INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Pacific Gas & Electric Co
Federal statutory income tax rate	21.00%	35.00%	35.00%
State income tax (net of federal benefit)	7.90%	1.60%	(2.20%)
Effect of regulatory treatment of fixed asset differences	3.60%	(16.80%)	(23.40%)
Tax credits	0.10%	(1.10%)	(0.80%)
Benefit of loss carryback	0.00%	0.00%	(1.10%)
Compensation Related	(0.10%)	(0.90%)	(0.20%)
Tax Reform Adjustment	0.10%	3.00%	0.00%
Other, net	0.00%	(0.70%)	(2.50%)
Effective tax rate	32.60%	20.10%	4.80%
PG&E Corporation
Federal statutory income tax rate	21.00%	35.00%	35.00%
State income tax (net of federal benefit)	7.90%	1.50%	(2.50%)
Effect of regulatory treatment of fixed asset differences	3.60%	(16.50%)	(23.70%)
Tax credits	0.10%	(1.10%)	(0.80%)
Benefit of loss carryback	0.00%	0.00%	(1.10%)
Compensation Related	(0.20%)	(1.00%)	(0.10%)
Tax Reform Adjustment	0.10%	6.80%	0.00%
Other, net	0.00%	(1.10%)	(3.00%)
Effective tax rate	32.50%	23.60%	3.80%