Segment Disclosures and Related Information - Summary of Segment Level Net Income (Loss) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | $ 14,004,000,000 | $ 13,620,000,000 | $ 30,521,000,000 | $ 27,468,000,000 |
| Production and operating expenses | 2,572,000,000 | 2,164,000,000 | 5,078,000,000 | 4,179,000,000 |
| Depreciation, depletion and amortization | 2,838,000,000 | 2,334,000,000 | 5,584,000,000 | 4,545,000,000 |
| Income tax provision (benefit) | 1,046,000,000 | 1,330,000,000 | 2,663,000,000 | 2,587,000,000 |
| Total | 6,456,000,000 | 5,828,000,000 | 13,325,000,000 | 11,311,000,000 |
| Equity in earnings of affiliates | (315,000,000) | (403,000,000) | (707,000,000) | (824,000,000) |
| Interest income | (67,000,000) | (97,000,000) | (143,000,000) | (200,000,000) |
| Interest and debt expense | 232,000,000 | 198,000,000 | 437,000,000 | 403,000,000 |
| Other | 5,727,000,000 | 5,765,000,000 | 12,789,000,000 | 11,898,000,000 |
| Total | 5,577,000,000 | 5,463,000,000 | 12,376,000,000 | 11,277,000,000 |
| Net Income (Loss) | 1,971,000,000 | 2,329,000,000 | 4,820,000,000 | 4,880,000,000 |
| Operating Segments And Corporate Nonsegment | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 14,500,000,000 | 14,239,000,000 | 31,572,000,000 | 28,606,000,000 |
| Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | (496,000,000) | (619,000,000) | (1,051,000,000) | (1,138,000,000) |
| Alaska | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 1,315,000,000 | 1,783,000,000 | 2,925,000,000 | 3,453,000,000 |
| Production and operating expenses | 546,000,000 | 490,000,000 | 1,052,000,000 | 969,000,000 |
| Depreciation, depletion and amortization | 361,000,000 | 321,000,000 | 716,000,000 | 645,000,000 |
| Income tax provision (benefit) | 47,000,000 | 135,000,000 | 186,000,000 | 257,000,000 |
| Total | 954,000,000 | 946,000,000 | 1,954,000,000 | 1,871,000,000 |
| Equity in earnings of affiliates | 0 | 0 | 0 | 0 |
| Interest income | 0 | 0 | 0 | 0 |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | 226,000,000 | 477,000,000 | 509,000,000 | 876,000,000 |
| Total | 226,000,000 | 477,000,000 | 509,000,000 | 876,000,000 |
| Net Income (Loss) | 135,000,000 | 360,000,000 | 462,000,000 | 706,000,000 |
| Alaska | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 1,315,000,000 | 1,783,000,000 | 2,925,000,000 | 3,453,000,000 |
| Alaska | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| L48 | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 9,963,000,000 | 9,053,000,000 | 21,511,000,000 | 18,361,000,000 |
| Production and operating expenses | 1,474,000,000 | 1,158,000,000 | 2,965,000,000 | 2,240,000,000 |
| Depreciation, depletion and amortization | 2,003,000,000 | 1,557,000,000 | 3,907,000,000 | 2,989,000,000 |
| Income tax provision (benefit) | 382,000,000 | 367,000,000 | 830,000,000 | 752,000,000 |
| Total | 3,859,000,000 | 3,082,000,000 | 7,702,000,000 | 5,981,000,000 |
| Equity in earnings of affiliates | (4,000,000) | 0 | (8,000,000) | 0 |
| Interest income | 0 | 0 | 0 | 0 |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | 4,709,000,000 | 4,712,000,000 | 10,628,000,000 | 9,740,000,000 |
| Total | 4,705,000,000 | 4,712,000,000 | 10,620,000,000 | 9,740,000,000 |
| Net Income (Loss) | 1,399,000,000 | 1,259,000,000 | 3,189,000,000 | 2,640,000,000 |
| L48 | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 9,966,000,000 | 9,053,000,000 | 21,514,000,000 | 18,362,000,000 |
| L48 | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | (3,000,000) | 0 | (3,000,000) | (1,000,000) |
| Canada | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 848,000,000 | 941,000,000 | 1,833,000,000 | 1,877,000,000 |
| Production and operating expenses | 216,000,000 | 223,000,000 | 417,000,000 | 440,000,000 |
| Depreciation, depletion and amortization | 143,000,000 | 166,000,000 | 274,000,000 | 324,000,000 |
| Income tax provision (benefit) | 50,000,000 | 86,000,000 | 131,000,000 | 142,000,000 |
| Total | 409,000,000 | 475,000,000 | 822,000,000 | 906,000,000 |
| Equity in earnings of affiliates | 0 | 0 | 0 | 0 |
| Interest income | 0 | 0 | 0 | 0 |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | 290,000,000 | 205,000,000 | 606,000,000 | 530,000,000 |
| Total | 290,000,000 | 205,000,000 | 606,000,000 | 530,000,000 |
| Net Income (Loss) | 149,000,000 | 261,000,000 | 405,000,000 | 441,000,000 |
| Canada | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 1,334,000,000 | 1,553,000,000 | 2,866,000,000 | 2,997,000,000 |
| Canada | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | (486,000,000) | (612,000,000) | (1,033,000,000) | (1,120,000,000) |
| EMENA | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 1,400,000,000 | 1,296,000,000 | 3,340,000,000 | 2,753,000,000 |
| Production and operating expenses | 232,000,000 | 162,000,000 | 456,000,000 | 317,000,000 |
| Depreciation, depletion and amortization | 198,000,000 | 175,000,000 | 417,000,000 | 355,000,000 |
| Income tax provision (benefit) | 593,000,000 | 666,000,000 | 1,515,000,000 | 1,443,000,000 |
| Total | 1,023,000,000 | 1,003,000,000 | 2,388,000,000 | 2,115,000,000 |
| Equity in earnings of affiliates | (115,000,000) | (137,000,000) | (288,000,000) | (277,000,000) |
| Interest income | 0 | 0 | 0 | 0 |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | 255,000,000 | 179,000,000 | 584,000,000 | 360,000,000 |
| Total | 140,000,000 | 42,000,000 | 296,000,000 | 83,000,000 |
| Net Income (Loss) | 237,000,000 | 251,000,000 | 656,000,000 | 555,000,000 |
| EMENA | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 1,400,000,000 | 1,296,000,000 | 3,340,000,000 | 2,753,000,000 |
| EMENA | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| AP | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 471,000,000 | 543,000,000 | 895,000,000 | 1,017,000,000 |
| Production and operating expenses | 85,000,000 | 92,000,000 | 150,000,000 | 171,000,000 |
| Depreciation, depletion and amortization | 118,000,000 | 107,000,000 | 237,000,000 | 217,000,000 |
| Income tax provision (benefit) | 67,000,000 | 95,000,000 | 131,000,000 | 100,000,000 |
| Total | 270,000,000 | 294,000,000 | 518,000,000 | 488,000,000 |
| Equity in earnings of affiliates | (185,000,000) | (268,000,000) | (391,000,000) | (550,000,000) |
| Interest income | (2,000,000) | (2,000,000) | (4,000,000) | (4,000,000) |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | 58,000,000 | 75,000,000 | 131,000,000 | 127,000,000 |
| Total | (129,000,000) | (195,000,000) | (264,000,000) | (427,000,000) |
| Net Income (Loss) | 330,000,000 | 444,000,000 | 641,000,000 | 956,000,000 |
| AP | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 471,000,000 | 543,000,000 | 895,000,000 | 1,017,000,000 |
| AP | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| OI | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| Production and operating expenses | 0 | 0 | 0 | 0 |
| Depreciation, depletion and amortization | 0 | 0 | 0 | 0 |
| Income tax provision (benefit) | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 0 |
| Equity in earnings of affiliates | 0 | 0 | 0 | 0 |
| Interest income | 0 | 0 | 0 | 0 |
| Interest and debt expense | 0 | 0 | 0 | 0 |
| Other | (1,000,000) | (3,000,000) | (3,000,000) | (2,000,000) |
| Total | (1,000,000) | (3,000,000) | (3,000,000) | (2,000,000) |
| Net Income (Loss) | 1,000,000 | 3,000,000 | 3,000,000 | 2,000,000 |
| OI | Operating Segments | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| OI | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 0 | 0 | 0 | 0 |
| Corporate | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 7,000,000 | 4,000,000 | 17,000,000 | 7,000,000 |
| Production and operating expenses | 19,000,000 | 39,000,000 | 38,000,000 | 42,000,000 |
| Depreciation, depletion and amortization | 15,000,000 | 8,000,000 | 33,000,000 | 15,000,000 |
| Income tax provision (benefit) | (93,000,000) | (19,000,000) | (130,000,000) | (107,000,000) |
| Total | (59,000,000) | 28,000,000 | (59,000,000) | (50,000,000) |
| Equity in earnings of affiliates | (11,000,000) | 2,000,000 | (20,000,000) | 3,000,000 |
| Interest income | (65,000,000) | (95,000,000) | (139,000,000) | (196,000,000) |
| Interest and debt expense | 232,000,000 | 198,000,000 | 437,000,000 | 403,000,000 |
| Other | 190,000,000 | 120,000,000 | 334,000,000 | 267,000,000 |
| Total | 346,000,000 | 225,000,000 | 612,000,000 | 477,000,000 |
| Net Income (Loss) | (280,000,000) | (249,000,000) | (536,000,000) | (420,000,000) |
| Corporate | Corporate | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | 14,000,000 | 11,000,000 | 32,000,000 | 24,000,000 |
| Corporate | Intersegment eliminations | ||||
| Segment Reporting Information [Line Items] | ||||
| Consolidated sales and other operating revenues | $ (7,000,000) | $ (7,000,000) | $ (15,000,000) | $ (17,000,000) |