XML 135 R102.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Commitments And Contingent Liabilities (Environmental Matters) (Detail) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2008 USD ($) | Dec. 31, 2016 USD ($) Potentially_Responsible_Party entity site Station Plant mi | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Mar. 31, 2007 Potentially_Responsible_Party | Dec. 31, 2006 | Dec. 31, 2003 Potentially_Responsible_Party
Site Contingency [Line Items] |  |  |  |  |  |  |
Percentage of residential gas supply permitted to be recovered in gas hedging by BPU |  | 80.00% |  |  |  |  |
Number of miles related to the Passaic River constituting a facility as determined by the US Environmental Protection Agency | mi |  | 17 |  |  |  |  |
Number Of Miles Pertaining To Passaic River Tidal Reach Required To Be Studied By Epa | mi |  | 8 |  |  |  |  |
Number of legal entities contacted by EPA in conjunction with Newark Bay study area contamination | entity |  | 11 |  |  |  |  |
Number of operating electric generating stations located on Hackensack River | Station |  | 2 |  |  |  |  |
Number of former MGP contamination sites located on Hackensack river in conjunction with Newark Bay study area contamination | site |  | 1 |  |  |  |  |
Accrued environmental costs |  | $ 401,000,000 | $ 415,000,000 |  |  |  |
Operation and Maintenance |  | 3,008,000,000 | 2,978,000,000 | $ 3,150,000,000 |  |  |
New England Generation Fleet |  | 13,156,000,000 | 11,842,000,000 |  |  |  |
Clean Energy Program Current |  | 142,000,000 | 142,000,000 |  |  |  |
PSE&G [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Percentage Of Cost Attributable To Potentially Responsible Party |  |  |  |  |  | 7.00% |
Accrued environmental costs |  | 332,000,000 | 365,000,000 |  |  |  |
Regulatory assets |  | 3,518,000,000 | 3,360,000,000 |  |  |  |
Operation and Maintenance |  | 1,475,000,000 | 1,560,000,000 | 1,558,000,000 |  |  |
New England Generation Fleet |  | 591,000,000 | 569,000,000 |  |  |  |
Clean Energy Program Current |  | $ 142,000,000 | 142,000,000 |  |  |  |
Power [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Ownership Percentage Of Keystone Coal Fired Plant In Pennsylvania |  | 23.00% |  |  |  |  |
Operation and Maintenance |  | $ 1,143,000,000 | 1,057,000,000 | $ 1,186,000,000 |  |  |
New England Generation Fleet |  | 12,565,000,000 | $ 11,273,000,000 |  |  |  |
PSD NSR Regulations Site Contingency [Member] | Power [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Penalty per day from date of violation-minimum |  | 25,000 |  |  |  |  |
Penalty per day from date of violation-maximum |  | 37,500 |  |  |  |  |
MGP Remediation Site Contingency [Member] | PSE&G [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Estimated expenditures, low end of range |  | 403,000,000 |  |  |  |  |
Estimated expenditures, high end of range |  | 460,000,000 |  |  |  |  |
Accrued environmental costs |  | 403,000,000 |  |  |  |  |
Remediation liability recorded as other current liabilities |  | 81,000,000 |  |  |  |  |
Remediation liability recorded as environmental costs in noncurrent liabilities |  | 322,000,000 |  |  |  |  |
Regulatory assets |  | 403,000,000 |  |  |  |  |
Remedial Investigation And Feasibility Study [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Estimated, total cost of the study |  | 30,000,000 |  |  |  |  |
Estimated Total Cost Of Study Low End of Range |  | $ 25,000,000 |  |  |  |  |
Passaic River mile 10.9 contaminant removal [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Percentage Of Cost Attributable To Potentially Responsible Party |  | 3.00% |  |  |  |  |
PSE&G's Former MGP Sites [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Estimated, total cost of the study |  | $ 190,000,000 |  |  |  |  |
Number Of Potentially Responsible Parties In Connection With Environmental Liabilities For Operations Conducted Near Passaic River | Potentially_Responsible_Party |  | 52 |  |  | 73 |  |
Number of MGP sites identified by registrant and the NJDEP requiring some level of remedial action | site |  | 38 |  |  |  |  |
Total Spend of Study to date |  | $ 158,000,000 |  |  |  |  |
Company Share of Total Spend of Study to date |  | 11,000,000 |  |  |  |  |
PSE&G's Former MGP Sites [Member] | Power [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Percentage Of Cost Attributable To Potentially Responsible Party |  |  |  |  |  | 1.00% |
Passaic River Site Contingency [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Estimated Cleanup Costs EPA Preferred Method |  | 2,300,000,000 |  |  |  |  |
Estimated cleanup costs agreed to by two potentially responsible parties | $ 80,000,000 |  |  |  |  |  |
Aggregate number of PRPs directed by the NJDEP to arrange for natural resource damage assessment and interim compensatory restoration along the lower Passaic River | Potentially_Responsible_Party |  |  |  |  |  |  | 56
Estimated cost of interim natural resource injury restoration |  | 950,000,000 |  |  |  |  |
CPG Estimated Cleanup Costs Low Estimate |  | 518,000,000 |  |  |  |  |
CPG Estimated Cleanup Costs High Estimate |  | 3,200,000,000 |  |  |  |  |
CPG Targeted Method Cleanup Costs Low Estimate |  | 518,000,000 |  |  |  |  |
