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Regulatory Assets And Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Regulatory Assets and Liabilities Disclosure [Abstract] |
Schedule of Regulatory Assets | PSE&G had the following Regulatory Assets and Liabilities:
|  |  | As of December 31, |
|  |  | 2020 |  | 2019 |
|  |  | Millions |
| Regulatory Assets |  |  |  |  |
| Current |  |  |  |  |
| New Jersey Clean Energy Program |  | $ | 143 |  |  | $ | 143 |  |
| Societal Benefits Charge (SBC) |  | 82 |  |  | 30 |  |
| Electric Energy Costs—Basic Generation Service (BGS) |  | 60 |  |  | 57 |  |
| 2018 Distribution Base Rate Case Regulatory Assets (BRC) |  | 56 |  |  | 56 |  |
| Formula Rate True-up |  | 23 |  |  | 52 |  |
| Other |  | 5 |  |  | 13 |  |
| Total Current Regulatory Assets |  | 369 |  |  | 351 |  |
| Noncurrent |  |  |  |  |
| Pension and OPEB Costs |  | $ | 1,489 |  |  | $ | 1,284 |  |
| Deferred Income Tax Regulatory Assets |  | 1,014 |  |  | 966 |  |
| Manufactured Gas Plant (MGP) Remediation Costs |  | 320 |  |  | 357 |  |
| Electric Transmission and Gas Cost of Removal |  | 189 |  |  | 216 |  |
| Asset Retirement Obligation |  | 184 |  |  | 172 |  |
| Green Program Recovery Charges (GPRC) |  | 139 |  |  | 118 |  |
| Remediation Adjustment Charge (RAC) (Other SBC) |  | 134 |  |  | 158 |  |
| BRC |  | 103 |  |  | 159 |  |
| Deferred Storm Costs |  | 99 |  |  | 12 |  |
| COVID-19 Deferral |  | 51 |  |  | — |  |
| Unamortized Loss on Reacquired Debt and Debt Expense |  | 36 |  |  | 42 |  |
| Gas Costs—BGSS |  | 26 |  |  | 27 |  |
| Other |  | 88 |  |  | 166 |  |
| Total Noncurrent Regulatory Assets |  | 3,872 |  |  | 3,677 |  |
| Total Regulatory Assets |  | $ | 4,241 |  |  | $ | 4,028 |  |
Schedule of Regulatory Liabilities |
|  |  | As of December 31, |
|  |  | 2020 |  | 2019 |
|  |  | Millions |
| Regulatory Liabilities |  |  |  |  |
| Current |  |  |  |  |
| Deferred Income Tax Regulatory Liabilities |  | $ | 223 |  |  | $ | 193 |  |
| Gas Costs—BGSS |  | 20 |  |  | — |  |
| ZEC Liability |  | 17 |  |  | 10 |  |
| Tax Adjustment Credit (TAC) |  | 5 |  |  | 12 |  |
| Weather Normalization Charge (WNC) |  | 2 |  |  | 15 |  |
| Other |  | 27 |  |  | 4 |  |
| Total Current Regulatory Liabilities |  | 294 |  |  | 234 |  |
| Noncurrent |  |  |  |  |
| Deferred Income Tax Regulatory Liabilities |  | $ | 2,670 |  |  | $ | 2,955 |  |
| Electric Distribution Cost of Removal |  | 37 |  |  | 47 |  |
| Total Noncurrent Regulatory Liabilities |  | 2,707 |  |  | 3,002 |  |
| Total Regulatory Liabilities |  | $ | 3,001 |  |  | $ | 3,236 |  |

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 + Details
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- Definition Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
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