WILDFIRE-RELATED CONTINGENCIES (Insurance Receivable) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	$ 436
Accrued insurance recoveries	5
Reimbursements	(80)
Insurance Receivable, Ending Balance	361
2020 Zogg fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	47
Accrued insurance recoveries	0
Reimbursements	(5)
Insurance Receivable, Ending Balance	42
Insurance receivable	374
2021 Dixie fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	326
Accrued insurance recoveries	0
Reimbursements	(75)
Insurance Receivable, Ending Balance	251
Insurance receivable	526
2022 Mosquito fire
Insurance Receivable [Roll Forward]
Insurance Receivable, Beginning Balance	63
Accrued insurance recoveries	5
Reimbursements	0
Insurance Receivable, Ending Balance	68
Insurance receivable	$ 68