XML 102 R73.htm IDEA: XBRL DOCUMENT
v3.20.4

Leases (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) renewals | Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items] |  |
Lessor leases carrying value | $ 297 |
Public Service Electric and Gas Company |  |
Lessee, Lease, Description [Line Items] |  |
Number of lease renewal terms | 5 |
Operating lease liabilities, current | $ 13 | $ 12
PSEG Power LLC |  |
Lessee, Lease, Description [Line Items] |  |
Number of lease renewal terms | renewals | 7 |
Operating lease liabilities, current | $ 11 | 10
Lessor leases carrying value | $ 376 |
PSEG Power LLC | Minimum |  |
Lessee, Lease, Description [Line Items] |  |
Lease renewal term | 15 years |
PSEG Power LLC | Maximum |  |
Lessee, Lease, Description [Line Items] |  |
Lease renewal term | 20 years |
PSEG |  |
Lessee, Lease, Description [Line Items] |  |
Operating lease liabilities, current | $ 34 | $ 33
Services | Subsidiaries |  |
Lessee, Lease, Description [Line Items] |  |
Number of lease renewal terms | 2 |
Energy Holdings | Subsidiaries |  |
Lessee, Lease, Description [Line Items] |  |
Lessor leases carrying value | $ 83 |

X
- Definition Lessee, Operating Lease, Number Of Renewal Periods + References No definition available. + Details
Name: | pseg_LesseeOperatingLeaseNumberOfRenewalPeriods
Namespace Prefix: | pseg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of lease payments to be received by lessor for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919396-209981 + Details
Name: | us-gaap_LessorOperatingLeasePaymentsToBeReceived
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiabilityCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_CounterpartyNameAxis=pseg_ServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=pseg_EnergyHoldingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |