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Fair Value Measurements - PSEG's and PSE&G's Respective Assets and (Liabilities) Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets |  | $ 35 | $ 84
Total Mark-to-Market Derivative (Liabilities) |  | (41) | (9)
Collateral netted against assets and liabilities | [1] | (81) | (121)
Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 40 | 100
Quoted Market Prices of Identical Assets (Level 1) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 40 | 70
Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 0 | 0
Significant Other Observable Inputs (Level 2) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 0 | 0
Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 0 | 0
Significant Unobservable Inputs (Level 3) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 0 | 0
Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 40 | 100
Total Estimate of Fair Value | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents, Fair Value Disclosure | [2] | 40 | 70
Energy-Related Contracts [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [3] | 3 | 2
Total Mark-to-Market Derivative (Liabilities) | [3] | (1) | (3)
Energy-Related Contracts [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [3] | 1,461 | 776
Total Mark-to-Market Derivative (Liabilities) | [3] | (1,548) | (852)
Energy-Related Contracts [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [3] | 0 | 0
Total Mark-to-Market Derivative (Liabilities) | [3] | (1) | (1)
Energy-Related Contracts [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [3] | 35 | 52
Total Mark-to-Market Derivative (Liabilities) | [3] | (40) | (9)
Interest Rate Swap [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [4] |  | 0
Total Mark-to-Market Derivative (Liabilities) | [4] | 0 |
Interest Rate Swap [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [4] |  | 32
Total Mark-to-Market Derivative (Liabilities) | [4] | (1) |
Interest Rate Swap [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [4] |  | 0
Total Mark-to-Market Derivative (Liabilities) | [4] | 0 |
Interest Rate Swap [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total Mark-to-Market Derivative Assets | [4] |  | 32
Total Mark-to-Market Derivative (Liabilities) | [4] | (1) |
Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [2],[5] | 0 | 0
Cash and Cash Equivalents | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [2],[5] | 0 | 0
Assets | Energy-Related Contracts [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [1],[3],[5] | 1,429 | 726
Other Liabilities | Energy-Related Contracts [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [1],[3],[5] | (1,510) | (847)
Other Liabilities | Interest Rate Swap [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [4],[5] | 0 |
Other Assets | Interest Rate Swap [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [4],[5] |  | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Corporate Debt Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Corporate Debt Obligations [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Corporate Debt Obligations [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 555 | 503
Nuclear Decommissioning Trust (NDT) Fund [Member] | Corporate Debt Obligations [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Corporate Debt Obligations [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 555 | 503
Nuclear Decommissioning Trust (NDT) Fund [Member] | Government Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Government Debt Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Government Debt Securities [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 415 | 397
Nuclear Decommissioning Trust (NDT) Fund [Member] | Government Debt Securities [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Government Debt Securities [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 415 | 397
Nuclear Decommissioning Trust (NDT) Fund [Member] | US Treasury Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | US Treasury Securities | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | US Treasury Securities | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 354 | 366
Nuclear Decommissioning Trust (NDT) Fund [Member] | US Treasury Securities | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | US Treasury Securities | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 354 | 366
Nuclear Decommissioning Trust (NDT) Fund [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Equity Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 1,497 | 1,380
Nuclear Decommissioning Trust (NDT) Fund [Member] | Equity Securities [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Equity Securities [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Nuclear Decommissioning Trust (NDT) Fund [Member] | Equity Securities [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 1,497 | 1,380
Rabbi Trust [Member] | Corporate Debt Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Quoted Market Prices of Identical Assets (Level 1) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 61 | 65
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Significant Other Observable Inputs (Level 2) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 11 | 12
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Significant Unobservable Inputs (Level 3) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 61 | 65
Rabbi Trust [Member] | Corporate Debt Obligations [Member] | Total Estimate of Fair Value | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 11 | 12
Rabbi Trust [Member] | Government Debt Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 27 | 28
Rabbi Trust [Member] | Government Debt Securities [Member] | Significant Other Observable Inputs (Level 2) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 5 | 5
Rabbi Trust [Member] | Government Debt Securities [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Significant Unobservable Inputs (Level 3) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Government Debt Securities [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 27 | 28
Rabbi Trust [Member] | Government Debt Securities [Member] | Total Estimate of Fair Value | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 5 | 5
Rabbi Trust [Member] | US Treasury Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Quoted Market Prices of Identical Assets (Level 1) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 59 | 55
Rabbi Trust [Member] | US Treasury Securities | Significant Other Observable Inputs (Level 2) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 10 | 10
