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Leases Reconciliation of Undiscounted Cash Flows (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Lessee, Lease, Description [Line Items] |  |
Total Minimum Lease Payments | $ 236 | $ 235
Reconciling Amount due to Discount Rate | (36) | (38)
Total Discounted Operating Lease Liabilities | 200 | 197
Public Service Electric and Gas Company |  |
Lessee, Lease, Description [Line Items] |  |
Total Minimum Lease Payments | 125 | 109
Reconciling Amount due to Discount Rate | (21) | (20)
Total Discounted Operating Lease Liabilities | 104 | 89
Other Segments |  |
Lessee, Lease, Description [Line Items] |  |
Total Minimum Lease Payments | 111 | 126
Reconciling Amount due to Discount Rate | (15) | (18)
Total Discounted Operating Lease Liabilities | $ 96 | $ 108

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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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