CONDENSED CONSOLIDATED STATEMENTS OF EQUITY, UTILITY - USD ($) $ in Millions	Total	Pacific Gas & Electric Co (Utility)	Total Shareholders' Equity	Total Shareholders' Equity Pacific Gas & Electric Co (Utility)	Preferred Stock Pacific Gas & Electric Co (Utility)	Common Stock	Common Stock Pacific Gas & Electric Co (Utility)	Additional Paid-in Capital Pacific Gas & Electric Co (Utility)	Reinvested Earnings	Reinvested Earnings Pacific Gas & Electric Co (Utility)	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Pacific Gas & Electric Co (Utility)
Beginning balance at Dec. 31, 2020	$ 21,253		$ 21,001	$ 25,476	$ 258	$ 30,224	$ 1,322	$ 28,286	$ (9,196)	$ (4,385)	$ (27)	$ (5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	123		123	177					123	177
Other comprehensive income (loss)	1		1								1
Ending balance at Mar. 31, 2021	21,379		21,127	25,653	258	30,226	1,322	28,286	(9,073)	(4,208)	(26)	(5)
Beginning balance at Dec. 31, 2020	21,253		21,001	25,476	258	30,224	1,322	28,286	(9,196)	(4,385)	(27)	(5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	524	$ 617
Other comprehensive income (loss)	1	0
Ending balance at Jun. 30, 2021	21,799		21,547	26,093	258	30,245	1,322	28,286	(8,672)	(3,768)	(26)	(5)
Beginning balance at Mar. 31, 2021	21,379		21,127	25,653	258	30,226	1,322	28,286	(9,073)	(4,208)	(26)	(5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	401	440	401	440					401	440
Other comprehensive income (loss)	0	0	0								0
Ending balance at Jun. 30, 2021	21,799		21,547	$ 26,093	258	30,245	1,322	28,286	(8,672)	(3,768)	(26)	(5)
Beginning balance at Dec. 31, 2021	21,223	25,610	20,971		258	35,129	1,322	28,286	(9,284)	(4,247)	(20)	(9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	478	530	478						478	530
Other comprehensive income (loss)		1										1
Preferred stock dividend requirement of subsidiary in arrears	(59)	(59)	(59)						(59)	(59)
Preferred stock dividend requirement		(2)								(2)
Ending balance at Mar. 31, 2022	21,644	26,080	21,392		258	34,726	1,322	28,286	(8,867)	(3,778)	(20)	(8)
Beginning balance at Dec. 31, 2021	21,223	25,610	20,971		258	35,129	1,322	28,286	(9,284)	(4,247)	(20)	(9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	838	1,130
Other comprehensive income (loss)	(5)	(4)
Ending balance at Jun. 30, 2022	22,019	26,458	21,767		258	34,141	1,322	28,498	(8,511)	(3,607)	(25)	(13)
Beginning balance at Mar. 31, 2022	21,644	26,080	21,392		258	34,726	1,322	28,286	(8,867)	(3,778)	(20)	(8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	360	600	360						360	600
Other comprehensive income (loss)	(5)	(5)	(5)								(5)	(5)
Equity Contribution		212						212
Preferred stock dividend requirement		(4)								(4)
Common stock dividend		(425)								(425)
Ending balance at Jun. 30, 2022	$ 22,019	$ 26,458	$ 21,767		$ 258	$ 34,141	$ 1,322	$ 28,498	$ (8,511)	$ (3,607)	$ (25)	$ (13)