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ENVIRONMENTAL MATTERS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accrual for Environmental Loss Contingencies [Roll Forward] |  |  |
Beginning of period | $ 284 |  |
End of period | $ 284 | $ 284 |
Expected Payment Period of Environmental Contingencies | 30 years |  |
Accrual for Environmental Loss Contingencies [Abstract] |  |  |
Accrued Environmental Loss Contingencies, Current | $ 15 | $ 10 |
Accrued Environmental Loss Contingencies, Noncurrent | Other long-term liabilities | Other long-term liabilities |
Environmental Costs [Abstract] |  |  |
Cash expenditures related to environmental protection and improvement | $ 307 | $ 314 | $ 300
Environmental capital expenditures | 70 | 65 | 60
Environmental Remediation [Member] |  |  |
Accrual for Environmental Loss Contingencies [Roll Forward] |  |  |
Beginning of period | 252 | 245 |
Changes in estimates recorded to earnings and other | 13 | 19 |
Cash reductions | (13) | (12) |
End of period | 252 | 252 | $ 245
Letters of Credit Outstanding, Amount | 150 |  |
Shared Sites [Member] |  |  |
Site Contingency [Line Items] |  |  |
Maximum funding required for environmental shared sites | 325 |  |
Amounts paid for Environmental Remediation to Date for Shared Sites | 131 |  |
Loss Contingency, Estimate of Possible Loss | 206 |  |
Environmental ARO [Member] |  |  |
Accrual for Environmental Loss Contingencies [Roll Forward] |  |  |
Best Estimate Accrued to-date For Asset Retirement Obligation | 32 | 32 |
Non Environmental ARO [Member] |  |  |
Accrual for Environmental Loss Contingencies [Roll Forward] |  |  |
Best Estimate Accrued to-date For Asset Retirement Obligation | 53 | 51 |
Minimum [Member] | Environmental Remediation [Member] |  |  |
Site Contingency [Line Items] |  |  |
Loss Contingency, Estimate of Possible Loss | 252 | 252 |
Maximum [Member] | Environmental Remediation [Member] |  |  |
Site Contingency [Line Items] |  |  |
Loss Contingency, Estimate of Possible Loss | $ 495 | $ 497 |

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