BANKRUPTCY FILING (Chapter 11 Claims Process) (Details) claims in Thousands, $ in Billions	Sep. 30, 2020 proofOfClaim claims	Dec. 31, 2019 USD ($)	Jun. 30, 2018 lawsuit
Debt Instrument [Line Items]
Proofs of claims | proofOfClaim	100,000
Insurance from wildfire events | $		$ 2.5
Subrogation Wildfire Trust and Fire Victim Trust
Debt Instrument [Line Items]
Proofs of claims | claims	80
Satisfaction of HoldCo Rescission or Damage Claims and Subordinated Debt
Debt Instrument [Line Items]
Number of lawsuits filed against company (lawsuit, complaint) | lawsuit			3