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Selected Quarterly Data (Tables) | 12 Months Ended
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Dec. 31, 2015
Schedule of Quarterly Data [Line Items] |
Schedule Of Selected Quarterly Data | The information shown in the following tables, in the opinion of PSEG, PSE&G and Power includes all adjustments, consisting only of normal recurring accruals, necessary to fairly present such amounts.
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| PSEG Consolidated: |  | Millions, except per share data |
| Operating Revenues |  | $ | 3,135 |  |  | $ | 3,223 |  |  | $ | 2,314 |  |  | $ | 2,249 |  |  | $ | 2,688 |  |  | $ | 2,641 |  |  | $ | 2,278 |  |  | $ | 2,773 |  |
| Operating Income |  | $ | 1,048 |  |  | $ | 705 |  |  | $ | 568 |  |  | $ | 365 |  |  | $ | 814 |  |  | $ | 746 |  |  | $ | 532 |  |  | $ | 807 |  |
| Net Income (Loss) |  | $ | 586 |  |  | $ | 386 |  |  | $ | 345 |  |  | $ | 212 |  |  | $ | 439 |  |  | $ | 444 |  |  | $ | 309 |  |  | $ | 476 |  |
| Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 1.16 |  |  | $ | 0.76 |  |  | $ | 0.68 |  |  | $ | 0.42 |  |  | $ | 0.87 |  |  | $ | 0.88 |  |  | $ | 0.61 |  |  | $ | 0.94 |  |
| Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 1.15 |  |  | $ | 0.76 |  |  | $ | 0.68 |  |  | $ | 0.42 |  |  | $ | 0.87 |  |  | $ | 0.87 |  |  | $ | 0.60 |  |  | $ | 0.94 |  |
| Weighted Average Common Shares Outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic |  | 506 |  |  | 506 |  |  | 506 |  |  | 506 |  |  | 505 |  |  | 506 |  |  | 505 |  |  | 506 |  |
| Diluted |  | 508 |  |  | 508 |  |  | 508 |  |  | 508 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 508 |  |
PSE&G [Member] |
Schedule of Quarterly Data [Line Items] |
Schedule Of Selected Quarterly Data |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| PSE&G: |  | Millions |
| Operating Revenues |  | $ | 2,002 |  |  | $ | 2,145 |  |  | $ | 1,466 |  |  | $ | 1,435 |  |  | $ | 1,766 |  |  | $ | 1,655 |  |  | $ | 1,402 |  |  | $ | 1,531 |  |
| Operating Income |  | $ | 451 |  |  | $ | 411 |  |  | $ | 320 |  |  | $ | 291 |  |  | $ | 404 |  |  | $ | 383 |  |  | $ | 287 |  |  | $ | 308 |  |
| Net Income (Loss) |  | $ | 242 |  |  | $ | 214 |  |  | $ | 167 |  |  | $ | 151 |  |  | $ | 222 |  |  | $ | 200 |  |  | $ | 156 |  |  | $ | 160 |  |
Power [Member] |
Schedule of Quarterly Data [Line Items] |
Schedule Of Selected Quarterly Data |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |  | 2015 |  | 2014 |
| Power: |  | Millions |
| Operating Revenues |  | $ | 1,725 |  |  | $ | 1,700 |  |  | $ | 1,025 |  |  | $ | 986 |  |  | $ | 1,096 |  |  | $ | 1,138 |  |  | $ | 1,082 |  |  | $ | 1,610 |  |
| Operating Income |  | $ | 584 |  |  | $ | 282 |  |  | $ | 228 |  |  | $ | 67 |  |  | $ | 391 |  |  | $ | 353 |  |  | $ | 227 |  |  | $ | 507 |  |
| Net Income (Loss) |  | $ | 335 |  |  | $ | 164 |  |  | $ | 166 |  |  | $ | 54 |  |  | $ | 206 |  |  | $ | 222 |  |  | $ | 149 |  |  | $ | 320 |  |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=51825399&loc=d3e1280-108306 + Details
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