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Leases Leases (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2019 USD ($) renewals
Lessee, Lease, Description [Line Items] |
Lessor leases carrying value | $ 263
Public Service Electric and Gas Company [Member] |
Lessee, Lease, Description [Line Items] |
Operating Lease, Liability, Current | $ 11
Number of lease renewal terms | renewals | 2
Public Service Electric and Gas Company [Member] | Maximum |
Lessee, Lease, Description [Line Items] |
Lease renewal term | 5 years
PSEG Power [Member] |
Lessee, Lease, Description [Line Items] |
Operating Lease, Liability, Current | $ 11
Lease renewal term | 5 years
Number of lease renewal terms | renewals | 1
Lessor leases carrying value | $ 337
PSEG Power [Member] | Minimum [Member] |
Lessee, Lease, Description [Line Items] |
Lease renewal term | 15 years
PSEG Power [Member] | Maximum |
Lessee, Lease, Description [Line Items] |
Lease renewal term | 20 years
PSEG |
Lessee, Lease, Description [Line Items] |
Operating Lease, Liability, Current | $ 32
Services | Subsidiaries |
Lessee, Lease, Description [Line Items] |
Lease renewal term | 5 years
Number of lease renewal terms | renewals | 2
Energy Holdings | Subsidiaries |
Lessee, Lease, Description [Line Items] |
Lease renewal term | 5 years
Number of lease renewal terms | renewals | 8
Lessor leases carrying value | $ 25

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- 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=77888426&loc=SL77918673-209980 + Details
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- 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=119202524&loc=SL77919396-209981 + Details
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- 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=77888419&loc=SL77918627-209977 + Details
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