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Related-Party Transactions (Tables) | 9 Months Ended
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Sep. 30, 2015
PSE And G [Member] |
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 |  | Nine Months Ended |
|  | September 30, |  | September 30, |
| Related-Party Transactions | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  | Millions |
| Billings from Affiliates: |  |  |  |  |  |  |  |
| Billings from Power primarily through BGS and BGSS (A) | $ | 294 |  |  | $ | 280 |  |  | $ | 1,287 |  |  | $ | 1,308 |  |
| Administrative Billings from Services (B) | 66 |  |  | 59 |  |  | 197 |  |  | 183 |  |
| Total Billings from Affiliates | $ | 360 |  |  | $ | 339 |  |  | $ | 1,484 |  |  | $ | 1,491 |  |
Schedule Of Related Party Transactions, Payables |
|  | As of |  | As of |
| Related-Party Transactions | September 30, 2015 |  | December 31, 2014 |
|  | Millions |
| Receivable from PSEG (C) | $ | 7 |  |  | $ | 274 |  |
| Payable to Power (A) | $ | 158 |  |  | $ | 313 |  |
| Payable to Services (B) | 50 |  |  | 66 |  |
| Accounts Payable—Affiliated Companies | $ | 208 |  |  | $ | 379 |  |
| Working Capital Advances to Services (D) | $ | 33 |  |  | $ | 33 |  |
| Long-Term Accrued Taxes Payable | $ | 165 |  |  | $ | 116 |  |
Power [Member] |
Related Party Transaction [Line Items] |
Schedule Of Related Party Transactions, Revenue | The financial statements for Power include transactions with related parties presented as follows:
|  | Three Months Ended |  | Nine Months Ended |
|  | September 30, |  | September 30, |
| Related-Party Transactions | 2015 |  | 2014 |  | 2015 |  | 2014 |
|  | Millions |
| Billings to Affiliates: |  |  |  |  |  |  |  |
| Billings to PSE&G primarily through BGS and BGSS (A) | $ | 294 |  |  | $ | 280 |  |  | $ | 1,287 |  |  | $ | 1,308 |  |
| Billings from Affiliates: |  |  |  |  |  |  |  |
| Administrative Billings from Services (B) | $ | 44 |  |  | $ | 41 |  |  | $ | 135 |  |  | $ | 129 |  |
Schedule Of Related Party Transactions, Receivables |
|  | As of |  | As of |
| Related-Party Transactions | September 30, 2015 |  | December 31, 2014 |
|  | Millions |
| Receivables from PSE&G (A) | $ | 158 |  |  | $ | 313 |  |
| Payable to Services (B) | $ | 26 |  |  | $ | 23 |  |
| Payable to PSEG (C) | 91 |  |  | 95 |  |
| Accounts Payable—Affiliated Companies | $ | 117 |  |  | $ | 118 |  |
| Short-Term Loan Due (to) from Affiliate (E) | $ | 865 |  |  | $ | 584 |  |
| Working Capital Advances to Services (D) | $ | 17 |  |  | $ | 17 |  |
| Long-Term Accrued Taxes Payable | $ | 54 |  |  | $ | 41 |  |

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