WILDFIRE-RELATED CONTINGENCIES (Insurance Receivable) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	$ 1,247
Accrued insurance recoveries	45
Reimbursements	(498)
Insurance Receivable, Ending Balance	794
Resolved claims	418
Other Receivables
Insurance Receivable [Roll Forward]
Resolved claims	13
2022 Mosquito fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	0
Accrued insurance recoveries	45
Reimbursements	0
Insurance Receivable, Ending Balance	45
2021 Dixie fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	563
Accrued insurance recoveries	(33)
Reimbursements	0
Insurance Receivable, Ending Balance	530
Insurance receivable	530
2020 Zogg fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	270
Accrued insurance recoveries	33
Reimbursements	(185)
Insurance Receivable, Ending Balance	118
Insurance receivable	370
2019 Kincade fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	414
Accrued insurance recoveries	0
Reimbursements	(313)
Insurance Receivable, Ending Balance	101
Insurance receivable	$ 430