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Segment Disclosures and Related Information - Other Segment Disclosure (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | $ 8,833,000,000 | $ 8,610,000,000 | $ 7,905,000,000
Consolidated total assets | 121,939,000,000 | 122,780,000,000 | 95,924,000,000
Capital expenditures and investments | 12,553,000,000 | 12,118,000,000 | 11,248,000,000
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 1,636,000,000 | 1,559,000,000 | 1,145,000,000
Consolidated total assets | 10,977,000,000 | 10,100,000,000 | 9,759,000,000
Capital expenditures and investments | 115,000,000 | 472,000,000 | 1,135,000,000
Alaska | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 3,000,000 | 3,000,000 | 32,000,000
Consolidated total assets | 20,224,000,000 | 18,030,000,000 | 16,174,000,000
Capital expenditures and investments | 3,607,000,000 | 3,194,000,000 | 1,705,000,000
Lower 48 | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 0 | 123,000,000 | 118,000,000
Consolidated total assets | 61,933,000,000 | 66,977,000,000 | 42,415,000,000
Capital expenditures and investments | 6,702,000,000 | 6,510,000,000 | 6,487,000,000
Canada | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 0 | 0 | 0
Consolidated total assets | 9,978,000,000 | 9,513,000,000 | 10,277,000,000
Capital expenditures and investments | 593,000,000 | 551,000,000 | 456,000,000
Europe, Middle East and North Africa | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 2,268,000,000 | 1,948,000,000 | 1,191,000,000
Consolidated total assets | 10,554,000,000 | 9,770,000,000 | 8,396,000,000
Capital expenditures and investments | 1,194,000,000 | 1,021,000,000 | 1,111,000,000
Asia Pacific | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 4,926,000,000 | 4,977,000,000 | 5,419,000,000
Consolidated total assets | 8,273,000,000 | 8,390,000,000 | 8,903,000,000
Capital expenditures and investments | 342,000,000 | 370,000,000 | 354,000,000
Total Segments | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Investments in and Advances to Affiliates | 7,197,000,000 | 7,051,000,000 | 6,760,000,000
Consolidated total assets | 110,962,000,000 | 112,680,000,000 | 86,165,000,000
Capital expenditures and investments | $ 12,438,000,000 | $ 11,646,000,000 | $ 10,113,000,000

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