WILDFIRE-RELATED CONTINGENCIES (Wildfire Fund) (Details) - USD ($) $ in Millions		3 Months Ended
	Aug. 23, 2019	Mar. 31, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Disallowance cap, transmission and distribution 2022 equity rate base		$ 4,100
Initial safety certification, documentation provided, period	90 days
Initial safety certification, period	12 months
Expected capitalization, proceeds of bond		$ 10,500
Extension period		15 years
Expected capitalization, initial contribution		$ 7,500
Expected capitalization, annual contribution		$ 300
Annual contribution period		10 years
Insurance receivable		$ 361	$ 436
2021 Dixie fire
Loss Contingencies [Line Items]
Insurance receivable		251	$ 326
2021 Dixie fire | Other noncurrent assets – other
Loss Contingencies [Line Items]
Insurance receivable		450
2021 Dixie fire | Other noncurrent assets – other | Pacific Gas & Electric Co (Utility)
Loss Contingencies [Line Items]
Insurance receivable		$ 150