SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Statement of Cash Flows) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities
Net Income (Loss)		$ 2,256	$ 1,814	$ (88)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes and tax credits, net		(765)	(452)	1,783
Reorganization items, net		0	0	(73)
Net cash provided by operating activities		4,747	3,721	2,262
Cash Flows from Investing Activities
Net cash used in investing activities		(9,162)	(10,214)	(6,905)
Cash Flows From Financing Activities:
Proceeds from issuance of convertible notes, net of discount and issuance costs of $27, $0, and $0 at respective dates		2,123	0	0
Premium, discount, and issuance costs on proceeds from long-term debt		67	29	33
Repayments of long-term debt		(3,075)	(5,968)	(87)
Repayments under term loan credit facilities		(10,540)	(9,750)	(9,976)
Other		(17)	53	(29)
Net cash provided by financing activities		4,400	7,133	4,323
Net change in cash, cash equivalents, and restricted cash		(15)	640	(320)
Cash, cash equivalents, and restricted cash at January 1		947	307	627
Cash, cash equivalents, and restricted cash at September 30		932	947	307
Less: Restricted cash and restricted cash equivalents		(297)	(213)	(16)
Cash and cash equivalents		635	734	291
Cash paid for:
Interest, net of amounts capitalized		(2,286)	(1,607)	(1,404)
Income taxes, net		0	0	(99)
Noncash Investing and Financing Items [Abstract]
Changes to PG&E Corporation common stock and treasury stock in connection with the Share Exchange and Tax Matters Agreement		(2,517)	(2,337)	4,854
Common stock dividends declared but not yet paid		21	0	0
PG&E Corporation
Cash Flows from Operating Activities
Net Income (Loss)		2,242	1,743	(88)
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation amortization		4	95	51
Equity in earnings of subsidiaries		(2,530)	(2,160)	(139)
Deferred income taxes and tax credits, net		(116)	(126)	(60)
Reorganization items, net		0	0	(32)
Current income taxes receivable/payable		9	0	2
Other		40	339	81
Net cash provided by operating activities		(351)	(109)	(185)
Cash Flows from Investing Activities
Investment in subsidiaries		(1,290)	(994)	0
Dividends received from subsidiaries	[1]	1,775	1,275	0
Net cash used in investing activities		485	281	0
Cash Flows From Financing Activities:
Proceeds from issuance of convertible notes, net of discount and issuance costs of $27, $0, and $0 at respective dates		2,123	0	0
Premium, discount, and issuance costs on proceeds from long-term debt		27	0	0
Repayments of long-term debt		0	(28)	(28)
Intercompany note to PG&E Corporation		0	(145)	145
Repayments under term loan credit facilities		(2,181)	0	0
Other		(6)	0	(29)
Net cash provided by financing activities		(64)	(173)	88
Net change in cash, cash equivalents, and restricted cash		70	(1)	(97)
Cash, cash equivalents, and restricted cash at January 1		125	126	223
Cash, cash equivalents, and restricted cash at September 30		195	125	126
Less: Restricted cash and restricted cash equivalents		(3)	0	0
Cash and cash equivalents		192	125	126
Cash paid for:
Interest, net of amounts capitalized		(309)	(233)	(207)
Income taxes, net		0	0	1
Noncash Investing and Financing Items [Abstract]
Changes to PG&E Corporation common stock and treasury stock in connection with the Share Exchange and Tax Matters Agreement		(2,517)	(2,337)	4,854
Common stock dividends declared but not yet paid		$ 21	$ 0	$ 0

[1] Because of its nature as a holding company, PG&E Corporation classifies dividends received from subsidiaries as an investing cash flow.