CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows from Operating Activities
Net Income (Loss)	$ (7,642)	$ (6,837)	$ 1,660
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	3,234	3,036	2,854
Allowance for equity funds used during construction	(79)	(129)	(89)
Deferred income taxes and tax credits, net	(2,948)	(2,532)	1,254
Reorganization items, net	108	0	0
Disallowed capital expenditures	581	(45)	47
Other	207	332	307
Effect of changes in operating assets and liabilities:
Accounts receivable	(104)	(121)	67
Wildfire-related insurance receivable	35	(1,698)	(21)
Inventories	(80)	(73)	(18)
Accounts payable	516	409	173
Wildfire-related claims	(114)	13,665	(129)
Income taxes receivable/payable	23	(23)	160
Other current assets and liabilities	77	(281)	42
Regulatory assets, liabilities, and balancing accounts, net	(1,417)	(800)	(387)
Liabilities subject to compromise	12,222	0	0
Other noncurrent assets and liabilities	197	(151)	57
Net cash provided by operating activities	4,816	4,752	5,977
Cash Flows from Investing Activities
Capital expenditures	(6,313)	(6,514)	(5,641)
Proceeds from sales and maturities of nuclear decommissioning trust investments	956	1,412	1,291
Purchases of nuclear decommissioning trust investments	(1,032)	(1,485)	(1,323)
Other	11	23	23
Net cash used in investing activities	(6,378)	(6,564)	(5,650)
Cash Flows from Financing Activities
Proceeds from debtor-in-possession credit facility	1,850	0	0
Repayments of debtor-in-possession credit facility	(350)	0	0
Debtor-in-possession credit facility debt issuance costs	(113)	0	0
Borrowings under revolving credit facilities	0	3,960	0
Repayments under revolving credit facilities	0	(775)	0
Net repayments of commercial paper, net of discount	0	(182)	(840)
Short-term debt financing	0	600	750
Short-term debt matured	0	(750)	(500)
Proceeds from issuance of long-term debt, net of premium, discount and issuance costs	0	793	2,713
Long-term debt matured or repurchased	0	(795)	(1,445)
Common stock dividends paid	0	0	(1,021)
Other	(8)	(20)	(107)
Net cash provided by (used in) financing activities	1,464	3,031	(55)
Net change in cash, cash equivalents, and restricted cash	(98)	1,219	272
Cash, cash equivalents, and restricted cash at January 1	1,675	456	184
Cash, cash equivalents, and restricted cash at December 31	1,577	1,675	456
Less: Restricted cash and restricted cash equivalents	(7)	(7)	(7)
Cash and cash equivalents	1,570	1,668	449
Cash received (paid) for:
Interest, net of amounts capitalized	(10)	(786)	(790)
Income taxes, net	0	(49)	162
Supplemental disclosures of noncash investing and financing activities
Capital expenditures financed through accounts payable	826	368	501
Noncash common stock issuances	0	0	21
Operating lease liabilities arising from obtaining ROU assets	2,816	0	0
Pacific Gas & Electric Co
Cash Flows from Operating Activities
Net Income (Loss)	(7,622)	(6,818)	1,691
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	3,233	3,036	2,854
Allowance for equity funds used during construction	(79)	(129)	(89)
Deferred income taxes and tax credits, net	(2,952)	(2,548)	1,103
Reorganization items, net	97	0	0
Disallowed capital expenditures	581	(45)	47
Other	167	258	283
Effect of changes in operating assets and liabilities:
Accounts receivable	(132)	(122)	66
Wildfire-related insurance receivable	35	(1,698)	(21)
Inventories	(80)	(73)	(18)
Accounts payable	579	421	173
Wildfire-related claims	(114)	13,665	(129)
Income taxes receivable/payable	5	(5)	159
Other current assets and liabilities	101	(301)	59
Regulatory assets, liabilities, and balancing accounts, net	(1,417)	(800)	(390)
Liabilities subject to compromise	12,194	0	0
Other noncurrent assets and liabilities	214	(137)	128
Net cash provided by operating activities	4,810	4,704	5,916
Cash Flows from Investing Activities
Capital expenditures	(6,313)	(6,514)	(5,641)
Proceeds from sales and maturities of nuclear decommissioning trust investments	956	1,412	1,291
Purchases of nuclear decommissioning trust investments	(1,032)	(1,485)	(1,323)
Other	11	23	23
Net cash used in investing activities	(6,378)	(6,564)	(5,650)
Cash Flows from Financing Activities
Proceeds from debtor-in-possession credit facility	1,850	0	0
Repayments of debtor-in-possession credit facility	(350)	0	0
Debtor-in-possession credit facility debt issuance costs	(97)	0	0
Borrowings under revolving credit facilities	0	3,535	0
Repayments under revolving credit facilities	0	(650)	0
Net repayments of commercial paper, net of discount	0	(50)	(972)
Short-term debt financing	0	250	750
Short-term debt matured	0	(750)	(500)
Proceeds from issuance of long-term debt, net of premium, discount and issuance costs	0	793	2,713
Long-term debt matured or repurchased	0	(445)	(1,445)
Preferred stock dividends paid	0	0	(14)
Common stock dividends paid	0	0	(784)
Equity contribution from PG&E Corporation	0	45	455
Other	(8)	(20)	(93)
Net cash provided by (used in) financing activities	1,395	2,708	110
Net change in cash, cash equivalents, and restricted cash	(173)	848	376
Cash, cash equivalents, and restricted cash at January 1	1,302	454	78
Cash, cash equivalents, and restricted cash at December 31	1,129	1,302	454
Less: Restricted cash and restricted cash equivalents	(7)	(7)	(7)
Cash and cash equivalents	1,122	1,295	447
Cash received (paid) for:
Interest, net of amounts capitalized	(7)	(773)	(781)
Income taxes, net	0	(59)	162
Supplemental disclosures of noncash investing and financing activities
Capital expenditures financed through accounts payable	826	368	501
Operating lease liabilities arising from obtaining ROU assets	$ 2,807	$ 0	$ 0