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Other Financial Information - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | $ 246,000,000 | $ 143,000,000 | $ 390,000,000
Severance after tax | 715,000,000 |  |
After tax charges for decommissioning obligations | 400,000,000 | 1,950,000,000 |
Goodwill | 4,578,000,000 | 4,722,000,000 |
Downstream |  |  |
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | 15,000,000 | 33,000,000 | 90,000,000
Downstream | Operating Segments |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | 715,000,000 |  |
Goodwill | 352,000,000 | 352,000,000 |
Downstream | United States |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | 188,000,000 |  |
After tax charges for decommissioning obligations | 90,000,000 |  |
Downstream | International |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | 17,000,000 |  |
After tax charges for decommissioning obligations | 185,000,000 |  |
Upstream |  |  |
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | 231,000,000 | 110,000,000 | 300,000,000
After tax charges for decommissioning obligations |  | 1,765,000,000 | 1,075,000,000
Tax benefit |  | 655,000,000 |
Earnings on early contract termination |  |  | 600,000,000
Goodwill impairment loss | 0 |  |
Upstream | Operating Segments |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | 4,226,000,000 | $ 4,370,000,000 |
Upstream | United States |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | 183,000,000 |  |
Upstream | International |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | 119,000,000 |  |
After tax charges for decommissioning obligations | 125,000,000 |  |
All Other |  |  |
Business Acquisition [Line Items] |  |  |
Severance after tax | $ 208,000,000 |  |
Pension settlement costs |  |  | $ 271,000,000

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