INCOME TAXES (Schedule of Income Tax Provision (Benefit)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ (1)	$ (1)	$ 0
State	0	0	1
Deferred:
Federal	(1,047)	(943)	543
State	(507)	(389)	296
Tax credits	(2)	(5)	(4)
Income tax provision (benefit)	(1,557)	(1,338)	836
Pacific Gas & Electric Co (Utility)
Current:
Federal	(1)	(1)	0
State	0	0	0
Deferred:
Federal	(981)	(852)	588
State	(477)	(348)	316
Tax credits	(2)	(5)	(4)
Income tax provision (benefit)	$ (1,461)	$ (1,206)	$ 900