Trust Investments - Schedule of Fair Value of Rabbi Trust (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	$ 162	$ 165
Public Service Electric and Gas Company [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	29	30
Rabbi Trust [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	162	165
Rabbi Trust [Member] | Public Service Electric and Gas Company [Member]
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	29	30
Rabbi Trust [Member] | PSEG Power & Other
Schedule of Trust Investments [Line Items]
Total Rabbi Trust Investments	$ 133	$ 135