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Segments - Segment Data (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | $ 90,665 | $ 45,765 | $ 64,194
Revenues inter-segment | 0 | 0 | 0
Net income/(loss) from equity accounted investments | 259 | 53 | 164
Total revenues and other income | 90,924 | 45,818 | 64,357
Purchases (net of inventory variation) | (35,160) | (20,986) | (29,532)
Operating, selling, general and administrative expenses | (9,378) | (9,537) | (10,469)
Depreciation, amortisation and net impairment losses | (11,719) | (15,235) | (13,204)
Exploration expenses | (1,004) | (3,483) | (1,854)
Total Operating expenses | (57,261) | (49,241) | (55,058)
Net operating income/(loss) | 33,663 | (3,423) | 9,299
Additions to PP&E, intangibles and equity accounted investments | 8,506 | 9,762 | 14,782
Balance sheet information [abstract] |  |  |
Equity accounted investments | 2,686 | 2,262 | 1,442
Noncurrent Assets | 84,618 | 92,623 | 95,083
Unallocated amounts [member] |  |  |
Balance sheet information [abstract] |  |  |
Noncurrent Assets | 13,406 | 13,704 | 11,152
Segments [member] |  |  |
Balance sheet information [abstract] |  |  |
Noncurrent Assets | 68,527 | 76,657 | 82,489
Segments [member] | E&P- Norway [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 269 | 91 | 1,048
Revenues inter-segment | 38,972 | 11,804 | 17,769
Net income/(loss) from equity accounted investments | 0 | 0 | 15
Total revenues and other income | 39,241 | 11,895 | 18,832
Purchases (net of inventory variation) | 0 | 0 | (1)
Operating, selling, general and administrative expenses | (3,729) | (2,829) | (3,284)
Depreciation, amortisation and net impairment losses | (4,678) | (5,546) | (5,439)
Exploration expenses | (363) | (423) | (478)
Total Operating expenses | (8,770) | (8,798) | (9,201)
Net operating income/(loss) | 30,471 | 3,097 | 9,631
Additions to PP&E, intangibles and equity accounted investments | 5,101 | 4,851 | 7,316
Balance sheet information [abstract] |  |  |
Equity accounted investments | 3 | 3 | 3
Noncurrent Assets | 35,301 | 37,733 | 34,938
Segments [member] | E&P International [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 1,113 | 451 | 1,685
Revenues inter-segment | 4,230 | 3,183 | 4,376
Net income/(loss) from equity accounted investments | 214 | (146) | 24
Total revenues and other income | 5,558 | 3,489 | 6,085
Purchases (net of inventory variation) | (58) | (72) | (34)
Operating, selling, general and administrative expenses | (1,466) | (1,439) | (1,684)
Depreciation, amortisation and net impairment losses | (3,257) | (3,471) | (2,228)
Exploration expenses | (451) | (2,071) | (668)
Total Operating expenses | (5,232) | (7,054) | (4,614)
Net operating income/(loss) | 326 | (3,565) | 1,471
Additions to PP&E, intangibles and equity accounted investments | 1,828 | 2,609 | 2,851
Balance sheet information [abstract] |  |  |
Equity accounted investments | 1,417 | 1,125 | 321
Noncurrent Assets | 15,358 | 17,835 | 21,161
Segments [member] | E&P USA [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 377 | 368 | 441
Revenues inter-segment | 3,771 | 2,247 | 3,792
Net income/(loss) from equity accounted investments | 0 | 0 | 6
Total revenues and other income | 4,149 | 2,615 | 4,239
Purchases (net of inventory variation) | 0 | 0 | 0
Operating, selling, general and administrative expenses | (1,076) | (1,313) | (1,668)
Depreciation, amortisation and net impairment losses | (1,733) | (3,824) | (4,133)
Exploration expenses | (190) | (990) | (709)
Total Operating expenses | (2,999) | (6,127) | (6,510)
Net operating income/(loss) | 1,150 | (3,512) | (2,271)
Additions to PP&E, intangibles and equity accounted investments | 690 | 1,068 | 3,004
Balance sheet information [abstract] |  |  |
Equity accounted investments | 0 | 0 | 0
Noncurrent Assets | 11,406 | 12,586 | 16,929
Segments [member] | MMP [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 87,025 | 44,605 | 60,491
Revenues inter-segment | 321 | 309 | 439
Net income/(loss) from equity accounted investments | 22 | 31 | 25
Total revenues and other income | 87,368 | 44,945 | 60,955
Purchases (net of inventory variation) | (80,873) | (38,072) | (54,454)
Operating, selling, general and administrative expenses | (4,276) | (5,060) | (4,897)
Depreciation, amortisation and net impairment losses | (1,079) | (1,453) | (600)
Exploration expenses | 0 | 0 | 0
Total Operating expenses | (86,227) | (44,586) | (59,951)
Net operating income/(loss) | 1,141 | 359 | 1,004
Additions to PP&E, intangibles and equity accounted investments | 221 | 190 | 788
Balance sheet information [abstract] |  |  |
Equity accounted investments | 113 | 92 | 90
Noncurrent Assets | 3,019 | 4,368 | 5,248
Segments [member] | REN [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 1,394 | 18 | 258
Revenues inter-segment | 0 | 0 | 0
Net income/(loss) from equity accounted investments | 16 | 163 | 95
Total revenues and other income | 1,411 | 181 | 353
Purchases (net of inventory variation) | 0 | 0 | 0
Operating, selling, general and administrative expenses | (163) | (215) | (192)
Depreciation, amortisation and net impairment losses | (3) | (1) | (1)
Exploration expenses | 0 | 0 | 0
Total Operating expenses | (166) | (216) | (193)
Net operating income/(loss) | 1,245 | (35) | 160
Additions to PP&E, intangibles and equity accounted investments | 455 | 31 | 175
Balance sheet information [abstract] |  |  |
Equity accounted investments | 1,108 | 1,017 | 1,003
Noncurrent Assets | 154 | 3 | 187
Segments [member] | Other [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 485 | 232 | 269
Revenues inter-segment | 5 | 4 | 4
Net income/(loss) from equity accounted investments | 7 | 5 | (1)
Total revenues and other income | 497 | 241 | 271
Purchases (net of inventory variation) | (1) | (1) | (1)
Operating, selling, general and administrative expenses | 264 | 634 | 465
Depreciation, amortisation and net impairment losses | (970) | (939) | (803)
Exploration expenses | 0 | (1) | 0
Total Operating expenses | (707) | (304) | (339)
Net operating income/(loss) | (210) | (63) | (68)
Additions to PP&E, intangibles and equity accounted investments | 212 | 1,013 | 648
Balance sheet information [abstract] |  |  |
Equity accounted investments | 45 | 25 | 25
Noncurrent Assets | 3,288 | 4,132 | 4,026
Eliminations [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues third party, other revenues and other income | 0 | 0 | 0
Revenues inter-segment | (47,300) | (17,547) | (26,379)
Net income/(loss) from equity accounted investments | 0 | 0 | 0
Total revenues and other income | (47,300) | (17,547) | (26,379)
Purchases (net of inventory variation) | 45,773 | 17,157 | 24,958
Operating, selling, general and administrative expenses | 1,066 | 685 | 793
Depreciation, amortisation and net impairment losses | 0 | 0 | 0
Exploration expenses | 0 | 0 | 0
Total Operating expenses | 46,839 | 17,842 | 25,750
Net operating income/(loss) | (461) | 296 | (629)
Additions to PP&E, intangibles and equity accounted investments | 0 | 0 | 0
Balance sheet information [abstract] |  |  |
Equity accounted investments | 0 | 0 | 0
Noncurrent Assets | $ 0 | $ 0 | $ 0

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