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Selected Quarterly Data | 12 Months Ended
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Dec. 31, 2017
Schedule of Quarterly Data [Line Items] |
Selected Quarterly Data | Selected Quarterly Data (Unaudited) 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, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSEG Consolidated: |  | Millions, except per share data |
| Operating Revenues |  | $ | 2,592 |  |  | $ | 2,616 |  |  | $ | 2,133 |  |  | $ | 1,905 |  |  | $ | 2,263 |  |  | $ | 2,450 |  |  | $ | 2,096 |  |  | $ | 2,090 |  |
| Operating Income (Loss) |  | $ | 178 |  |  | $ | 827 |  |  | $ | 196 |  |  | $ | 347 |  |  | $ | 693 |  |  | $ | 577 |  |  | $ | 362 |  |  | $ | (175 | ) |
| Net Income (Loss) |  | $ | 114 |  |  | $ | 471 |  |  | $ | 109 |  |  | $ | 187 |  |  | $ | 395 |  |  | $ | 327 |  |  | $ | 956 |  |  | $ | (98 | ) |
| Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.23 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.65 |  |  | $ | 1.89 |  |  | $ | (0.19 | ) |
| Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.22 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.64 |  |  | $ | 1.88 |  |  | $ | (0.19 | ) |
| Weighted Average Common Shares Outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |
| Diluted |  | 508 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 508 |  |  | 508 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSE&G: |  | Millions |
| Operating Revenues |  | $ | 1,812 |  |  | $ | 1,712 |  |  | $ | 1,368 |  |  | $ | 1,350 |  |  | $ | 1,509 |  |  | $ | 1,684 |  |  | $ | 1,545 |  |  | $ | 1,475 |  |
| Operating Income |  | $ | 521 |  |  | $ | 462 |  |  | $ | 379 |  |  | $ | 333 |  |  | $ | 459 |  |  | $ | 450 |  |  | $ | 393 |  |  | $ | 369 |  |
| Net Income |  | $ | 299 |  |  | $ | 262 |  |  | $ | 208 |  |  | $ | 179 |  |  | $ | 246 |  |  | $ | 255 |  |  | $ | 220 |  |  | $ | 193 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| Power: |  | Millions |
| Operating Revenues |  | $ | 1,284 |  |  | $ | 1,313 |  |  | $ | 929 |  |  | $ | 714 |  |  | $ | 873 |  |  | $ | 1,075 |  |  | $ | 844 |  |  | $ | 921 |  |
| Operating Income (Loss) |  | $ | (303 | ) |  | $ | 343 |  |  | $ | (187 | ) |  | $ | (12 | ) |  | $ | 213 |  |  | $ | 238 |  |  | $ | (82 | ) |  | $ | (556 | ) |
| Net Income (Loss) |  | $ | (170 | ) |  | $ | 192 |  |  | $ | (97 | ) |  | $ | (11 | ) |  | $ | 136 |  |  | $ | 139 |  |  | $ | 610 |  |  | $ | (302 | ) |
(A) | The increases in Operating Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 were primarily due to higher costs in 2016 related to closing the coal/gas Hudson and Mercer units, which were fully depreciated as of June 1, 2017. The increases in Net Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 also includes the impact of the remeasurement of deferred tax balances resulting from the enactment of new tax legislation in December 2017. See Note 20. Income Taxes for additional information.
PSE&G [Member] |
Schedule of Quarterly Data [Line Items] |
Selected Quarterly Data | Selected Quarterly Data (Unaudited) 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, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSEG Consolidated: |  | Millions, except per share data |
| Operating Revenues |  | $ | 2,592 |  |  | $ | 2,616 |  |  | $ | 2,133 |  |  | $ | 1,905 |  |  | $ | 2,263 |  |  | $ | 2,450 |  |  | $ | 2,096 |  |  | $ | 2,090 |  |
| Operating Income (Loss) |  | $ | 178 |  |  | $ | 827 |  |  | $ | 196 |  |  | $ | 347 |  |  | $ | 693 |  |  | $ | 577 |  |  | $ | 362 |  |  | $ | (175 | ) |
| Net Income (Loss) |  | $ | 114 |  |  | $ | 471 |  |  | $ | 109 |  |  | $ | 187 |  |  | $ | 395 |  |  | $ | 327 |  |  | $ | 956 |  |  | $ | (98 | ) |
| Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.23 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.65 |  |  | $ | 1.89 |  |  | $ | (0.19 | ) |
| Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.22 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.64 |  |  | $ | 1.88 |  |  | $ | (0.19 | ) |
| Weighted Average Common Shares Outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |
| Diluted |  | 508 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 508 |  |  | 508 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSE&G: |  | Millions |
| Operating Revenues |  | $ | 1,812 |  |  | $ | 1,712 |  |  | $ | 1,368 |  |  | $ | 1,350 |  |  | $ | 1,509 |  |  | $ | 1,684 |  |  | $ | 1,545 |  |  | $ | 1,475 |  |
| Operating Income |  | $ | 521 |  |  | $ | 462 |  |  | $ | 379 |  |  | $ | 333 |  |  | $ | 459 |  |  | $ | 450 |  |  | $ | 393 |  |  | $ | 369 |  |
| Net Income |  | $ | 299 |  |  | $ | 262 |  |  | $ | 208 |  |  | $ | 179 |  |  | $ | 246 |  |  | $ | 255 |  |  | $ | 220 |  |  | $ | 193 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| Power: |  | Millions |
| Operating Revenues |  | $ | 1,284 |  |  | $ | 1,313 |  |  | $ | 929 |  |  | $ | 714 |  |  | $ | 873 |  |  | $ | 1,075 |  |  | $ | 844 |  |  | $ | 921 |  |
| Operating Income (Loss) |  | $ | (303 | ) |  | $ | 343 |  |  | $ | (187 | ) |  | $ | (12 | ) |  | $ | 213 |  |  | $ | 238 |  |  | $ | (82 | ) |  | $ | (556 | ) |
| Net Income (Loss) |  | $ | (170 | ) |  | $ | 192 |  |  | $ | (97 | ) |  | $ | (11 | ) |  | $ | 136 |  |  | $ | 139 |  |  | $ | 610 |  |  | $ | (302 | ) |
(A) | The increases in Operating Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 were primarily due to higher costs in 2016 related to closing the coal/gas Hudson and Mercer units, which were fully depreciated as of June 1, 2017. The increases in Net Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 also includes the impact of the remeasurement of deferred tax balances resulting from the enactment of new tax legislation in December 2017. See Note 20. Income Taxes for additional information.
