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EQUITY (Narrative) (Details) - USD ($) $ in Millions					3 Months Ended		21 Months Ended
	May 15, 2023	Apr. 26, 2023	Feb. 28, 2023	Feb. 15, 2023	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Dec. 31, 2022	Jul. 08, 2021
Schedule Of Changes In Equity [Line Items]
Shares outstanding (in shares)		2,473,521,996
Common stock, shares outstanding (in shares)					1,995,774,083		1,995,774,083	1,987,784,948
Non-GAAP core earnings threshold					$ 6,200.0
Pacific Gas & Electric Co (Utility)
Schedule Of Changes In Equity [Line Items]
Common stock, shares outstanding (in shares)					60,000,000		60,000,000
Pacific Gas & Electric Co (Utility)
Schedule Of Changes In Equity [Line Items]
Shares outstanding (in shares)		264,374,809
Common stock, shares outstanding (in shares)					264,374,809		264,374,809	264,374,809
Common stock dividends paid			$ 425.0	$ 3.5	$ 425.0	$ 0.0
Pacific Gas & Electric Co (Utility) | Forecast
Schedule Of Changes In Equity [Line Items]
Common stock dividends paid	$ 3.5
Fire Victim Trust
Schedule Of Changes In Equity [Line Items]
Shares sold, tax impact					$ 256.0		$ 1,100.0
Number of shares sold (in shares)							290,000,000
Fire Victim Trust | Subsequent Event
Schedule Of Changes In Equity [Line Items]
Number of shares sold (in shares)		350,000,000
PG&E Corporation | Subsequent Event
Schedule Of Changes In Equity [Line Items]
Common stock, shares outstanding, adjusted (in shares)		1,868,034,816
PG&E Corporation | Minimum
Schedule Of Changes In 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 Changes In Equity [Line Items]
Percentage of equity security ownership with board of director approval		3.58%

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