WILDFIRE-RELATED CONTINGENCIES (Regulatory Recovery) (Details) - 2018 Camp Fire and 2017 Northern California Wildfires	Jul. 08, 2019
Loss Contingencies [Line Items]
Customer Harm Threshold, potential regulatory adjustment, percentage	20.00%
Customer Harm Threshold, Potential regulatory adjustment, percentage of total disallowed wildlife liability	5.00%

Loss Contingency, Customer Harm Threshold, Potential Regulatory Adjustment, Percentage Of Total Disallowed Wildlife Liability

No definition available.

Name:	pcg_LossContingencyCustomerHarmThresholdPotentialRegulatoryAdjustmentPercentageOfTotalDisallowedWildlifeLiability
Namespace Prefix:	pcg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant