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ENVIRONMENTAL LIABILITIES AND EXPENDITURES (Tables) | 12 Months Ended
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Dec. 31, 2022
Environmental Remediation Obligations [Abstract] |
Schedule of current and non-current environmental remediation reserves by categories of sites |
|  | 2022 |  | 2021
millions, except number of sites |  | Number of Sites |  | Remediation Balance |  | Number of Sites |  | Remediation Balance
NPL sites |  | 30 |  |  | $ | 445 |  |  | 30 |  |  | $ | 427 |
Third-Party Sites |  | 68 |  |  | 238 |  |  | 69 |  |  | 273 |
Currently Operated Sites |  | 13 |  |  | 106 |  |  | 15 |  |  | 122 |
Closed or Non-operated Sites |  | 51 |  |  | 257 |  |  | 51 |  |  | 277 |
Total |  | 162 |  |  | $ | 1,046 |  |  | 165 |  |  | $ | 1,099 |

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