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Transactions with related parties - Financing transactions with related parties (Details) - Financing transactions - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Transactions With Related Parties |  |  |
Receivables | € 1,700 | € 807 | € 971
Payables | 277 | 218 | 59
Guarantees | 1,413 | 1,533 | 1,676
Gains | 79 | 114 | 96
Charges | 46 | 26 | 36
Joint ventures and associates |  |  |
Transactions With Related Parties |  |  |
Receivables | 1,660 | 771 | 919
Payables | 117 | 179 | 19
Guarantees | 1,413 | 1,533 | 1,676
Gains | 78 | 113 | 95
Charges | 44 | 25 | 36
Angola LNG Ltd |  |  |
Transactions With Related Parties |  |  |
Guarantees |  | 228 | 249
Cardon IV SA |  |  |
Transactions With Related Parties |  |  |
Receivables | 199 | 383 | 563
Payables | 2 |  | 5
Gains | 37 | 57 | 77
Coral FLNG SA |  |  |
Transactions With Related Parties |  |  |
Receivables | 383 | 288 | 253
Gains | 4 | 22 |
Charges | 1 | 1 | 2
Coral South FLNG DMCC |  |  |
Transactions With Related Parties |  |  |
Guarantees | 1,413 | 1,304 | 1,425
Gains | 2 |  |
Saipem Group |  |  |
Transactions With Related Parties |  |  |
Receivables |  | 2 |
Payables |  | 167 |
Charges |  | 6 |
Mozambique Rovuma Venture SpA |  |  |
Transactions With Related Parties |  |  |
Receivables | 1,008 |  |
Payables | 72 |  |
Societe Centrale Electrique du Congo SA |  |  |
Transactions With Related Parties |  |  |
Receivables |  | 83 | 85
Gains |  | 7 |
Charges |  |  | 20
Other joint ventures and associates |  |  |
Transactions With Related Parties |  |  |
Receivables | 70 | 15 | 18
Payables | 43 | 12 | 14
Guarantees |  | 1 | 2
Gains | 35 | 27 | 18
Charges | 43 | 18 | 14
Investments in unconsolidated entities controlled by Eni |  |  |
Transactions With Related Parties |  |  |
Receivables | 38 | 36 | 48
Payables | 34 | 28 | 28
Gains | 1 | 1 | 1
Charges | 1 |  |
Other unconsolidated subsidiaries |  |  |
Transactions With Related Parties |  |  |
Receivables | 38 | 36 | 48
Payables | 34 | 28 | 28
Gains | 1 | 1 | 1
Charges | 1 |  |
Entities controlled by the Government |  |  |
Transactions With Related Parties |  |  |
Receivables | 2 |  | 4
Payables | 126 | 11 | 12
Charges | 1 | 1 |
Enel Group |  |  |
Transactions With Related Parties |  |  |
Payables | 109 |  |
Other entities controlled by government |  |  |
Transactions With Related Parties |  |  |
Receivables | 2 |  | 4
Payables | 17 | 11 | € 12
Charges | € 1 | € 1 |

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