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Guarantees of Debt | 3 Months Ended
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Mar. 31, 2018
Debt Instrument [Line Items] |
Guarantees of Debt | Guarantees of Debt Power’s Senior Notes are fully and unconditionally and jointly and severally guaranteed by its subsidiaries, PSEG Fossil LLC, PSEG Nuclear LLC and PSEG Energy Resources & Trade LLC. The following tables present condensed financial information for the guarantor subsidiaries, as well as Power’s non-guarantor subsidiaries, as of March 31, 2018 and December 31, 2017 and for the three months ended March 31, 2018 and 2017.
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Operating Revenues | $ | — |  |  | $ | 1,386 |  |  | $ | 51 |  |  | $ | (34 | ) |  | $ | 1,403 |  |
| Operating Expenses | — |  |  | 1,056 |  |  | 52 |  |  | (34 | ) |  | 1,074 |  |
| Operating Income (Loss) | — |  |  | 330 |  |  | (1 | ) |  | — |  |  | 329 |  |
| Equity Earnings (Losses) of Subsidiaries | 234 |  |  | (3 | ) |  | 2 |  |  | (231 | ) |  | 2 |  |
| Net Gains (Losses) on Trust Investments | — |  |  | (22 | ) |  | — |  |  | — |  |  | (22 | ) |
| Other Income (Deductions) | 35 |  |  | 33 |  |  | — |  |  | (57 | ) |  | 11 |  |
| Non-Operating Pension and OPEB Credits (Costs) | — |  |  | 4 |  |  | — |  |  | — |  |  | 4 |  |
| Interest Expense | (42 | ) |  | (17 | ) |  | (5 | ) |  | 57 |  |  | (7 | ) |
| Income Tax Benefit (Expense) | 7 |  |  | (92 | ) |  | 2 |  |  | — |  |  | (83 | ) |
| Net Income (Loss) | $ | 234 |  |  | $ | 233 |  |  | $ | (2 | ) |  | $ | (231 | ) |  | $ | 234 |  |
| Comprehensive Income (Loss) | $ | 229 |  |  | $ | 223 |  |  | $ | (2 | ) |  | $ | (221 | ) |  | $ | 229 |  |
| Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Net Cash Provided By (Used In) Operating Activities | $ | (5 | ) |  | $ | 525 |  |  | $ | (49 | ) |  | $ | 71 |  |  | $ | 542 |  |
| Net Cash Provided By (Used In) Investing Activities | $ | (215 | ) |  | $ | (625 | ) |  | $ | (82 | ) |  | $ | 605 |  |  | $ | (317 | ) |
| Net Cash Provided By (Used In) Financing Activities | $ | 220 |  |  | $ | 100 |  |  | $ | 111 |  |  | $ | (677 | ) |  | $ | (246 | ) |
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |
| Operating Revenues | $ | — |  |  | $ | 1,255 |  |  | $ | 52 |  |  | $ | (38 | ) |  | $ | 1,269 |  |
| Operating Expenses | 4 |  |  | 1,556 |  |  | 52 |  |  | (38 | ) |  | 1,574 |  |
| Operating Income (Loss) | (4 | ) |  | (301 | ) |  | — |  |  | — |  |  | (305 | ) |
| Equity Earnings (Losses) of Subsidiaries | (161 | ) |  | (1 | ) |  | 3 |  |  | 162 |  |  | 3 |  |
| Net Gains (Losses) on Trust Investments | 4 |  |  | 15 |  |  | — |  |  | — |  |  | 19 |  |
| Other Income (Deductions) | 20 |  |  | 19 |  |  | — |  |  | (28 | ) |  | 11 |  |
| Non-Operating Pension and OPEB Credits (Costs) | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |
| Interest Expense | (30 | ) |  | (9 | ) |  | (5 | ) |  | 28 |  |  | (16 | ) |
| Income Tax Benefit (Expense) | 1 |  |  | 111 |  |  | 4 |  |  | — |  |  | 116 |  |
| Net Income (Loss) | $ | (170 | ) |  | $ | (164 | ) |  | $ | 2 |  |  | $ | 162 |  |  | $ | (170 | ) |
| Comprehensive Income (Loss) | $ | (146 | ) |  | $ | (143 | ) |  | $ | 2 |  |  | $ | 141 |  |  | $ | (146 | ) |
| Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |
| Net Cash Provided By (Used In) Operating Activities | $ | 77 |  |  | $ | 377 |  |  | $ | 91 |  |  | $ | 35 |  |  | $ | 580 |  |
| Net Cash Provided By (Used In) Investing Activities | $ | 251 |  |  | $ | 20 |  |  | $ | (154 | ) |  | $ | (511 | ) |  | $ | (394 | ) |
| Net Cash Provided By (Used In) Financing Activities | $ | (328 | ) |  | $ | (395 | ) |  | $ | 68 |  |  | $ | 476 |  |  | $ | (179 | ) |
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| As of March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Current Assets | $ | 4,168 |  |  | $ | 1,392 |  |  | $ | 189 |  |  | $ | (4,631 | ) |  | $ | 1,118 |  |
| Property, Plant and Equipment, net | 55 |  |  | 5,094 |  |  | 3,540 |  |  | — |  |  | 8,689 |  |
| Investment in Subsidiaries | 5,089 |  |  | 1,115 |  |  | — |  |  | (6,204 | ) |  | — |  |
| Noncurrent Assets | 90 |  |  | 2,295 |  |  | 109 |  |  | (38 | ) |  | 2,456 |  |
| Total Assets | $ | 9,402 |  |  | $ | 9,896 |  |  | $ | 3,838 |  |  | $ | (10,873 | ) |  | $ | 12,263 |  |
| Current Liabilities | $ | 548 |  |  | $ | 3,234 |  |  | $ | 1,874 |  |  | $ | (4,631 | ) |  | $ | 1,025 |  |
| Noncurrent Liabilities | 521 |  |  | 1,961 |  |  | 461 |  |  | (38 | ) |  | 2,905 |  |
| Long-Term Debt | 2,137 |  |  | — |  |  | — |  |  | — |  |  | 2,137 |  |
| Member’s Equity | 6,196 |  |  | 4,701 |  |  | 1,503 |  |  | (6,204 | ) |  | 6,196 |  |
| Total Liabilities and Member’s Equity | $ | 9,402 |  |  | $ | 9,896 |  |  | $ | 3,838 |  |  | $ | (10,873 | ) |  | $ | 12,263 |  |
| As of December 31, 2017 |  |  |  |  |  |  |  |  |  |
| Current Assets | $ | 4,327 |  |  | $ | 1,500 |  |  | $ | 200 |  |  | $ | (4,686 | ) |  | $ | 1,341 |  |
| Property, Plant and Equipment, net | 54 |  |  | 5,778 |  |  | 2,764 |  |  | — |  |  | 8,596 |  |
| Investment in Subsidiaries | 4,844 |  |  | 404 |  |  | — |  |  | (5,248 | ) |  | — |  |
| Noncurrent Assets | 100 |  |  | 2,349 |  |  | 110 |  |  | (78 | ) |  | 2,481 |  |
| Total Assets | $ | 9,325 |  |  | $ | 10,031 |  |  | $ | 3,074 |  |  | $ | (10,012 | ) |  | $ | 12,418 |  |
| Current Liabilities | $ | 689 |  |  | $ | 3,586 |  |  | $ | 1,846 |  |  | $ | (4,686 | ) |  | $ | 1,435 |  |
| Noncurrent Liabilities | 533 |  |  | 1,966 |  |  | 459 |  |  | (78 | ) |  | 2,880 |  |
| Long-Term Debt | 2,136 |  |  | — |  |  | — |  |  | — |  |  | 2,136 |  |
| Member’s Equity | 5,967 |  |  | 4,479 |  |  | 769 |  |  | (5,248 | ) |  | 5,967 |  |
| Total Liabilities and Member’s Equity | $ | 9,325 |  |  | $ | 10,031 |  |  | $ | 3,074 |  |  | $ | (10,012 | ) |  | $ | 12,418 |  |
Power [Member] |
Debt Instrument [Line Items] |
Guarantees of Debt | Guarantees of Debt Power’s Senior Notes are fully and unconditionally and jointly and severally guaranteed by its subsidiaries, PSEG Fossil LLC, PSEG Nuclear LLC and PSEG Energy Resources & Trade LLC. The following tables present condensed financial information for the guarantor subsidiaries, as well as Power’s non-guarantor subsidiaries, as of March 31, 2018 and December 31, 2017 and for the three months ended March 31, 2018 and 2017.
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Operating Revenues | $ | — |  |  | $ | 1,386 |  |  | $ | 51 |  |  | $ | (34 | ) |  | $ | 1,403 |  |
| Operating Expenses | — |  |  | 1,056 |  |  | 52 |  |  | (34 | ) |  | 1,074 |  |
| Operating Income (Loss) | — |  |  | 330 |  |  | (1 | ) |  | — |  |  | 329 |  |
| Equity Earnings (Losses) of Subsidiaries | 234 |  |  | (3 | ) |  | 2 |  |  | (231 | ) |  | 2 |  |
| Net Gains (Losses) on Trust Investments | — |  |  | (22 | ) |  | — |  |  | — |  |  | (22 | ) |
| Other Income (Deductions) | 35 |  |  | 33 |  |  | — |  |  | (57 | ) |  | 11 |  |
| Non-Operating Pension and OPEB Credits (Costs) | — |  |  | 4 |  |  | — |  |  | — |  |  | 4 |  |
| Interest Expense | (42 | ) |  | (17 | ) |  | (5 | ) |  | 57 |  |  | (7 | ) |
| Income Tax Benefit (Expense) | 7 |  |  | (92 | ) |  | 2 |  |  | — |  |  | (83 | ) |
| Net Income (Loss) | $ | 234 |  |  | $ | 233 |  |  | $ | (2 | ) |  | $ | (231 | ) |  | $ | 234 |  |
| Comprehensive Income (Loss) | $ | 229 |  |  | $ | 223 |  |  | $ | (2 | ) |  | $ | (221 | ) |  | $ | 229 |  |
| Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Net Cash Provided By (Used In) Operating Activities | $ | (5 | ) |  | $ | 525 |  |  | $ | (49 | ) |  | $ | 71 |  |  | $ | 542 |  |
| Net Cash Provided By (Used In) Investing Activities | $ | (215 | ) |  | $ | (625 | ) |  | $ | (82 | ) |  | $ | 605 |  |  | $ | (317 | ) |
| Net Cash Provided By (Used In) Financing Activities | $ | 220 |  |  | $ | 100 |  |  | $ | 111 |  |  | $ | (677 | ) |  | $ | (246 | ) |
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |
| Operating Revenues | $ | — |  |  | $ | 1,255 |  |  | $ | 52 |  |  | $ | (38 | ) |  | $ | 1,269 |  |
| Operating Expenses | 4 |  |  | 1,556 |  |  | 52 |  |  | (38 | ) |  | 1,574 |  |
| Operating Income (Loss) | (4 | ) |  | (301 | ) |  | — |  |  | — |  |  | (305 | ) |
| Equity Earnings (Losses) of Subsidiaries | (161 | ) |  | (1 | ) |  | 3 |  |  | 162 |  |  | 3 |  |
| Net Gains (Losses) on Trust Investments | 4 |  |  | 15 |  |  | — |  |  | — |  |  | 19 |  |
| Other Income (Deductions) | 20 |  |  | 19 |  |  | — |  |  | (28 | ) |  | 11 |  |
| Non-Operating Pension and OPEB Credits (Costs) | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |
| Interest Expense | (30 | ) |  | (9 | ) |  | (5 | ) |  | 28 |  |  | (16 | ) |
| Income Tax Benefit (Expense) | 1 |  |  | 111 |  |  | 4 |  |  | — |  |  | 116 |  |
| Net Income (Loss) | $ | (170 | ) |  | $ | (164 | ) |  | $ | 2 |  |  | $ | 162 |  |  | $ | (170 | ) |
| Comprehensive Income (Loss) | $ | (146 | ) |  | $ | (143 | ) |  | $ | 2 |  |  | $ | 141 |  |  | $ | (146 | ) |
| Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |
