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Property, plant and equipment - Additional information (Details) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Property, plant and equipment |  |  |  |
Borrowing costs capitalised | € 73 | € 93 | € 52 |
Capital expenditure | 4,407 | 8,049 |  |
Currency translation differences | (4,140) | 1,044 |  |
Initial recognition and changes in estimates | 955 | 2,074 |  |
Write-off | 305 | 270 |  |
Property, plant and equipment | 53,943 | 62,192 | 60,302 |
Property, plant and equipment, pledged as security | 24 | 24 |  |
Government grants | 103 | € 112 |  |
Property, plant and equipment subject to operating leases |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 358 |  |  |
Minimum |  |  |  |
Property, plant and equipment |  |  |  |
Interest rate used for capitalizing finance expense | 1.30% | 2.60% |  |
Maximum |  |  |  |
Property, plant and equipment |  |  |  |
Interest rate used for capitalizing finance expense | 2.20% | 2.80% |  |
Accumulated impairment |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € (20,343) | € (18,226) |  |
Estimated costs for social projects |  |  |  |
Property, plant and equipment |  |  |  |
Initial recognition and changes in estimates | 439 |  |  |
US Dollars |  |  |  |
Property, plant and equipment |  |  |  |
Currency translation differences | (4,068) |  |  |
Nigeria | Oil Prospecting License 245 |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | 1,085 |  |  |
Unproved mineral interest |  |  |  |
Property, plant and equipment |  |  |  |
Capital expenditure | 57 | 256 |  |
Currency translation differences | (170) | 52 |  |
Property, plant and equipment | 1,763 | 2,162 | 2,478 |
Unproved mineral interest | Nigeria | Oil Prospecting License 245 |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 800 |  |  |
Unproved mineral interest | Nigeria | Oil Prospecting License 245 | International oil company |  |  |  |
Property, plant and equipment |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
Unproved mineral interest | Nigeria | Oil Prospecting License 245 | Nigeria Government |  |  |  |
Property, plant and equipment |  |  |  |
Proportion of ownership interest in joint operation | 50.00% |  |  |
E&P wells, plant and machinery |  |  |  |
Property, plant and equipment |  |  |  |
Capital expenditure | € 6 | 144 |  |
Currency translation differences | (3,325) | 815 |  |
Initial recognition and changes in estimates | 870 | 2,028 |  |
Property, plant and equipment | 39,648 | 46,492 | 42,856 |
E&P wells, plant and machinery | Egypt, Italy, Algeria, Iraq, United States, Kazakhstan, and Mexico |  |  |  |
Property, plant and equipment |  |  |  |
Transfers | 1,690 |  |  |
E&P exploration assets and appraisal |  |  |  |
Property, plant and equipment |  |  |  |
Capital expenditure | 265 | 508 |  |
Currency translation differences | (119) | 24 |  |
Initial recognition and changes in estimates | (9) | 25 |  |
Write-off | 296 | 216 |  |
Property, plant and equipment | 1,341 | 1,563 | 1,267 |
E&P exploration assets and appraisal | Libya, United States, Angola, Egypt, Oman, Mexico and Lebanon |  |  |  |
Property, plant and equipment |  |  |  |
Write-off | 296 |  |  |
Suspended exploration wells pending final determination |  |  |  |
Property, plant and equipment |  |  |  |
Currency translation differences | (112) | 21 | 49 |
Property, plant and equipment | 1,268 | 1,246 | 1,101 | € 1,263
Exploration wells in progress |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | 66 |  |  |
Exploration & Production |  |  |  |
Property, plant and equipment |  |  |  |
Borrowing costs capitalised | 51 | 71 |  |
Capital expenditure | 3,444 | 6,889 |  |
Bonuses included in capital expenditure | 57 |  |  |
Exploration & Production | Unproved mineral interest | Algeria |  |  |  |
Property, plant and equipment |  |  |  |
Bonuses included in capital expenditure | 55 |  |  |
fields including commercial discoveries that proceeds to sanctioning | Suspended exploration wells pending final determination |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | 480 | € 505 | € 773 |
fields including commercial discoveries that proceeds to sanctioning | Suspended exploration wells pending final determination | Mozambique's offshore Area 4 |  |  |  |
Property, plant and equipment |  |  |  |
Property, plant and equipment | € 151 |  |  |

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