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Accumulated Other Comprehensive Income (Loss), Net of Tax | 9 Months Ended
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Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Accumulated Other Comprehensive Income (Loss), Net of Tax | Accumulated Other Comprehensive Income (Loss), Net of Tax
| PSEG |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2015 |  | $ | 1 |  |  | $ | (395 | ) |  | $ | 117 |  |  | $ | (277 | ) |
| Other Comprehensive Income before Reclassifications |  | — |  |  | — |  |  | (46 | ) |  | (46 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | — |  |  | 9 |  |  | 15 |  |  | 24 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | — |  |  | 9 |  |  | (31 | ) |  | (22 | ) |
| Balance as of September 30, 2015 |  | $ | 1 |  |  | $ | (386 | ) |  | $ | 86 |  |  | $ | (299 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2014 |  | $ | 1 |  |  | $ | (232 | ) |  | $ | 158 |  |  | $ | (73 | ) |
| Other Comprehensive Income before Reclassifications |  | 2 |  |  | — |  |  | (15 | ) |  | (13 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (1 | ) |  | 3 |  |  | (15 | ) |  | (13 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 1 |  |  | 3 |  |  | (30 | ) |  | (26 | ) |
| Balance as of September 30, 2014 |  | $ | 2 |  |  | $ | (229 | ) |  | $ | 128 |  |  | $ | (99 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2014 |  | $ | 10 |  |  | $ | (411 | ) |  | $ | 118 |  |  | $ | (283 | ) |
| Other Comprehensive Income before Reclassifications |  | 1 |  |  | — |  |  | (44 | ) |  | (43 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (10 | ) |  | 25 |  |  | 12 |  |  | 27 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | (9 | ) |  | 25 |  |  | (32 | ) |  | (16 | ) |
| Balance as of September 30, 2015 |  | $ | 1 |  |  | $ | (386 | ) |  | $ | 86 |  |  | $ | (299 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2013 |  | $ | (2 | ) |  | $ | (238 | ) |  | $ | 145 |  |  | $ | (95 | ) |
| Other Comprehensive Income before Reclassifications |  | (2 | ) |  | — |  |  | 19 |  |  | 17 |  |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | 6 |  |  | 9 |  |  | (36 | ) |  | (21 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 4 |  |  | 9 |  |  | (17 | ) |  | (4 | ) |
| Balance as of September 30, 2014 |  | $ | 2 |  |  | $ | (229 | ) |  | $ | 128 |  |  | $ | (99 | ) |
| Power |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2015 |  | $ | 2 |  |  | $ | (337 | ) |  | $ | 112 |  |  | $ | (223 | ) |
| Other Comprehensive Income before Reclassifications |  | — |  |  | — |  |  | (43 | ) |  | (43 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | — |  |  | 7 |  |  | 14 |  |  | 21 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | — |  |  | 7 |  |  | (29 | ) |  | (22 | ) |
| Balance as of September 30, 2015 |  | $ | 2 |  |  | $ | (330 | ) |  | $ | 83 |  |  | $ | (245 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2014 |  | $ | 2 |  |  | $ | (199 | ) |  | $ | 153 |  |  | $ | (44 | ) |
| Other Comprehensive Income before Reclassifications |  | 2 |  |  | — |  |  | (14 | ) |  | (12 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (1 | ) |  | 2 |  |  | (16 | ) |  | (15 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 1 |  |  | 2 |  |  | (30 | ) |  | (27 | ) |
| Balance as of September 30, 2014 |  | $ | 3 |  |  | $ | (197 | ) |  | $ | 123 |  |  | $ | (71 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2014 |  | $ | 11 |  |  | $ | (351 | ) |  | $ | 112 |  |  | $ | (228 | ) |
| Other Comprehensive Income before Reclassifications |  | 1 |  |  | — |  |  | (41 | ) |  | (40 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (10 | ) |  | 21 |  |  | 12 |  |  | 23 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | (9 | ) |  | 21 |  |  | (29 | ) |  | (17 | ) |
| Balance as of September 30, 2015 |  | $ | 2 |  |  | $ | (330 | ) |  | $ | 83 |  |  | $ | (245 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2013 |  | $ | (1 | ) |  | $ | (204 | ) |  | $ | 142 |  |  | $ | (63 | ) |
| Other Comprehensive Income before Reclassifications |  | (2 | ) |  | — |  |  | 17 |  |  | 15 |  |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | 6 |  |  | 7 |  |  | (36 | ) |  | (23 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 4 |  |  | 7 |  |  | (19 | ) |  | (8 | ) |
| Balance as of September 30, 2014 |  | $ | 3 |  |  | $ | (197 | ) |  | $ | 123 |  |  | $ | (71 | ) |
| PSEG |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2015 |  | September 30, 2015 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 17 |  |  | $ | (7 | ) |  | $ | 10 |  |
| Total Cash Flow Hedges |  |  |  | — |  |  | — |  |  | — |  |  | 17 |  |  | (7 | ) |  | 10 |  |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 9 |  |  | (3 | ) |  | 6 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (17 | ) |  | 6 |  |  | (11 | ) |  | (51 | ) |  | 20 |  |  | (31 | ) |
| Total Pension and OPEB Plans |  | (14 | ) |  | 5 |  |  | (9 | ) |  | (42 | ) |  | 17 |  |  | (25 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 14 |  |  | (7 | ) |  | 7 |  |  | 49 |  |  | (25 | ) |  | 24 |  |
| Realized Losses |  | Other Deductions |  | (12 | ) |  | 5 |  |  | (7 | ) |  | (25 | ) |  | 12 |  |  | (13 | ) |
| Other-Than-Temporary Impairments (OTTI) |  | OTTI |  | (30 | ) |  | 15 |  |  | (15 | ) |  | (45 | ) |  | 22 |  |  | (23 | ) |
| Total Available-for-Sale Securities |  | (28 | ) |  | 13 |  |  | (15 | ) |  | (21 | ) |  | 9 |  |  | (12 | ) |
| Total |  |  |  | $ | (42 | ) |  | $ | 18 |  |  | $ | (24 | ) |  | $ | (46 | ) |  | $ | 19 |  |  | $ | (27 | ) |
| PSEG |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2014 |  | September 30, 2014 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | (11 | ) |  | $ | 5 |  |  | $ | (6 | ) |
| Total Cash Flow Hedges |  |  |  | 1 |  |  | — |  |  | 1 |  |  | (11 | ) |  | 5 |  |  | (6 | ) |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 8 |  |  | (3 | ) |  | 5 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (8 | ) |  | 3 |  |  | (5 | ) |  | (22 | ) |  | 8 |  |  | (14 | ) |
| Total Pension and OPEB Plans |  | (5 | ) |  | 2 |  |  | (3 | ) |  | (14 | ) |  | 5 |  |  | (9 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 47 |  |  | (24 | ) |  | 23 |  |  | 105 |  |  | (54 | ) |  | 51 |  |
| Realized Losses |  | Other Deductions |  | (5 | ) |  | 2 |  |  | (3 | ) |  | (15 | ) |  | 7 |  |  | (8 | ) |
| OTTI |  | OTTI |  | (10 | ) |  | 5 |  |  | (5 | ) |  | (14 | ) |  | 7 |  |  | (7 | ) |
| Total Available-for-Sale Securities |  | 32 |  |  | (17 | ) |  | 15 |  |  | 76 |  |  | (40 | ) |  | 36 |  |
| Total |  |  |  | $ | 28 |  |  | $ | (15 | ) |  | $ | 13 |  |  | $ | 51 |  |  | $ | (30 | ) |  | $ | 21 |  |
| Power |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2015 |  | September 30, 2015 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 17 |  |  | $ | (7 | ) |  | $ | 10 |  |
| Total Cash Flow Hedges |  |  |  | — |  |  | — |  |  | — |  |  | 17 |  |  | (7 | ) |  | 10 |  |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 9 |  |  | (3 | ) |  | 6 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (15 | ) |  | 6 |  |  | (9 | ) |  | (45 | ) |  | 18 |  |  | (27 | ) |
| Total Pension and OPEB Plans |  | (12 | ) |  | 5 |  |  | (7 | ) |  | (36 | ) |  | 15 |  |  | (21 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 14 |  |  | (7 | ) |  | 7 |  |  | 47 |  |  | (24 | ) |  | 23 |  |
| Realized Losses |  | Other Deductions |  | (11 | ) |  | 5 |  |  | (6 | ) |  | (24 | ) |  | 12 |  |  | (12 | ) |
| OTTI |  | OTTI |  | (30 | ) |  | 15 |  |  | (15 | ) |  | (45 | ) |  | 22 |  |  | (23 | ) |
| Total Available-for-Sale Securities |  | (27 | ) |  | 13 |  |  | (14 | ) |  | (22 | ) |  | 10 |  |  | (12 | ) |
| Total |  |  |  | $ | (39 | ) |  | $ | 18 |  |  | $ | (21 | ) |  | $ | (41 | ) |  | $ | 18 |  |  | $ | (23 | ) |
| Power |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2014 |  | September 30, 2014 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | (11 | ) |  | $ | 5 |  |  | $ | (6 | ) |
| Total Cash Flow Hedges |  |  |  | 1 |  |  | — |  |  | 1 |  |  | (11 | ) |  | 5 |  |  | (6 | ) |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 7 |  |  | (3 | ) |  | 4 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (6 | ) |  | 2 |  |  | (4 | ) |  | (18 | ) |  | 7 |  |  | (11 | ) |
| Total Pension and OPEB Plans |  | (3 | ) |  | 1 |  |  | (2 | ) |  | (11 | ) |  | 4 |  |  | (7 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 45 |  |  | (23 | ) |  | 22 |  |  | 101 |  |  | (52 | ) |  | 49 |  |
| Realized Losses |  | Other Deductions |  | (2 | ) |  | 1 |  |  | (1 | ) |  | (12 | ) |  | 6 |  |  | (6 | ) |
| OTTI |  | OTTI |  | (10 | ) |  | 5 |  |  | (5 | ) |  | (14 | ) |  | 7 |  |  | (7 | ) |
| Total Available-for-Sale Securities |  | 33 |  |  | (17 | ) |  | 16 |  |  | 75 |  |  | (39 | ) |  | 36 |  |
| Total |  |  |  | $ | 31 |  |  | $ | (16 | ) |  | $ | 15 |  |  | $ | 53 |  |  | $ | (30 | ) |  | $ | 23 |  |
Power [Member] |
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Accumulated Other Comprehensive Income (Loss), Net of Tax | Accumulated Other Comprehensive Income (Loss), Net of Tax
| PSEG |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2015 |  | $ | 1 |  |  | $ | (395 | ) |  | $ | 117 |  |  | $ | (277 | ) |
| Other Comprehensive Income before Reclassifications |  | — |  |  | — |  |  | (46 | ) |  | (46 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | — |  |  | 9 |  |  | 15 |  |  | 24 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | — |  |  | 9 |  |  | (31 | ) |  | (22 | ) |
| Balance as of September 30, 2015 |  | $ | 1 |  |  | $ | (386 | ) |  | $ | 86 |  |  | $ | (299 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2014 |  | $ | 1 |  |  | $ | (232 | ) |  | $ | 158 |  |  | $ | (73 | ) |
| Other Comprehensive Income before Reclassifications |  | 2 |  |  | — |  |  | (15 | ) |  | (13 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (1 | ) |  | 3 |  |  | (15 | ) |  | (13 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 1 |  |  | 3 |  |  | (30 | ) |  | (26 | ) |
| Balance as of September 30, 2014 |  | $ | 2 |  |  | $ | (229 | ) |  | $ | 128 |  |  | $ | (99 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2014 |  | $ | 10 |  |  | $ | (411 | ) |  | $ | 118 |  |  | $ | (283 | ) |
| Other Comprehensive Income before Reclassifications |  | 1 |  |  | — |  |  | (44 | ) |  | (43 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (10 | ) |  | 25 |  |  | 12 |  |  | 27 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | (9 | ) |  | 25 |  |  | (32 | ) |  | (16 | ) |
| Balance as of September 30, 2015 |  | $ | 1 |  |  | $ | (386 | ) |  | $ | 86 |  |  | $ | (299 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2013 |  | $ | (2 | ) |  | $ | (238 | ) |  | $ | 145 |  |  | $ | (95 | ) |
| Other Comprehensive Income before Reclassifications |  | (2 | ) |  | — |  |  | 19 |  |  | 17 |  |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | 6 |  |  | 9 |  |  | (36 | ) |  | (21 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 4 |  |  | 9 |  |  | (17 | ) |  | (4 | ) |
| Balance as of September 30, 2014 |  | $ | 2 |  |  | $ | (229 | ) |  | $ | 128 |  |  | $ | (99 | ) |
| Power |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2015 |  | $ | 2 |  |  | $ | (337 | ) |  | $ | 112 |  |  | $ | (223 | ) |
| Other Comprehensive Income before Reclassifications |  | — |  |  | — |  |  | (43 | ) |  | (43 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | — |  |  | 7 |  |  | 14 |  |  | 21 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | — |  |  | 7 |  |  | (29 | ) |  | (22 | ) |
| Balance as of September 30, 2015 |  | $ | 2 |  |  | $ | (330 | ) |  | $ | 83 |  |  | $ | (245 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Three Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of June 30, 2014 |  | $ | 2 |  |  | $ | (199 | ) |  | $ | 153 |  |  | $ | (44 | ) |
| Other Comprehensive Income before Reclassifications |  | 2 |  |  | — |  |  | (14 | ) |  | (12 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (1 | ) |  | 2 |  |  | (16 | ) |  | (15 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 1 |  |  | 2 |  |  | (30 | ) |  | (27 | ) |
| Balance as of September 30, 2014 |  | $ | 3 |  |  | $ | (197 | ) |  | $ | 123 |  |  | $ | (71 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2015 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2014 |  | $ | 11 |  |  | $ | (351 | ) |  | $ | 112 |  |  | $ | (228 | ) |
| Other Comprehensive Income before Reclassifications |  | 1 |  |  | — |  |  | (41 | ) |  | (40 | ) |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | (10 | ) |  | 21 |  |  | 12 |  |  | 23 |  |
| Net Current Period Other Comprehensive Income (Loss) |  | (9 | ) |  | 21 |  |  | (29 | ) |  | (17 | ) |
| Balance as of September 30, 2015 |  | $ | 2 |  |  | $ | (330 | ) |  | $ | 83 |  |  | $ | (245 | ) |
|  |  | Other Comprehensive Income (Loss) |
|  |  | Nine Months Ended September 30, 2014 |
| Accumulated Other Comprehensive Income (Loss) |  | Cash Flow Hedges |  | Pension and OPEB Plans |  | Available-for-Sale Securities |  | Total |
|  |  | Millions |
| Balance as of December 31, 2013 |  | $ | (1 | ) |  | $ | (204 | ) |  | $ | 142 |  |  | $ | (63 | ) |
| Other Comprehensive Income before Reclassifications |  | (2 | ) |  | — |  |  | 17 |  |  | 15 |  |
| Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | 6 |  |  | 7 |  |  | (36 | ) |  | (23 | ) |
| Net Current Period Other Comprehensive Income (Loss) |  | 4 |  |  | 7 |  |  | (19 | ) |  | (8 | ) |
| Balance as of September 30, 2014 |  | $ | 3 |  |  | $ | (197 | ) |  | $ | 123 |  |  | $ | (71 | ) |
| PSEG |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2015 |  | September 30, 2015 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 17 |  |  | $ | (7 | ) |  | $ | 10 |  |
| Total Cash Flow Hedges |  |  |  | — |  |  | — |  |  | — |  |  | 17 |  |  | (7 | ) |  | 10 |  |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 9 |  |  | (3 | ) |  | 6 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (17 | ) |  | 6 |  |  | (11 | ) |  | (51 | ) |  | 20 |  |  | (31 | ) |
| Total Pension and OPEB Plans |  | (14 | ) |  | 5 |  |  | (9 | ) |  | (42 | ) |  | 17 |  |  | (25 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 14 |  |  | (7 | ) |  | 7 |  |  | 49 |  |  | (25 | ) |  | 24 |  |
| Realized Losses |  | Other Deductions |  | (12 | ) |  | 5 |  |  | (7 | ) |  | (25 | ) |  | 12 |  |  | (13 | ) |
| Other-Than-Temporary Impairments (OTTI) |  | OTTI |  | (30 | ) |  | 15 |  |  | (15 | ) |  | (45 | ) |  | 22 |  |  | (23 | ) |
| Total Available-for-Sale Securities |  | (28 | ) |  | 13 |  |  | (15 | ) |  | (21 | ) |  | 9 |  |  | (12 | ) |
| Total |  |  |  | $ | (42 | ) |  | $ | 18 |  |  | $ | (24 | ) |  | $ | (46 | ) |  | $ | 19 |  |  | $ | (27 | ) |
| PSEG |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2014 |  | September 30, 2014 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | (11 | ) |  | $ | 5 |  |  | $ | (6 | ) |
| Total Cash Flow Hedges |  |  |  | 1 |  |  | — |  |  | 1 |  |  | (11 | ) |  | 5 |  |  | (6 | ) |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 8 |  |  | (3 | ) |  | 5 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (8 | ) |  | 3 |  |  | (5 | ) |  | (22 | ) |  | 8 |  |  | (14 | ) |
| Total Pension and OPEB Plans |  | (5 | ) |  | 2 |  |  | (3 | ) |  | (14 | ) |  | 5 |  |  | (9 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 47 |  |  | (24 | ) |  | 23 |  |  | 105 |  |  | (54 | ) |  | 51 |  |
| Realized Losses |  | Other Deductions |  | (5 | ) |  | 2 |  |  | (3 | ) |  | (15 | ) |  | 7 |  |  | (8 | ) |
| OTTI |  | OTTI |  | (10 | ) |  | 5 |  |  | (5 | ) |  | (14 | ) |  | 7 |  |  | (7 | ) |
| Total Available-for-Sale Securities |  | 32 |  |  | (17 | ) |  | 15 |  |  | 76 |  |  | (40 | ) |  | 36 |  |
| Total |  |  |  | $ | 28 |  |  | $ | (15 | ) |  | $ | 13 |  |  | $ | 51 |  |  | $ | (30 | ) |  | $ | 21 |  |
| Power |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2015 |  | September 30, 2015 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 17 |  |  | $ | (7 | ) |  | $ | 10 |  |
| Total Cash Flow Hedges |  |  |  | — |  |  | — |  |  | — |  |  | 17 |  |  | (7 | ) |  | 10 |  |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 9 |  |  | (3 | ) |  | 6 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (15 | ) |  | 6 |  |  | (9 | ) |  | (45 | ) |  | 18 |  |  | (27 | ) |
| Total Pension and OPEB Plans |  | (12 | ) |  | 5 |  |  | (7 | ) |  | (36 | ) |  | 15 |  |  | (21 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 14 |  |  | (7 | ) |  | 7 |  |  | 47 |  |  | (24 | ) |  | 23 |  |
| Realized Losses |  | Other Deductions |  | (11 | ) |  | 5 |  |  | (6 | ) |  | (24 | ) |  | 12 |  |  | (12 | ) |
| OTTI |  | OTTI |  | (30 | ) |  | 15 |  |  | (15 | ) |  | (45 | ) |  | 22 |  |  | (23 | ) |
| Total Available-for-Sale Securities |  | (27 | ) |  | 13 |  |  | (14 | ) |  | (22 | ) |  | 10 |  |  | (12 | ) |
| Total |  |  |  | $ | (39 | ) |  | $ | 18 |  |  | $ | (21 | ) |  | $ | (41 | ) |  | $ | 18 |  |  | $ | (23 | ) |
| Power |  |  |  | Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement |
|  |  |  |  | Three Months Ended |  | Nine Months Ended |
| Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | Location of Pre-Tax Amount In Statement of Operations |  | September 30, 2014 |  | September 30, 2014 |
|  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | After-Tax Amount |
|  |  |  |  | Millions |
| Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Energy-Related Contracts |  | Operating Revenues |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |  |  | $ | (11 | ) |  | $ | 5 |  |  | $ | (6 | ) |
| Total Cash Flow Hedges |  |  |  | 1 |  |  | — |  |  | 1 |  |  | (11 | ) |  | 5 |  |  | (6 | ) |
| Pension and OPEB Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Amortization of Prior Service (Cost) Credit |  | O&M Expense |  | 3 |  |  | (1 | ) |  | 2 |  |  | 7 |  |  | (3 | ) |  | 4 |  |
| Amortization of Actuarial Loss |  | O&M Expense |  | (6 | ) |  | 2 |  |  | (4 | ) |  | (18 | ) |  | 7 |  |  | (11 | ) |
| Total Pension and OPEB Plans |  | (3 | ) |  | 1 |  |  | (2 | ) |  | (11 | ) |  | 4 |  |  | (7 | ) |
| Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |
| Realized Gains |  | Other Income |  | 45 |  |  | (23 | ) |  | 22 |  |  | 101 |  |  | (52 | ) |  | 49 |  |
| Realized Losses |  | Other Deductions |  | (2 | ) |  | 1 |  |  | (1 | ) |  | (12 | ) |  | 6 |  |  | (6 | ) |
| OTTI |  | OTTI |  | (10 | ) |  | 5 |  |  | (5 | ) |  | (14 | ) |  | 7 |  |  | (7 | ) |
| Total Available-for-Sale Securities |  | 33 |  |  | (17 | ) |  | 16 |  |  | 75 |  |  | (39 | ) |  | 36 |  |
| Total |  |  |  | $ | 31 |  |  | $ | (16 | ) |  | $ | 15 |  |  | $ | 53 |  |  | $ | (30 | ) |  | $ | 23 |  |

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