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CONTINGENCIES AND COMMITMENTS (Regulatory Proceedings) (Details) | 3 Months Ended
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Mar. 31, 2018 USD ($)
Potential Safety Citations |
Loss Contingencies [Line Items] |
Safety and enforcement division maximum statutory penalty per violation | $ 50,000
Safety and enforcement division administrative limit per citation | 8,000,000
Potential Safety Citations | Minimum |
Loss Contingencies [Line Items] |
S E D fines for self reported violations | 50,000
Potential Safety Citations | Maximum |
Loss Contingencies [Line Items] |
S E D fines for self reported violations | 16,800,000
Ex Parte Communications |
Loss Contingencies [Line Items] |
Payment to State General Fund | 12,000,000
Proposed penalty | 97,500,000
Gas transmission and storage revenue reduction | 63,500,000
2018 GTandS revenue requirement reduction | 31,750,000
2019 GTandS revenue requirement reduction | 31,750,000
Revenue requirement reduction in Next GRC cycle | 10,000,000
Payment to city of San Bruno | 6,000,000
Payment to city of San Carlos | 6,000,000
Disallowance of Plant Costs |
Loss Contingencies [Line Items] |
Accrual for GTandS revenue requirement reduction | 8,000,000
Payable to California General Fund and Cities of San Bruno and San Carlos |
Loss Contingencies [Line Items] |
Accrual for settlement payments | $ 24,000,000

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