COMMON STOCK AND SHARE-BASED COMPENSATION (Narrative) (Details) - USD ($)				3 Months Ended	12 Months Ended				30 Months Ended	45 Months Ended
	Feb. 14, 2024	Jan. 16, 2024	Nov. 27, 2023	Mar. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2023	Sep. 30, 2023	Jul. 08, 2021
Schedule of Capitalization, Equity [Line Items]
Common stock, shares outstanding (in shares)					2,133,597,758	1,987,784,948			2,133,597,758
Common stock issued, net					$ (2,517,000,000)	$ (2,337,000,000)	$ 4,854,000,000	[1]
Entity Common Stock, Shares Outstanding (in shares)	2,611,366,666
Common stock dividend declared (in dollars per share)			$ 0.01
Common stock dividends declared					$ 21,000,000
Equity capital structure percentage					52.00%				52.00%
Shares available for LTIP award (in shares)					61,716,764				61,716,764
Granted (in dollars per share)					$ 15.70	$ 11.40	$ 11.01
Total fair value					$ 64,000,000	$ 46,000,000	$ 19,000,000
Total unrecognized compensation costs					$ 74,000,000
Remaining weighted average period					1 year 5 months 1 day
Employee Stock Option
Schedule of Capitalization, Equity [Line Items]
Granted (in shares)					0	0
Weighted-average period					1 year 3 months 7 days
Restricted stock units
Schedule of Capitalization, Equity [Line Items]
Award vesting period					3 years
Tax detriment					$ 26,000,000
Performance shares
Schedule of Capitalization, Equity [Line Items]
Award vesting period					3 years
Industry performance period					3 years
Award grant date fair value recognition period					3 years
Performance shares granted (in dollars per share)					$ 13.39	$ 13.44	$ 11.83
Employee service share based compensation nonvested performance shares total compensation cost not yet recognized					$ 43,000,000
2014 LTIP, Amended
Schedule of Capitalization, Equity [Line Items]
Number of shares issued for LTIP, maximum (in shares)					91,000,000				91,000,000
2014 LTIP | Employee Stock Option
Schedule of Capitalization, Equity [Line Items]
Term of award					10 years
Award vesting period					3 years
Total unrecognized compensation costs					$ 0				$ 0
Granted (in shares)					0
Fire Victim Trust
Schedule of Capitalization, Equity [Line Items]
Number of shares exchanged (in shares)					247,743,590
Shares sold, tax impact					$ 1,200,000,000				$ 2,000,000,000
Number of shares sold (in shares)									477,743,590
Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Common stock dividend declared (in dollars per share)	$ 0.01
Common stock dividends declared		$ 21,000,000
PG&E Corporation
Schedule of Capitalization, Equity [Line Items]
Common stock to be received, value					$ 1,300,000,000				$ 1,300,000,000
PG&E Corporation | Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Common stock, shares outstanding, adjusted (in shares)	2,133,623,076
PG&E Corporation | Common Stock
Schedule of Capitalization, Equity [Line Items]
Stock issued during period, shares, new issues (in shares)										137,000,000
Common stock issued, net										$ 1,300,000,000
PG&E Corporation | Equity Units
Schedule of Capitalization, Equity [Line Items]
Stock issued during period, shares, new issues (in shares)				16,000,000
PG&E Corporation | Minimum
Schedule of Capitalization, Equity [Line Items]
Percentage of equity security ownership with board of director approval					4.75%				4.75%		4.75%
PG&E Corporation | Minimum | Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Percentage of equity security ownership with board of director approval	3.88%
PG&E Corporation | Minimum | Common Stock
Schedule of Capitalization, Equity [Line Items]
Amount of shares, right to receive				137,000,000
PG&E Corporation | Maximum | Common Stock
Schedule of Capitalization, Equity [Line Items]
Amount of shares, right to receive				168,000,000
Pacific Gas & Electric Co (Utility)
Schedule of Capitalization, Equity [Line Items]
Common stock, shares outstanding (in shares)					477,743,590				477,743,590
Pacific Gas & Electric Co (Utility) | Fire Victim Trust
Schedule of Capitalization, Equity [Line Items]
Common stock, shares outstanding (in shares)					247,743,590				247,743,590

[1] Excludes 477,743,590 shares of common stock owned by the Utility. For more information, see Note 6 of the Notes to the Consolidated Financial Statements in Item 8 of the 2021 Form 10-K .