Rabbi Trust [Member] | US Treasury Securities | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Significant Unobservable Inputs (Level 3) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | US Treasury Securities | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 59 | 55
Rabbi Trust [Member] | US Treasury Securities | Total Estimate of Fair Value | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 10 | 10
Rabbi Trust [Member] | Equity Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral netted against assets and liabilities | [5],[6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 17 | 17
Rabbi Trust [Member] | Equity Securities [Member] | Quoted Market Prices of Identical Assets (Level 1) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 3 | 3
Rabbi Trust [Member] | Equity Securities [Member] | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Significant Other Observable Inputs (Level 2) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Significant Unobservable Inputs (Level 3) | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 0 | 0
Rabbi Trust [Member] | Equity Securities [Member] | Total Estimate of Fair Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | 17 | 17
Rabbi Trust [Member] | Equity Securities [Member] | Total Estimate of Fair Value | Public Service Electric and Gas Company |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measured on Recurring Basis, Investments | [6] | $ 3 | $ 3
[1] | Represents the netting of fair value balances with the same counterparty (where the right of offset exists) and the application of cash collateral. All cash collateral (received) posted that has been allocated to derivative positions, where the right of offset exists, has been offset on the Condensed Consolidated Balance Sheets. As of June 30, 2025 and December 31, 2024, PSEG Power had net cash collateral (receipts) payments to counterparties of $257 million and $244 million, respectively. Of these net cash collateral (receipts) payments, $81 million as of June 30, 2025 and $121 million as of December 31, 2024 were netted against the corresponding net derivative contract positions. Of the $81 million as of June 30, 2025, $62 million was netted against current liabilities and $19 million against noncurrent liabilities. Of the $121 million as of December 31, 2024, $73 million was netted against current liabilities and $48 million against noncurrent liabilities.
[2] | Represents money market mutual funds.
[3] | Level 1—These contracts represent natural gas futures contracts executed on an exchange, and are being valued solely on settled pricing inputs which come directly from the exchange. Level 2—Fair values for energy-related contracts are obtained primarily using a market-based approach. Most derivative contracts (forward purchase or sale contracts and swaps) are valued using settled prices from similar assets and liabilities from an exchange, such as NYMEX, ICE and Nodal Exchange, or auction prices. Prices used in the valuation process are also corroborated independently by management to determine that values are based on actual transaction data or, in the absence of transactions, bid and offers for the day. Examples may include certain exchange and non-exchange traded capacity and electricity contracts and natural gas physical or swap contracts based on market prices, basis adjustments and other premiums where adjustments and premiums are not considered significant to the overall inputs. Level 3—Unobservable inputs are used for the valuation of certain contracts. See “Additional Information Regarding Level 3 Measurements” for more information on the utilization of unobservable inputs.
[4] | Interest rate derivatives are valued using quoted prices on commonly quoted intervals, which are interpolated for periods different than the quoted intervals, as inputs to a market valuation model. Market inputs can generally be verified and model selection does not involve significant management judgment.
[5] | Represents the netting of fair value balances with the same counterparty (where the right of offset exists) and the application of collateral. See Note 10. Financial Risk Management Activities for additional detail.
[6] | The NDT Fund maintains investments in various equity and fixed income securities. The Rabbi Trust maintains investments in a Russell 3000 index fund and various fixed income securities. These securities are generally valued with prices that are either exchange provided (equity securities) or market transactions for comparable securities and/or broker quotes (fixed income securities). The fair value measurement table excludes any cash and foreign currency included in these trusts. For additional information, see Note 6. Trust Investments. Level 1—Investments in marketable equity securities within the NDT Fund are primarily investments in common stocks across a broad range of industries and sectors. Most equity securities are priced utilizing the principal market close price or, in some cases, midpoint, bid or ask price. Certain other equity securities in the NDT and Rabbi Trust Funds consist primarily of investments in money market funds which seek a high level of current income as is consistent with the preservation of capital and the maintenance of liquidity. To pursue its goals, the funds normally invest in diversified portfolios of high quality, short-term, dollar-denominated debt securities and government securities. The funds’ net asset value is priced and published daily. The Rabbi Trust’s Russell 3000 index fund is valued based on quoted prices in an active market and can be redeemed daily without restriction. Level 2—NDT and Rabbi Trust fixed income securities include primarily investment grade corporate bonds, collateralized mortgage obligations, asset-backed securities and certain government and U.S. Treasury obligations or Federal Agency asset-backed securities and municipal bonds with a wide range of maturities. Since many fixed income securities do not trade on a daily basis, they are priced using an evaluated pricing methodology that varies by asset class and reflects observable market information such as the most recent exchange price or quoted bid for similar securities. Market-based standard inputs typically include benchmark yields, reported trades, broker/dealer quotes and issuer spreads. Certain short-term investments are valued using observable market prices or market parameters such as time-to-maturity, coupon rate, quality rating and current yield.

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