CPG Targeted Remedy Cleanup Costs High Estimate |  | 772,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies |  | $ 57,000,000 |  |  |  |  |
Passaic River Site Contingency [Member] | Transferred To Power From PSE&G [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Number of operating electric generating station (Essex Site) | Plant |  | 1 |  |  |  |  |
Passaic River Site Contingency [Member] | PSE&G [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
Number of former generating electric station | Plant |  | 1 |  |  |  |  |
Number of former Manufactured Gas Plant (MGP) sites | Plant |  | 4 |  |  |  |  |
CPG Targeted Method Cleanup Costs Low Estimate |  | $ 10,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) |  | 36,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies |  | 46,000,000 |  |  |  |  |
Passaic River Site Contingency [Member] | Power [Member] |  |  |  |  |  |  |
Site Contingency [Line Items] |  |  |  |  |  |  |
CPG Targeted Method Cleanup Costs Low Estimate |  | 3,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) |  | 8,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies |  | $ 11,000,000 |  |  |  |  |

X
- Definition Aggregate Number Of MGP Sites Identified For Cleanup By New Jersey Department Of Environmental Protection + References No definition available. + Details
Name: | pseg_AggregateNumberOfMgpSitesIdentifiedForCleanupByNewJerseyDepartmentOfEnvironmentalProtection
Namespace Prefix: | pseg_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition CPG Estimated Cleanup Costs High Estimate + References No definition available. + Details
Name: | pseg_CPGEstimatedCleanupCostsHighEstimate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition CPG Estimated Cleanup Costs Low Estimate + References No definition available. + Details
Name: | pseg_CPGEstimatedCleanupCostsLowEstimate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition CPG Targeted Method Cleanup Costs Low Estimate + References No definition available. + Details
Name: | pseg_CPGTargetedMethodCleanupCostsLowEstimate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition CPG Targeted Remedy Cleanup Costs High Estimate + References No definition available. + Details
Name: | pseg_CPGTargetedRemedyCleanupCostsHighEstimate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying value on the balance sheet for obligations of less than one year for renewable energy and energy efficiency programs the company is obligated to participate. + References No definition available. + Details
Name: | pseg_CleanEnergyProgramCurrent
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Company Share of Total Spend of Study to date + References No definition available. + Details
Name: | pseg_CompanyShareofTotalSpendofStudytodate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Estimated Cleanup Costs Agreed To By Two Potentially Responsible Parties + References No definition available. + Details
Name: | pseg_EstimatedCleanupCostsAgreedToByTwoPotentiallyResponsibleParties
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Estimated Cleanup Costs EPA Preferred Method + References No definition available. + Details
Name: | pseg_EstimatedCleanupCostsEPAPreferredMethod
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Estimated Cost Of Interim Natural Resource Injury Restoration + References No definition available. + Details
Name: | pseg_EstimatedCostOfInterimNaturalResourceInjuryRestoration
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Estimated expenditures, high end of range + References No definition available. + Details
Name: | pseg_EstimatedExpendituresHighEndOfRange
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Estimated expenditures, low end of range + References No definition available. + Details
Name: | pseg_EstimatedExpendituresLowEndOfRange
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Estimated, Total Cost of Study High End of Range + References No definition available. + Details
Name: | pseg_EstimatedTotalCostOfStudyHighEndofRange
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Estimated Total Cost Of Study Low End of Range + References No definition available. + Details
Name: | pseg_EstimatedTotalCostOfStudyLowEndofRange
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number Of Additional Legal Entities Contacted By EPA In Conjunction With Newark Bay Study Area Contamination + References No definition available. + Details
Name: | pseg_NumberOfAdditionalLegalEntitiesContactedByEpaInConjunctionWithNewarkBayStudyAreaContamination
Namespace Prefix: | pseg_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Additional Potentially Responsible Parties Directed By New Jersey Department Of Environmental Protection To Arrange Damage Assessment For Lower Passaic River + References No definition available. + Details
Name: | pseg_NumberOfAdditionalPotentiallyResponsiblePartiesDirectedByNewJerseyDepartmentOfEnvironmentalProtectionToArrangeDamageAssessmentForLowerPassaicRiver
Namespace Prefix: | pseg_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of former generating electric station + References No definition available. + Details
Name: | pseg_NumberOfFormerGeneratingElectricStation
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of former Manufactured Gas Plant (MGP) sites. + References No definition available. + Details
Name: | pseg_NumberOfFormerManufacturedGasPlantMgpSites
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Former MGP Contamination Sites Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination + References No definition available. + Details
Name: | pseg_NumberOfFormerMgpContaminationSitesLocatedOnHackensackRiverInConjunctionWithNewarkBayStudyAreaContamination
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of miles pertaining to Passaic River facility as determined by EPA + References No definition available. + Details
Name: | pseg_NumberOfMilesPertainingToPassaicRiverFacilityAsDeterminedByEpa
Namespace Prefix: | pseg_
Data Type: | num:lengthItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of miles pertaining to Passaic River tidal reach required to be studied by EPA + References No definition available. + Details
Name: | pseg_NumberOfMilesPertainingToPassaicRiverTidalReachRequiredToBeStudiedByEpa
Namespace Prefix: | pseg_
Data Type: | num:lengthItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of operating electric generating station (Essex Site). + References No definition available. + Details
Name: | pseg_NumberOfOperatingElectricGeneratingStationEssexSite
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Operating Electric Generating Stations Located On Hackensack River In Conjunction With Newark Bay Study Area Contamination + References No definition available. + Details
Name: | pseg_NumberOfOperatingElectricGeneratingStationsLocatedOnHackensackRiverInConjunctionWithNewarkBayStudyAreaContamination
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of potentially responsible parties in connection with environmental liabilities for operations conducted near Passaic River + References No definition available. + Details
Name: | pseg_NumberOfPotentiallyResponsiblePartiesInConnectionWithEnvironmentalLiabilitiesForOperationsConductedNearPassaicRiver
Namespace Prefix: | pseg_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ownership percentage of Keystone Coal fired plant in Pennsylvania + References No definition available. + Details
Name: | pseg_OwnershipPercentageOfKeystoneCoalFiredPlantInPennsylvania
Namespace Prefix: | pseg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Penalty Per Day From Date Of Violation Maximum + References No definition available. + Details
Name: | pseg_PenaltyPerDayFromDateOfViolationMaximum
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Penalty Per Day From Date Of Violation Minimum + References No definition available. + Details
Name: | pseg_PenaltyPerDayFromDateOfViolationMinimum
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage Of Cost Attributable To Potentially Responsible Party + References No definition available. + Details
Name: | pseg_PercentageOfCostAttributableToPotentiallyResponsibleParty
Namespace Prefix: | pseg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of residential gas supply permitted to be recovered in gas hedging by BPU. + References No definition available. + Details
Name: | pseg_PercentageOfResidentialGasSupplyPermittedToBeRecoveredInGasHedgingByBpu
Namespace Prefix: | pseg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Remediation Liability Recorded As Other Current Liabilities + References No definition available. + Details
Name: | pseg_RemediationLiabilityRecordedAsOtherCurrentLiabilities
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Remediation Liability Recorded As Other Noncurrent Liabilities + References No definition available. + Details
Name: | pseg_RemediationLiabilityRecordedAsOtherNoncurrentLiabilities
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Spend of Study to date + References No definition available. + Details
Name: | pseg_TotalSpendofStudytodate
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
Name: | us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Increase (decrease) in the accrual for environmental loss contingencies during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
Name: | us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
Name: | us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period end amount of property, plant and equipment (PPE) related to generation or processing owned by public utility. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
Name: | us-gaap_RegulatoryAssets
Namespace Prefix: | us-gaap_
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_SiteContingencyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(b)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_PsdNsrRegulationsSiteContingencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_MgpRemediationSiteContingencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_RemedialInvestigationAndFeasibilityStudyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_PassaicRivermile10.9contaminantremovalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_PseGSFormerMgpSitesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=pseg_PassaicRiverSiteContingencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pseg_TransferredToPowerFromPseGMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |