REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2022	Feb. 28, 2022
Regulatory Assets [Line Items]
Regulatory assets	$ 15,561	$ 17,189
Customer Harm Threshold, post-emergence transaction, recovery bonds issued				$ 7,500
Initial shareholder contribution	2,000
Pension benefits
Regulatory Assets [Line Items]
Regulatory assets	673	348
Environmental compliance costs
Regulatory Assets [Line Items]
Regulatory assets	$ 1,172	1,218
Recovery Period	32 years
Price risk management
Regulatory Assets [Line Items]
Regulatory assets	$ 167	160
Recovery Period	15 years 6 months
Catastrophic event memorandum account
Regulatory Assets [Line Items]
Regulatory assets	$ 742	1,074
Catastrophic event memorandum account | COVID-19
Regulatory Assets [Line Items]
Regulatory assets	1	43
Wildfire-related accounts
Regulatory Assets [Line Items]
Regulatory assets	$ 1,697	2,915
Wildfire-related accounts | Maximum
Regulatory Assets [Line Items]
Recovery Period	3 years
Wildfire-related accounts | Minimum
Regulatory Assets [Line Items]
Recovery Period	1 year
Deferred income taxes
Regulatory Assets [Line Items]
Regulatory assets	$ 4,771	3,543
Financing costs
Regulatory Assets [Line Items]
Regulatory assets	216	196
SB 901 securitization
Regulatory Assets [Line Items]
Regulatory assets	$ 5,194	5,249	$ 5,500
Recovery Period	28 years
General rate case memorandum accounts
Regulatory Assets [Line Items]
Regulatory assets	$ 95	1,291
Other
Regulatory Assets [Line Items]
Regulatory assets	$ 834	$ 1,195