INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Pacific Gas & Electric Co
Deferred income tax assets:
Tax carryforwards	$ 1,308	$ 650
Compensation	92	121
Income tax regulatory liability	0	79
Wildfire-related claims	6,520	3,433
Operating lease liability	640	0
Other	121	93
Total deferred income tax assets	8,681	4,376
Deferred income tax liabilities:
Property related basis differences	7,973	7,660
Regulatory balancing accounts	381	118
Operating lease right of use asset	640	0
Income tax regulatory asset	71	0
Other	58	3
Total deferred income tax liabilities	9,123	7,781
Total net deferred income tax liabilities	442	3,405
PG&E Corporation
Deferred income tax assets:
Tax carryforwards	1,390	740
Compensation	151	173
Income tax regulatory liability	0	79
Wildfire-related claims	6,520	3,433
Operating lease liability	642	0
Other	112	87
Total deferred income tax assets	8,815	4,512
Deferred income tax liabilities:
Property related basis differences	7,984	7,672
Regulatory balancing accounts	381	118
Operating lease right of use asset	642	0
Income tax regulatory asset	71	0
Other	57	3
Total deferred income tax liabilities	9,135	7,793
Total net deferred income tax liabilities	$ 320	$ 3,281