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Investments - Market value of investments listed in regulated stock markets (Details) - EUR (€) € / shares in Units, € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Investments |  |  |
Book value | € 12,630 | € 12,092 | € 5,887
Joint ventures |  |  |
Investments |  |  |
Book value | € 8,250 | € 7,065 |
Joint ventures | Var Energi ASA | Ordinary shares |  |  |
Investments |  |  |
Share price |  | € 2.86287 |
Joint ventures | Saipem SpA |  |  |
Investments |  |  |
% of the investment in joint venture | 31.20% | 31.20% |
Book value | € 722 | € 645 |
Joint ventures | Saipem SpA | Ordinary shares |  |  |
Investments |  |  |
Number of shares held | 662,476,192 |  |
% of the investment in joint venture | 31.20% |  |
Share price | € 1.47 |  |
Market value of joint venture | € 915 |  |
Book value | 722 |  |
Associates |  |  |
Investments |  |  |
Book value | € 4,327 | € 4,977 |
Associates | Var Energi ASA |  |  |
Investments |  |  |
% of the investment in associate | 63.04% | 63.08% |
Book value | € 447 | € 763 |
Associates | Var Energi ASA | Ordinary shares |  |  |
Investments |  |  |
Number of shares held |  | 1,573,713,749 |
% of the investment in associate |  | 63.04% |
Market value of associate |  | € 4,505 |
Book value |  | € 447 |

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- Definition Represents the number of shares held in entities. + References No definition available. + Details
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- Definition The fair value of investments in joint ventures if there are quoted market prices for the investment. [Refer: Joint ventures [member]; Investments in joint ventures reported in separate financial statements] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_21_b_iii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The fair value of investments in associates if there are quoted market prices for the investment. [Refer: Associates [member]; Investments in associates reported in separate financial statements] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_21_b_iii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_24_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_e&doctype=Standard -URIDate 2023-03-23 + Details
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