Trust Investments - Fair Value Of Rabbi Trust (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	$ 175	$ 179
Public Service Electric and Gas Company [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	32	32
Rabbi Trust [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	175	179
Rabbi Trust [Member] | Public Service Electric and Gas Company [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	32	32
Rabbi Trust [Member] | PSEG Power & Other
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	$ 143	$ 147