XML 77 R57.htm IDEA: XBRL DOCUMENT
v3.8.0.1

CONTINGENCIES AND COMMITMENTS (Other Matters) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Pacific Gas & Electric Co |  |
Loss Contingencies [Line Items] |  |
Accrued legal liabilities | $ 89 | $ 86

X
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to claims and litigation, regulatory proceedings, penalties and other legal matters. + References No definition available. + Details
Name: | pcg_AccruedLegalLiabilities
Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=pcg_PacificGasElectricCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |