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Property, Plant and Equipment - Schedule of Historical Costs of our Property, Plant and Equipment and Related Balances (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 73,637 | $ 71,203
Less accumulated depreciation | 23,305 | 22,330
Subtotal property, plant and equipment, net | 50,332 | 48,873
Capitalized major maintenance costs for reaction-based plants, net of accumulated amortization | 163 | 189
Property, plant and equipment, net | 50,495 | 49,062
Plants, pipelines and facilities |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 62,321 | 60,716
Plants, pipelines and facilities | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 3 years |
Plants, pipelines and facilities | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 45 years |
Underground and other storage facilities |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 4,753 | 4,704
Underground and other storage facilities | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 5 years |
Underground and other storage facilities | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 40 years |
Transportation equipment |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 283 | 272
Transportation equipment | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 3 years |
Transportation equipment | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 10 years |
Marine vessels |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 956 | 949
Marine vessels | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 15 years |
Marine vessels | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 30 years |
Land |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 424 | 424
Construction in progress |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 4,900 | $ 4,138
Distillation-based and reaction-based plants | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 20 years |
Distillation-based and reaction-based plants | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 35 years |
Pipelines and related equipment | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 5 years |
Pipelines and related equipment | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 45 years |
Terminal facilities | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 10 years |
Terminal facilities | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 35 years |
Buildings | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 20 years |
Buildings | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 40 years |
Office furniture and equipment | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 3 years |
Office furniture and equipment | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 20 years |
Laboratory and shop equipment | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 5 years |
Laboratory and shop equipment | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 35 years |
Underground storage facilities | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 5 years |
Underground storage facilities | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 35 years |
Storage tanks | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 10 years |
Storage tanks | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 40 years |
Water wells | Minimum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 5 years |
Water wells | Maximum |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Estimated Useful Life in Years | 35 years |
Capitalized Major Maintenance | Weighted Average |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Expected remaining amortization period | 2 years 10 months 24 days |

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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