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Related-Party Transactions (Tables) | 6 Months Ended
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Jun. 30, 2020
Public Service Electric and Gas Company [Member] |
Related Party Transaction [Line Items] |
Schedule Of Related Party Transactions, Revenue | PSE&G 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 | 2020 |  | 2019 |  | 2020 |  | 2019 |
|  | Millions |
| Billings from Affiliates: |  |  |  |  |  |  |  |
| Net Billings from PSEG Power (A) | $ | 227 |  |  | $ | 246 |  |  | $ | 717 |  |  | $ | 879 |  |
| Administrative Billings from Services (B) | 78 |  |  | 80 |  |  | 156 |  |  | 155 |  |
| Total Billings from Affiliates | $ | 305 |  |  | $ | 326 |  |  | $ | 873 |  |  | $ | 1,034 |  |
Schedule Of Related Party Transactions, Payables |
|  | As of |  | As of |
| Related-Party Transactions | June 30, 2020 |  | December 31, 2019 |
|  | Millions |
| Receivable from PSEG (C) | $ | — |  |  | $ | 1 |  |
| Payable to PSEG Power (A) | $ | 215 |  |  | $ | 307 |  |
| Payable to Services (B) | 71 |  |  | 83 |  |
| Payable to PSEG (C) | 87 |  |  | — |  |
| Accounts Payable—Affiliated Companies | $ | 373 |  |  | $ | 390 |  |
| Noncurrent Payable to PSEG Power (A) | $ | 11 |  |  | $ | — |  |
| Working Capital Advances to Services (D) | $ | 33 |  |  | $ | 33 |  |
| Long-Term Accrued Taxes Payable | $ | 19 |  |  | $ | 115 |  |
PSEG Power [Member] |
Related Party Transaction [Line Items] |
Schedule Of Related Party Transactions, Revenue | The financial statements for PSEG Power include transactions with related parties presented as follows:
|  | Three Months Ended |  | Six Months Ended |
|  | June 30, |  | June 30, |
| Related-Party Transactions | 2020 |  | 2019 |  | 2020 |  | 2019 |
|  | Millions |
| Billings to Affiliates: |  |  |  |  |  |  |  |
| Net Billings to PSE&G (A) | $ | 227 |  |  | $ | 246 |  |  | $ | 717 |  |  | $ | 879 |  |
| Billings from Affiliates: |  |  |  |  |  |  |  |
| Administrative Billings from Services (B) | $ | 42 |  |  | $ | 46 |  |  | $ | 87 |  |  | $ | 91 |  |
Schedule Of Related Party Transactions, Receivables |
|  | As of |  | As of |
| Related-Party Transactions | June 30, 2020 |  | December 31, 2019 |
|  | Millions |
| Receivable from PSE&G (A) | $ | 215 |  |  | $ | 307 |  |
| Receivable from PSEG (C) | 66 |  |  | 101 |  |
| Accounts Receivable—Affiliated Companies | $ | 281 |  |  | $ | 408 |  |
| Payable to Services (B) | $ | 20 |  |  | $ | 5 |  |
| Accounts Payable—Affiliated Companies | $ | 20 |  |  | $ | 5 |  |
| Short-Term Loan to (from) Affiliate (E) | $ | 104 |  |  | $ | 149 |  |
| Noncurrent Receivable from PSE&G (A) | $ | 11 |  |  | $ | — |  |
| Working Capital Advances to Services (D) | $ | 17 |  |  | $ | 17 |  |
| Long-Term Accrued Taxes Payable | $ | 53 |  |  | $ | 115 |  |

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