| Segment Reporting, Reconciliation of Revenue by Segment to Consolidated |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2026 | Millions of Dollars | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Segment sales and other operating revenues | | | | | | | | | | Sales and other operating revenues | $ | 1,782 | | 13,234 | | 1,879 | | 2,564 | | 630 | | 20,089 | | 16 | | 20,105 | | | Intersegment eliminations | — | | (3) | | (658) | | — | | — | | (661) | | (9) | | (670) | | Consolidated sales and other operating revenues# | 1,782 | | 13,231 | | 1,221 | | 2,564 | | 630 | | 19,428 | | 7 | | 19,435 | | | | | | | | | | | | Significant segment expenses* | | | | | | | | | | Production and operating expenses | 500 | | 1,335 | | 203 | | 275 | | 96 | | 2,409 | | 31 | | 2,440 | | Depreciation, depletion and amortization | 353 | | 2,155 | | 152 | | 232 | | 104 | | 2,996 | | 9 | | 3,005 | | | Income tax provision (benefit) | 132 | | 651 | | 65 | | 1,301 | | 67 | | 2,216 | | (235) | | 1,981 | | | Total | 985 | | 4,141 | | 420 | | 1,808 | | 267 | | 7,621 | | (195) | | 7,426 | | | | | | | | | | | | Other segment items | | | | | | | | | | Equity in earnings of affiliates | — | | — | | — | | (56) | | (366) | | (422) | | (26) | | (448) | | | Interest income | — | | — | | — | | — | | — | | — | | (104) | | (104) | | | Interest and debt expense | — | | — | | — | | — | | — | | — | | 142 | | 142 | | | Other** | 374 | | 6,629 | | 622 | | 450 | | 201 | | 8,276 | | 142 | | 8,418 | | | Total | 374 | | 6,629 | | 622 | | 394 | | (165) | | 7,854 | | 154 | | 8,008 | | | | | | | | | | | | Net income (loss) | $ | 423 | | 2,461 | | 179 | | 362 | | 528 | | 3,953 | | 48 | | 4,001 | | #Includes revenue from physical contracts meeting the definition of a derivative that are outside the scope of ASC Topic 606 for the L48, Canada and EMENA segments of $1.6 billion, $0.1 billion and $0.5 billion, respectively. | | *The significant segment expense categories and amounts in the table above align with segment-level information that is regularly provided to the CODM. | | **Other segment items not required to be separately disclosed for each reportable segment include: | Gain (loss) on dispositions: L48 and Corporate | Other income: L48, EMENA and Corporate | Purchased commodities: Alaska, L48, Canada, EMENA and AP | | Selling, general and administrative expenses, Exploration expenses, Taxes other than income taxes and Accretion on discounted liabilities: Alaska, L48, Canada, EMENA, AP and Corporate | Impairments: Alaska | Foreign currency transaction (gain) loss: Canada, EMENA, AP and Corporate | | | | | | | | | | Other expenses: Alaska, L48, EMENA and Corporate | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2025 | Millions of Dollars | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Segment sales and other operating revenues | | | | | | | | | | Sales and other operating revenues | $ | 1,443 | | 10,541 | | 1,414 | | 1,578 | | 515 | | 15,491 | | 24 | | 15,515 | | | Intersegment eliminations | — | | (3) | | (473) | | — | | — | | (476) | | (8) | | (484) | | Consolidated sales and other operating revenues# | 1,443 | | 10,538 | | 941 | | 1,578 | | 515 | | 15,015 | | 16 | | 15,031 | | | | | | | | | | | | Significant segment expenses* | | | | | | | | | | Production and operating expenses | 564 | | 1,434 | | 218 | | 213 | | 101 | | 2,530 | | 102 | | 2,632 | | Depreciation, depletion and amortization | 327 | | 2,079 | | 142 | | 245 | | 113 | | 2,906 | | 11 | | 2,917 | | | Income tax provision (benefit) | 61 | | 345 | | 60 | | 676 | | 89 | | 1,231 | | (29) | | 1,202 | | | Total | 952 | | 3,858 | | 420 | | 1,134 | | 303 | | 6,667 | | 84 | | 6,751 | | | | | | | | | | | | Other segment items | | | | | | | | | | Equity in earnings of affiliates | — | | (3) | | — | | (157) | | (194) | | (354) | | 9 | | (345) | | | Interest income | — | | — | | — | | — | | (2) | | (2) | | (60) | | (62) | | | Interest and debt expense | — | | — | | — | | — | | — | | — | | 223 | | 223 | | | Other** | 361 | | 5,443 | | 333 | | 274 | | 99 | | 6,510 | | 228 | | 6,738 | | | Total | 361 | | 5,440 | | 333 | | 117 | | (97) | | 6,154 | | 400 | | 6,554 | | | | | | | | | | | | Net income (loss) | $ | 130 | | 1,240 | | 188 | | 327 | | 309 | | 2,194 | | (468) | | 1,726 | | #Includes revenue from physical contracts meeting the definition of a derivative that are outside the scope of ASC Topic 606 for the L48, Canada and EMENA segments of $1.5 billion, $0.1 billion and $0.1 billion, respectively. | | *The significant segment expense categories and amounts in the table above align with segment-level information that is regularly provided to the CODM. | | **Other segment items not required to be separately disclosed for each reportable segment include: | Gain (loss) on dispositions: L48 and Corporate | Other income and Selling, general and administrative expenses: L48, Canada, EMENA, AP and Corporate | Purchased commodities: Alaska, L48, Canada, EMENA and AP | Exploration expenses, Taxes other than income taxes and Accretion on discounted liabilities: Alaska, L48, Canada, EMENA, AP and Corporate | Impairments: L48 | Foreign currency transaction (gain) loss: Canada, AP and Corporate | | Other expenses: L48, EMENA and Corporate | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2026 | Millions of Dollars | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Segment sales and other operating revenues | | | | | | | | | | Sales and other operating revenues | $ | 5,178 | | 37,351 | | 5,477 | | 6,467 | | 1,805 | | 56,278 | | 53 | | 56,331 | | | Intersegment eliminations | — | | (12) | | (1,935) | | — | | — | | (1,947) | | (27) | | (1,974) | | Consolidated sales and other operating revenues# | 5,178 | | 37,339 | | 3,542 | | 6,467 | | 1,805 | | 54,331 | | 26 | | 54,357 | | | | | | | | | | | | Significant segment expenses* | | | | | | | | | | Production and operating expenses | 1,497 | | 3,864 | | 682 | | 802 | | 263 | | 7,108 | | 39 | | 7,147 | | Depreciation, depletion and amortization | 1,051 | | 6,353 | | 437 | | 712 | | 314 | | 8,867 | | 27 | | 8,894 | | | Income tax provision (benefit) | 383 | | 1,768 | | 196 | | 3,059 | | 237 | | 5,643 | | (331) | | 5,312 | | | Total | 2,931 | | 11,985 | | 1,315 | | 4,573 | | 814 | | 21,618 | | (265) | | 21,353 | | | | | | | | | | | | Other segment items | | | | | | | | | | Equity in earnings of affiliates | — | | — | | — | | (196) | | (697) | | (893) | | (41) | | (934) | | | Interest income | — | | — | | — | | — | | — | | — | | (293) | | (293) | | | Interest and debt expense | — | | — | | — | | — | | — | | — | | 522 | | 522 | | | Other** | 1,008 | | 18,906 | | 1,643 | | 1,117 | | 476 | | 23,150 | | 444 | | 23,594 | | | Total | 1,008 | | 18,906 | | 1,643 | | 921 | | (221) | | 22,257 | | 632 | | 22,889 | | | | | | | | | | | | Net income (loss) | $ | 1,239 | | 6,448 | | 584 | | 973 | | 1,212 | | 10,456 | | (341) | | 10,115 | | #Includes revenue from physical contracts meeting the definition of a derivative that are outside the scope of ASC Topic 606 for the L48, Canada and EMENA segments of $3.7 billion, $0.5 billion and $1.1 billion, respectively. | | *The significant segment expense categories and amounts in the table above align with segment-level information that is regularly provided to the CODM. | | **Other segment items not required to be separately disclosed for each reportable segment include: | Gain (loss) on dispositions: L48 and Corporate | Other income: Alaska, L48, Canada, EMENA and Corporate | Purchased commodities: Alaska, L48, Canada, EMENA and AP | | Selling, general and administrative expenses, Exploration expenses, Taxes other than income taxes and Accretion on discounted liabilities: Alaska, L48, Canada, EMENA, AP and Corporate | Impairments: Alaska and L48 | Foreign currency transaction (gain) loss: Canada, EMENA, AP and Corporate | | | | | | | | | | Other expenses: Alaska, L48, EMENA and Corporate | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2025 | Millions of Dollars | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Segment sales and other operating revenues | | | | | | | | | | Sales and other operating revenues | $ | 4,368 | | 32,055 | | 4,280 | | 4,918 | | 1,410 | | 47,031 | | 56 | | 47,087 | | | Intersegment eliminations | — | | (6) | | (1,506) | | — | | — | | (1,512) | | (23) | | (1,535) | | Consolidated sales and other operating revenues# | 4,368 | | 32,049 | | 2,774 | | 4,918 | | 1,410 | | 45,519 | | 33 | | 45,552 | | | | | | | | | | | | Significant segment