WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details) - Butte Fire - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Insurance settlements receivable	$ 50	$ 50
Pacific Gas & Electric Co
Loss Contingencies [Line Items]
Coverage for third party liability	922
Probable insurance recoveries	922
Cumulative reimbursements from insurance policies	60
Insurance settlements receivable	$ 50	$ 50

Probable Insurance Recoveries related to losses from the Butte Fire

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- Definition

Utility liability insurance for damages

+ References

No definition available.

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- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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