SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Statement of Cash Flows) (Details) - USD ($) $ in Millions			12 Months Ended
		Aug. 11, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net Income (Loss)			$ 1,814	$ (88)	$ (1,304)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes and tax credits, net			(452)	1,783	1,097
Reorganization items, net			0	(73)	1,458
Liabilities subject to compromise			0	0	413
Net cash provided by operating activities			3,721	2,262	(19,130)
Cash Flows from Investing Activities
Net cash used in investing activities			(10,214)	(6,905)	(7,748)
Cash Flows From Financing Activities:
Bridge facility financing fees			0	0	(73)
Repayment of long-term debt			(5,968)	(87)	(764)
Intercompany note to PG&E Corporation		$ (145)
Equity Units issued			0	0	1,304
Other			53	(29)	(40)
Net cash provided by financing activities			7,133	4,323	25,928
Net change in cash, cash equivalents, and restricted cash			640	(320)	(950)
Cash, cash equivalents, and restricted cash at January 1			307	627	1,577
Cash, cash equivalents, and restricted cash at December 31			947	307	627
Cash received (paid) for:
Interest, net of amounts capitalized			(1,607)	(1,404)	(1,563)
Income taxes, net			0	(99)	0
Noncash Investing and Financing Items [Abstract]
Common stock issued in satisfaction of liabilities			0	0	8,276
Adjustments to Treasury Stock Acquired, Noncash			2,337	(4,854)	0
PG&E Corporation
Cash Flows from Operating Activities
Net Income (Loss)			1,743	(88)	(1,304)
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation amortization			95	51	28
Equity in earnings of subsidiaries			(2,160)	(139)	(412)
Deferred income taxes and tax credits, net			(126)	(60)	(50)
Reorganization items, net			0	(32)	1,548
Current income taxes receivable/payable			0	2	0
Liabilities subject to compromise			0	0	12
Other			339	81	97
Net cash provided by operating activities			(109)	(185)	(81)
Cash Flows from Investing Activities
Investment in subsidiaries			(994)	0	(12,986)
Dividends received from subsidiaries	[1]		1,275	0	0
Net cash used in investing activities			281	0	(12,986)
Cash Flows From Financing Activities:
Bridge facility financing fees			0	0	(40)
Proceeds from issuance of long-term debt			0	0	4,660
Repayment of long-term debt			(28)	(28)	(664)
Intercompany note to PG&E Corporation			(145)	145	0
Common stock issued			0	0	7,582
Equity Units issued			0	0	1,304
Other			0	(29)	0
Net cash provided by financing activities			(173)	88	12,842
Net change in cash, cash equivalents, and restricted cash			(1)	(97)	(225)
Cash, cash equivalents, and restricted cash at January 1			126	223	448
Cash, cash equivalents, and restricted cash at December 31			125	126	223
Cash received (paid) for:
Interest, net of amounts capitalized			(233)	(207)	(105)
Income taxes, net			0	1	0
Noncash Investing and Financing Items [Abstract]
Common stock issued in satisfaction of liabilities			0	0	8,276
Adjustments to Treasury Stock Acquired, Noncash			$ (2,337)	$ 4,854	$ 0

[1] Because of its nature as a holding company, PG&E Corporation classifies dividends received from subsidiaries as an investing cash flow. On June 15, 2022, the Board of Directors of the Utility reinstated the dividend on the Utility’s common stock.