expenses* | | | | | | | | | | Production and operating expenses | 1,616 | | 4,399 | | 635 | | 669 | | 251 | | 7,570 | | 140 | | 7,710 | | Depreciation, depletion and amortization | 1,043 | | 5,986 | | 416 | | 662 | | 350 | | 8,457 | | 44 | | 8,501 | | | Income tax provision (benefit) | 247 | | 1,175 | | 191 | | 2,191 | | 220 | | 4,024 | | (159) | | 3,865 | | | Total | 2,906 | | 11,560 | | 1,242 | | 3,522 | | 821 | | 20,051 | | 25 | | 20,076 | | | | | | | | | | | | Other segment items | | | | | | | | | | Equity in earnings of affiliates | — | | (11) | | — | | (445) | | (585) | | (1,041) | | (11) | | (1,052) | | | Interest income | — | | — | | — | | — | | (6) | | (6) | | (199) | | (205) | | | Interest and debt expense | — | | — | | — | | — | | — | | — | | 660 | | 660 | | | Other** | 870 | | 16,071 | | 939 | | 858 | | 230 | | 18,968 | | 559 | | 19,527 | | | Total | 870 | | 16,060 | | 939 | | 413 | | (361) | | 17,921 | | 1,009 | | 18,930 | | | | | | | | | | | | Net income (loss) | $ | 592 | | 4,429 | | 593 | | 983 | | 950 | | 7,547 | | (1,001) | | 6,546 | | #Includes revenue from physical contracts meeting the definition of a derivative that are outside the scope of ASC Topic 606 for the L48, Canada and EMENA segments of $4.2 billion, $0.5 billion and $0.5 billion, respectively. | | *The significant segment expense categories and amounts in the table above align with segment-level information that is regularly provided to the CODM. | | **Other segment items not required to be separately disclosed for each reportable segment include: | Gain (loss) on dispositions: L48 and Corporate | Other income: L48, Canada, EMENA, AP and Corporate | Purchased commodities: Alaska, L48, Canada, EMENA and AP | Selling, general and administrative expenses, Exploration expenses, Taxes other than income taxes and Accretion on discounted liabilities: Alaska, L48, Canada, EMENA, AP and Corporate | | | Impairments: L48 and EMENA | | Foreign currency transaction (gain) loss: Canada, EMENA, AP and Corporate | Other expenses: Alaska, L48, EMENA and Corporate | | |
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| Segment Reporting, Reconciliation of Other Item by Segment to Consolidated |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2026 | Millions of Dollars | | | | | | | | | | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Equity investments | $ | 3 | | 1 | | — | | 2,563 | | 4,930 | | 7,497 | | 1,745 | | 9,242 | | | Total assets | 22,188 | | 60,187 | | 9,633 | | 11,453 | | 8,397 | | 111,858 | | 14,215 | | 126,073 | | | Capital expenditures and investments | 936 | | 1,699 | | 155 | | 215 | | 97 | | 3,102 | | 31 | | 3,133 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Other Segment Disclosures | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2025 | Millions of Dollars | | | | | | | | | | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Equity investments | $ | 3 | | 127 | | — | | 2,163 | | 4,820 | | 7,113 | | 1,624 | | 8,737 | | | Total assets | 19,736 | | 64,387 | | 9,801 | | 10,405 | | 8,052 | | 112,381 | | 10,091 | | 122,472 | | | Capital expenditures and investments | 753 | | 1,571 | | 152 | | 293 | | 70 | | 2,839 | | 27 | | 2,866 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2026 | Millions of Dollars | | | | | | | | | | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Equity investments | $ | 3 | | 1 | | — | | 2,563 | | 4,930 | | 7,497 | | 1,745 | | 9,242 | | | Total assets | 22,188 | | 60,187 | | 9,633 | | 11,453 | | 8,397 | | 111,858 | | 14,215 | | 126,073 | | | Capital expenditures and investments | 2,797 | | 4,844 | | 365 | | 729 | | 270 | | 9,005 | | 100 | | 9,105 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2025 | Millions of Dollars | | | | | | | | | | | Alaska | L48 | Canada | EMENA | AP | Segment Totals | Corporate | Consolidated Total | | Equity investments | $ | 3 | | 127 | | — | | 2,163 | | 4,820 | | 7,113 | | 1,624 | | 8,737 | | | Total assets | 19,736 | | 64,387 | | 9,801 | | 10,405 | | 8,052 | | 112,381 | | 10,091 | | 122,472 | | | Capital expenditures and investments | 2,785 | | 5,089 | | 461 | | 923 | | 188 | | 9,446 | | 84 | | 9,530 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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