XML 55 R35.htm IDEA: XBRL DOCUMENT
v3.8.0.1

REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Current Regulatory Balancing Accounts, Net) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Total regulatory balancing accounts receivable |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | $ 1,367 | $ 1,222
Total regulatory balancing accounts receivable | Electric distribution |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 176 | 0
Total regulatory balancing accounts receivable | Electric transmission |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 125 | 139
Total regulatory balancing accounts receivable | Utility generation |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 203 | 0
Total regulatory balancing accounts receivable | Gas distribution and transmission |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 269 | 486
Total regulatory balancing accounts receivable | Energy procurement |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 1 | 71
Total regulatory balancing accounts receivable | Public purpose programs |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 115 | 103
Total regulatory balancing accounts receivable | Other |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 478 | 423
Total regulatory balancing accounts payable |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 1,264 | 1,120
Total regulatory balancing accounts payable | Electric distribution |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 0 | 72
Total regulatory balancing accounts payable | Electric transmission |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 108 | 120
Total regulatory balancing accounts payable | Utility generation |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 0 | 14
Total regulatory balancing accounts payable | Energy procurement |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 265 | 149
Total regulatory balancing accounts payable | Public purpose programs |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | 491 | 452
Total regulatory balancing accounts payable | Other |  |
Regulatory Assets [Line Items] |  |
Total regulatory balancing accounts, net | $ 400 | $ 313

X
- Definition The Utility's current regulatory balancing accounts represent the amounts expected to be received from or refunded to the Utility's customers through authorized rate adjustments within the next 12 months. + References No definition available. + Details
Name: | pcg_TotalCurrentRegulatoryBalancingAccounts
Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_RegulatoryAssetLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pcg_RegulatoryBalancingAccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_DistributionRevenueAdjustmentMechanismMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=us-gaap_ElectricTransmissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_UtilityGenerationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_GasFixedCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_EnergyProcurementCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_PublicPurposeProgramsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pcg_RegulatoryBalancingAccountsAxis=pcg_OtherCurrentBalancingAccountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pcg_RegulatoryBalancingAccountsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |