Name:	pseg_CleanEnergyProgramCurrent
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value on the balance sheet for obligations of greater than one year for Energy Efficiency programs the company is obligated to participate.

No definition available.

Name:	pseg_CleanEnergyProgramNoncurrent
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Proceeds from Insurance Recoveries

No definition available.

Name:	pseg_ProceedsFromInsuranceRecoveries
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Public Utilities, Property, Plant and Equipment, Addition from Service Restore

No definition available.

Name:	pseg_PublicUtilitiesPropertyPlantAndEquipmentAdditionFromServiceRestore
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Regulatory Assets, Addition for Service Restore

No definition available.

Name:	pseg_RegulatoryAssetsAdditionForServiceRestore
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Utilities, Costs Incurred to Restore Service

No definition available.

Name:	pseg_UtilitiesCostsIncurredToRestoreService
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Utilities, Costs Incurred to Repair Infrastructure to Pre-Storm Conditions

No definition available.

Name:	pseg_UtilitiesCostsIncurredtoRepairInfrastructuretoPreStormConditions
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Utilities, Costs Incurred to Restore Service portion attributable to insured property

No definition available.

Name:	pseg_UtilitiesCostsIncurredtoRestoreServiceportionattributabletoinsuredproperty
Namespace Prefix:	pseg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The excess or deficiency of insurance recoveries compared to the recorded loss incurred from an insured event (including a conversion of nonmonetary assets to monetary assets). An excess would occur from recovery of lost profits, and recoveries at current replacement cost less carrying amounts of assets that were damaged or destroyed. This element is (1) intended to be used whenever a relevant insurance event concept is needed and (2) moved to the portion of the income statement to correspond to the entity's classification as a component of operating results, nonoperating item, discontinued operations, or extraordinary item.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 30

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

Name:	us-gaap_InsuredEventGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

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

Name:	us-gaap_LossContingencyLossInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.

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=26872669&loc=d3e20235-122688

Name:	us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=pseg_NewJerseyCleanEnergyProgramUnfavorableRegulatoryActionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=pseg_SuperstormSandyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=pseg_PseAndGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=pseg_PowerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_RegulatoryAgencyDomain
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: