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Related-Party Transactions (Tables) - Public Service Electric and Gas Company [Member] | 6 Months Ended
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Jun. 30, 2025
Related Party Transaction [Line Items] |
Schedule of Related Party Transactions, Revenue | The financial statements for PSE&G include transactions with related parties presented as follows:
|  |  | Three Months Ended |  |  | Six Months Ended |  |
|  |  | June 30, |  |  | June 30, |  |
| Related-Party Transactions |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |  |
|  |  | Millions |  |
| Billings from Affiliates: |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Billings from PSEG Power (A) |  | $ | 144 |  |  | $ | 123 |  |  | $ | 676 |  |  | $ | 567 |  |
| Administrative Billings from Services (B) |  |  | 126 |  |  |  | 136 |  |  |  | 243 |  |  |  | 253 |  |
| Total Billings from Affiliates |  | $ | 270 |  |  | $ | 259 |  |  | $ | 919 |  |  | $ | 820 |  |
Schedule of Related Party Transactions, Payables |
|  |  | As of |  |  | As of |  |
| Related-Party Transactions |  | June 30, 2025 |  |  | December 31, 2024 |  |
|  |  | Millions |  |
| Net Payable to PSEG Power (A) |  | $ | 137 |  |  | $ | 209 |  |
| Net Payable to Services (B) |  |  | 127 |  |  |  | 116 |  |
| Net Payable to PSEG (C) |  |  | 116 |  |  |  | 37 |  |
| Accounts Payable—Affiliated Companies |  | $ | 380 |  |  | $ | 362 |  |
| Working Capital Advances to Services (D) |  | $ | 33 |  |  | $ | 33 |  |
| Long-Term Accrued Taxes Payable (Receivable) |  | $ | 4 |  |  | $ | (2 | ) |
(A) PSE&G has entered into a requirements contract with PSEG Power under which PSEG Power provides the gas supply services needed to meet PSE&G’s BGSS and other contractual requirements. In addition, PSEG Power sold ZECs to PSE&G from its nuclear units under the ZEC program as approved by the BPU. The rates in the BGSS contract and for the ZEC sales were prescribed by the BPU. BGSS sales were billed and settled on a monthly basis. ZEC sales were billed on a monthly basis and settled annually following completion of each energy year. The ZEC program ended effective June 1, 2025, with the final ZEC payment from PSE&G to PSEG Power to be settled in August 2025. In addition, PSEG Power and PSE&G provide certain technical services for each other generally at cost in compliance with FERC and BPU affiliate rules. (B) Services provides and bills administrative services to PSE&G at cost. In addition, PSE&G has other payables to Services, including amounts related to certain common costs, which Services pays on behalf of PSE&G. (C) PSEG pays net wages and payroll taxes and receives reimbursement from its affiliated companies for their respective portions. PSEG and its subsidiaries file a consolidated federal income tax return and PSEG and PSE&G file state income tax returns, some of which are combined or unitary. Income taxes are allocated to PSEG’s subsidiaries in accordance with a tax allocation agreement whereby each PSEG subsidiary’s current and deferred tax expense is computed on a stand-alone basis. Each subsidiary is allocated an amount of tax similar to that which would be paid if it filed a separate income tax return, except for certain tax attributes and state apportionment results. If the result is a net tax liability, such amount shall be paid to PSEG. If there are NOLs and/or tax credits, the subsidiary shall receive payment for the tax savings from PSEG to the extent that PSEG is able to utilize those benefits. (D) PSE&G has advanced working capital to Services. The amount is included in Other Noncurrent Assets on PSE&G’s Consolidated Balance Sheets.

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