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OTHER CONTINGENCIES AND COMMITMENTS (Tables) | 3 Months Ended
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Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Environmental Remediation Liability | The Utility’s environmental remediation liability is primarily included in non-current liabilities on the Condensed Consolidated Balance Sheets and is comprised of the following:
| Balance at
(in millions) | March 31, 2022 |  | December 31, 2021
Topock natural gas compressor station | $ | 296 |  |  | $ | 299 |
Hinkley natural gas compressor station | 121 |  |  | 123 |
Former MGP sites owned by the Utility or third parties (1) | 662 |  |  | 667 |
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites (2) | 112 |  |  | 104 |
Fossil fuel-fired generation facilities and sites (3) | 70 |  |  | 70 |
Total environmental remediation liability | $ | 1,261 |  |  | $ | 1,263 |
(1) Primarily driven by the following sites: San Francisco Beach Street, Vallejo, Napa, and San Francisco East Harbor. (2) Primarily driven by Geothermal landfill and Shell Pond site. (3) Primarily driven by the San Francisco Potrero Power Plant.

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