 3 |
% of the investment in joint venture | 65.00% | 69.60% |
Joint ventures | GreenIT SpA [member] |  |  |
Investments |  |  |
Book value | € 74 | € 9 |
% of the investment in joint venture | 51.00% | 51.00% |
Joint ventures | Lotte Versalis Elastomers Co Ltd |  |  |
Investments |  |  |
Book value | € 41 | € 54 |
% of the investment in joint venture | 50.00% | 50.00% |
Joint ventures | Hergo Renewables SpA [member] |  |  |
Investments |  |  |
Book value | € 33 |  |
% of the investment in joint venture | 65.00% |  |
Joint ventures | Societa Oleodotti Meridionali - SOM SpA |  |  |
Investments |  |  |
Book value | € 29 | € 27 |
% of the investment in joint venture | 70.00% | 70.00% |
Joint ventures | Other investments |  |  |
Investments |  |  |
Book value | € 59 | € 64 |
Investments in unconsolidated entities controlled by Eni |  |  |
Investments |  |  |
Book value | 50 | 44 |
Investments in unconsolidated entities controlled by Eni | Eni BTC Ltd |  |  |
Investments |  |  |
Book value | € 1 | € 2 |
% of the investment in subsidiary | 100.00% | 100.00% |
Investments in unconsolidated entities controlled by Eni | Other investments |  |  |
Investments |  |  |
Book value | € 49 | € 42 |

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