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Other information about investments (Details 18) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Disclosure of subsidiaries [line items] |  |  |  |
Current assets | € 36,433 | € 37,971 |  |
Non-current assets | 78,172 | 86,560 |  |
Total assets | 114,928 | 124,545 |  |
Current liabilities | 24,735 | 27,696 |  |
Non-current liabilities | 42,027 | 43,763 |  |
Total liabilities | 66,849 | 71,459 |  |
Net equity | 48,079 | 53,086 | € 57,409 | € 65,641
Operating profit | 8,012 | 2,157 | (3,076) |
Finance (expense) income | (1,236) | (885) | (1,306) |
Profit before income taxes | 6,844 | 892 | (4,277) |
Income taxes | 3,467 | 1,936 | 3,122 |
Net profit | 3,377 | (1,457) | (9,373) |
Other comprehensive income | (5,518) | 1,870 | 4,649 |
Total other comprehensive income | (2,141) | 413 | € (4,724) |
Net profit attributable to Eni | 3,374 | (1,464) |  |
Angola LNG Ltd [Member] |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Current assets | 662 | 507 |  |
- of which cash and cash equivalent | 370 | 339 |  |
Non-current assets | 7,048 | 8,376 |  |
Total assets | 7,710 | 8,883 |  |
Current liabilities | 203 | 284 |  |
Non-current liabilities | 1,610 | 1,863 |  |
- non-current financial liabilities | 1,418 | 1,699 |  |
Total liabilities | 1,813 | 2,147 |  |
Net equity | € 5,897 | € 6,736 |  |
Eni’s ownership interest (%) | 13.60% | 13.60% |  |
Book value of the investment | € 802 | € 916 |  |
Revenues and other operating income | 1,374 | 84 |  |
Operating expense | (563) | (281) |  |
Depreciation, depletion, amortization and impairments | (399) |  |  |
Operating profit | 412 | (188) |  |
Finance (expense) income | (80) | (385) |  |
Income (expense) from investments |  | (70) |  |
Profit before income taxes | 332 | (455) |  |
Net profit | 332 | (455) |  |
Other comprehensive income | (817) | 200 |  |
Total other comprehensive income | (485) | (255) |  |
Net profit attributable to Eni | 45 | (62) |  |
United Gas Derivatives Co [Member] |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Current assets | 192 | 253 |  |
- of which cash and cash equivalent | 62 | 146 |  |
Non-current assets | 91 | 140 |  |
Total assets | 283 | 393 |  |
Current liabilities | 37 | 41 |  |
Non-current liabilities |  | 1 |  |
Total liabilities | 37 | 42 |  |
Net equity | € 246 | € 351 |  |
Eni’s ownership interest (%) | 33.33% | 33.33% |  |
Book value of the investment | € 82 | € 117 |  |
Revenues and other operating income | 112 | 102 |  |
Operating expense | (44) | (61) |  |
Depreciation, depletion, amortization and impairments | (13) |  |  |
Operating profit | 55 | (13) |  |
Finance (expense) income | 6 | 28 |  |
Income (expense) from investments |  | 11 |  |
Profit before income taxes | 61 | 39 |  |
Income taxes | (14) | 5 |  |
Net profit | 47 | 44 |  |
Other comprehensive income | (39) | 11 |  |
Total other comprehensive income | 8 | 55 |  |
Net profit attributable to Eni | 16 | 14 |  |
Dividends received by the associate | 12 | 14 |  |
Other Associates [Member] |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Current assets | 182 | 1,338 |  |
- of which cash and cash equivalent | 46 | 32 |  |
Non-current assets | 1,698 | 569 |  |
Total assets | 1,880 | 1,907 |  |
Current liabilities | 339 | 1,232 |  |
- current financial liabilities | 42 | 25 |  |
Non-current liabilities | 1,050 | 270 |  |
- non-current financial liabilities | 997 | 78 |  |
Total liabilities | 1,389 | 1,502 |  |
Net equity | 491 | 405 |  |
Book value of the investment | 177 | 167 |  |
Revenues and other operating income | 462 | 1,239 |  |
Operating expense | (410) | (1,051) |  |
Depreciation, depletion, amortization and impairments | (27) | (2) |  |
Operating profit | 25 | (625) |  |
Finance (expense) income | 1 | (439) |  |
Income (expense) from investments | (30) | 224 |  |
Profit before income taxes | (4) | (215) |  |
Income taxes | (5) | (108) |  |
Net profit | (9) | (323) |  |
Other comprehensive income | (13) | (7) |  |
Total other comprehensive income | (22) | (330) |  |
Net profit attributable to Eni | (7) | (88) |  |
Dividends received by the associate | € 1 | € 39 |  |

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