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Debt and Credit Facilities - Schedule of Line of Credit Facilities (Parenthetical) (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | [1] | $ 3,825 |
Commercial Paper and Loans |  | 650 | $ 1,593
PSEG Power [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,325 |
Public Service Electric and Gas Company [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,000 |
Commercial Paper and Loans |  | 200 | $ 444
Revolving Credit Facility [Member] | PSEG Power [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,250 |
Revolving Credit Facility [Member] | Public Service Electric and Gas Company [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Commercial Paper and Loans |  | $ 200 |
Short-term Debt, Weighted Average Interest Rate, at Point in Time |  | 4.59% |
PSEG [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 1,500 |
PSEG [Member] | Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,500 |
Commercial Paper and Loans |  | $ 50 |
Short-term Debt, Weighted Average Interest Rate, at Point in Time |  | 4.60% |
[1] | Amounts do not include uncommitted credit facilities or 364-day term loans, if any apply.

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