XML 96 R77.htm IDEA: XBRL DOCUMENT
v3.19.2

Pension And OPEB (Schedule Of Pension And OPEB Costs) (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Pension Benefits [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | $ 13 | $ (9) | $ 25 | $ (18)
Pension Benefits [Member] | Public Service Electric and Gas Company [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | 6 | (7) | 13 | (15)
Pension Benefits [Member] | PSEG Power [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | 4 | (3) | 7 | (5)
Pension Benefits [Member] | Other Entity [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | 3 | 1 | 5 | 2
OPEB [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | (15) | 27 | (30) | 53
OPEB [Member] | Public Service Electric and Gas Company [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | (16) | 17 | (32) | 34
OPEB [Member] | PSEG Power [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | 1 | 8 | 2 | 16
OPEB [Member] | Other Entity [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total Benefit Costs | $ 0 | $ 2 | $ 0 | $ 3

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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |