Trust Investments - Schedule of Fair Value of Rabbi Trust (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Schedule of Trust Investments [Line Items] | ||
| Total Rabbi Trust Investments | $ 158 | $ 162 |
| Public Service Electric and Gas Company [Member] | ||
| Schedule of Trust Investments [Line Items] | ||
| Total Rabbi Trust Investments | 28 | 29 |
| Rabbi Trust [Member] | ||
| Schedule of Trust Investments [Line Items] | ||
| Total Rabbi Trust Investments | 158 | 162 |
| Rabbi Trust [Member] | Public Service Electric and Gas Company [Member] | ||
| Schedule of Trust Investments [Line Items] | ||
| Total Rabbi Trust Investments | 28 | 29 |
| Rabbi Trust [Member] | PSEG Power & Other | ||
| Schedule of Trust Investments [Line Items] | ||
| Total Rabbi Trust Investments | $ 130 | $ 133 |