BANKRUPTCY FILING (Schedule of Liabilities Subject to Compromise) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Reorganizations [Line Items]
Financing debt	$ 23,116
Wildfire-related claims	25,548
Trade creditors	1,188
Non-qualified benefit plan	157
2001 bankruptcy disputed claims	234
Customer deposits & advances	71
Other	232
Total Liabilities Subject to Compromise	50,546	$ 0
Interest expense	14
Pacific Gas & Electric Co
Reorganizations [Line Items]
Financing debt	22,450
Wildfire-related claims	25,548
Trade creditors	1,183
Non-qualified benefit plan	20
2001 bankruptcy disputed claims	234
Customer deposits & advances	71
Other	230
Total Liabilities Subject to Compromise	49,736	0
Aggregate principal amount of debt subject to compromise	21,526
Liabilities subject to compromise, accrued interest	(286)
Post-petition interest expense	(638)
PG&E Corporation
Reorganizations [Line Items]
Financing debt	666
Wildfire-related claims	0
Trade creditors	5
Non-qualified benefit plan	137
2001 bankruptcy disputed claims	0
Customer deposits & advances	0
Other	2
Total Liabilities Subject to Compromise	810	$ 0
Aggregate principal amount of debt subject to compromise	650
Liabilities subject to compromise, accrued interest	(1)
Post-petition interest expense	$ (15)