SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 484	$ 1,570	$ 1,668
Other	1,334	639
Total current assets	9,602	10,165
Noncurrent Assets
Equipment	93,894	88,090
Accumulated depreciation	(27,758)	(26,455)
Net property, plant, and equipment	66,136	61,635
Operating lease right of use asset	1,741	2,286
TOTAL ASSETS	97,856	85,196
Current Liabilities
Long-term debt, classified as current	28	0
Operating lease liabilities	533	556
Other current liabilities	2,256	1,254
Total current liabilities	13,581	7,631
Noncurrent Liabilities
Debtor-in-possession financing	37,288	0
Operating lease liabilities	1,208	1,730
Other	3,848	2,573
Total noncurrent liabilities	63,022	21,631
Liabilities Subject to Compromise	0	50,546
Common Shareholders’ Equity
Common stock, no par value	30,224	13,038
Reinvested earnings	(9,196)	(7,892)
Accumulated other comprehensive income (loss)	(27)	(10)
Total shareholders' equity	21,001	5,136
TOTAL LIABILITIES AND EQUITY	97,856	85,196
PG&E Corporation
Current Assets
Cash and cash equivalents	223	448
Advances to affiliates	48	120
Income taxes receivable	12	12
Other	13	11
Total current assets	296	591
Noncurrent Assets
Equipment	2	2
Accumulated depreciation	(2)	(2)
Net property, plant, and equipment	0	0
Investments in subsidiaries	25,244	5,102
Other investments	186	173
Operating lease right of use asset	3	6
Deferred income taxes	237	187
Total noncurrent assets	25,670	5,468
TOTAL ASSETS	25,966	6,059
Current Liabilities
Long-term debt, classified as current	28	0
Accounts payable – other	49	47
Operating lease liabilities	3	3
Other current liabilities	72	3
Total current liabilities	152	53
Noncurrent Liabilities
Debtor-in-possession financing	4,624	0
Operating lease liabilities	0	3
Other	191	58
Total noncurrent liabilities	4,815	61
Liabilities Subject to Compromise	0	810
Common Shareholders’ Equity
Common stock, no par value	30,224	13,038
Reinvested earnings	(9,198)	(7,893)
Accumulated other comprehensive income (loss)	(27)	(10)
Total shareholders' equity	20,999	5,135
TOTAL LIABILITIES AND EQUITY	$ 25,966	$ 6,059