| Net Cash Provided By (Used In) Operating Activities | $ | 77 |  |  | $ | 377 |  |  | $ | 91 |  |  | $ | 35 |  |  | $ | 580 |  |
| Net Cash Provided By (Used In) Investing Activities | $ | 251 |  |  | $ | 20 |  |  | $ | (154 | ) |  | $ | (511 | ) |  | $ | (394 | ) |
| Net Cash Provided By (Used In) Financing Activities | $ | (328 | ) |  | $ | (395 | ) |  | $ | 68 |  |  | $ | 476 |  |  | $ | (179 | ) |
|  | Power |  | Guarantor Subsidiaries |  | Other Subsidiaries |  | Consolidating Adjustments |  | Total |
|  | Millions |
| As of March 31, 2018 |  |  |  |  |  |  |  |  |  |
| Current Assets | $ | 4,168 |  |  | $ | 1,392 |  |  | $ | 189 |  |  | $ | (4,631 | ) |  | $ | 1,118 |  |
| Property, Plant and Equipment, net | 55 |  |  | 5,094 |  |  | 3,540 |  |  | — |  |  | 8,689 |  |
| Investment in Subsidiaries | 5,089 |  |  | 1,115 |  |  | — |  |  | (6,204 | ) |  | — |  |
| Noncurrent Assets | 90 |  |  | 2,295 |  |  | 109 |  |  | (38 | ) |  | 2,456 |  |
| Total Assets | $ | 9,402 |  |  | $ | 9,896 |  |  | $ | 3,838 |  |  | $ | (10,873 | ) |  | $ | 12,263 |  |
| Current Liabilities | $ | 548 |  |  | $ | 3,234 |  |  | $ | 1,874 |  |  | $ | (4,631 | ) |  | $ | 1,025 |  |
| Noncurrent Liabilities | 521 |  |  | 1,961 |  |  | 461 |  |  | (38 | ) |  | 2,905 |  |
| Long-Term Debt | 2,137 |  |  | — |  |  | — |  |  | — |  |  | 2,137 |  |
| Member’s Equity | 6,196 |  |  | 4,701 |  |  | 1,503 |  |  | (6,204 | ) |  | 6,196 |  |
| Total Liabilities and Member’s Equity | $ | 9,402 |  |  | $ | 9,896 |  |  | $ | 3,838 |  |  | $ | (10,873 | ) |  | $ | 12,263 |  |
| As of December 31, 2017 |  |  |  |  |  |  |  |  |  |
| Current Assets | $ | 4,327 |  |  | $ | 1,500 |  |  | $ | 200 |  |  | $ | (4,686 | ) |  | $ | 1,341 |  |
| Property, Plant and Equipment, net | 54 |  |  | 5,778 |  |  | 2,764 |  |  | — |  |  | 8,596 |  |
| Investment in Subsidiaries | 4,844 |  |  | 404 |  |  | — |  |  | (5,248 | ) |  | — |  |
| Noncurrent Assets | 100 |  |  | 2,349 |  |  | 110 |  |  | (78 | ) |  | 2,481 |  |
| Total Assets | $ | 9,325 |  |  | $ | 10,031 |  |  | $ | 3,074 |  |  | $ | (10,012 | ) |  | $ | 12,418 |  |
| Current Liabilities | $ | 689 |  |  | $ | 3,586 |  |  | $ | 1,846 |  |  | $ | (4,686 | ) |  | $ | 1,435 |  |
| Noncurrent Liabilities | 533 |  |  | 1,966 |  |  | 459 |  |  | (78 | ) |  | 2,880 |  |
| Long-Term Debt | 2,136 |  |  | — |  |  | — |  |  | — |  |  | 2,136 |  |
| Member’s Equity | 5,967 |  |  | 4,479 |  |  | 769 |  |  | (5,248 | ) |  | 5,967 |  |
| Total Liabilities and Member’s Equity | $ | 9,325 |  |  | $ | 10,031 |  |  | $ | 3,074 |  |  | $ | (10,012 | ) |  | $ | 12,418 |  |

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