Financial Risk Management Activities - Schedule of Net Notional Volume for Open Derivative Contracts (Details) - PSEG Power [Member] |
3 Months Ended | 12 Months Ended |
|---|---|---|
|
Mar. 31, 2025
$ / MWh
$ / dth
$ / $
|
Dec. 31, 2024
$ / $
$ / dth
$ / MWh
|
|
| Natural Gas Dth [Member] | ||
| Derivative [Line Items] | ||
| Net notional volume of derivative transactions | $ / dth | 90 | 70 |
| Electricity MWh [Member] | ||
| Derivative [Line Items] | ||
| Net notional volume of derivative transactions | (64) | (49) |
| FTRs MWh [Member] | ||
| Derivative [Line Items] | ||
| Net notional volume of derivative transactions | 10 | 16 |
| Interest Rate Swaps [Member] | ||
| Derivative [Line Items] | ||
| Net notional volume of derivative transactions | $ / $ | 1,000 | 2,290 |