Power [Member] |
Schedule of Quarterly Data [Line Items] |
Selected Quarterly Data | Selected Quarterly Data (Unaudited) 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, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSEG Consolidated: |  | Millions, except per share data |
| Operating Revenues |  | $ | 2,592 |  |  | $ | 2,616 |  |  | $ | 2,133 |  |  | $ | 1,905 |  |  | $ | 2,263 |  |  | $ | 2,450 |  |  | $ | 2,096 |  |  | $ | 2,090 |  |
| Operating Income (Loss) |  | $ | 178 |  |  | $ | 827 |  |  | $ | 196 |  |  | $ | 347 |  |  | $ | 693 |  |  | $ | 577 |  |  | $ | 362 |  |  | $ | (175 | ) |
| Net Income (Loss) |  | $ | 114 |  |  | $ | 471 |  |  | $ | 109 |  |  | $ | 187 |  |  | $ | 395 |  |  | $ | 327 |  |  | $ | 956 |  |  | $ | (98 | ) |
| Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.23 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.65 |  |  | $ | 1.89 |  |  | $ | (0.19 | ) |
| Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net Income (Loss) |  | $ | 0.22 |  |  | $ | 0.93 |  |  | $ | 0.22 |  |  | $ | 0.37 |  |  | $ | 0.78 |  |  | $ | 0.64 |  |  | $ | 1.88 |  |  | $ | (0.19 | ) |
| Weighted Average Common Shares Outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Basic |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |  | 505 |  |
| Diluted |  | 508 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 507 |  |  | 508 |  |  | 508 |  |  | 508 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| PSE&G: |  | Millions |
| Operating Revenues |  | $ | 1,812 |  |  | $ | 1,712 |  |  | $ | 1,368 |  |  | $ | 1,350 |  |  | $ | 1,509 |  |  | $ | 1,684 |  |  | $ | 1,545 |  |  | $ | 1,475 |  |
| Operating Income |  | $ | 521 |  |  | $ | 462 |  |  | $ | 379 |  |  | $ | 333 |  |  | $ | 459 |  |  | $ | 450 |  |  | $ | 393 |  |  | $ | 369 |  |
| Net Income |  | $ | 299 |  |  | $ | 262 |  |  | $ | 208 |  |  | $ | 179 |  |  | $ | 246 |  |  | $ | 255 |  |  | $ | 220 |  |  | $ | 193 |  |
|  |  | Quarter Ended |
|  |  | March 31, |  | June 30, |  | September 30, |  | December 31, (A) |
|  |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
| Power: |  | Millions |
| Operating Revenues |  | $ | 1,284 |  |  | $ | 1,313 |  |  | $ | 929 |  |  | $ | 714 |  |  | $ | 873 |  |  | $ | 1,075 |  |  | $ | 844 |  |  | $ | 921 |  |
| Operating Income (Loss) |  | $ | (303 | ) |  | $ | 343 |  |  | $ | (187 | ) |  | $ | (12 | ) |  | $ | 213 |  |  | $ | 238 |  |  | $ | (82 | ) |  | $ | (556 | ) |
| Net Income (Loss) |  | $ | (170 | ) |  | $ | 192 |  |  | $ | (97 | ) |  | $ | (11 | ) |  | $ | 136 |  |  | $ | 139 |  |  | $ | 610 |  |  | $ | (302 | ) |
(A) | The increases in Operating Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 were primarily due to higher costs in 2016 related to closing the coal/gas Hudson and Mercer units, which were fully depreciated as of June 1, 2017. The increases in Net Income at PSEG consolidated and Power in the fourth quarter 2017 as compared to the same quarter in 2016 also includes the impact of the remeasurement of deferred tax balances resulting from the enactment of new tax legislation in December 2017. See Note 20. Income Taxes for additional information.

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