Regulatory Assets And Liabilities - (Schedule Of Regulatory Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2018
Regulatory Assets And Liabilities [Line Items]
Regulatory Assets, Current	$ 537	$ 516
Regulatory Assets, Noncurrent	6,431	6,125
Regulatory Liabilities, Current	484	555
Regulatory Liabilities, Noncurrent	2,048	2,271
Public Service Electric and Gas Company
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	6,968	6,641
Regulatory Assets, Current	537	516
Regulatory Assets, Noncurrent	6,431	6,125
Total Regulatory Liabilities	2,532	2,826
Regulatory Liabilities, Current	484	555
Regulatory Liabilities, Noncurrent	2,048	2,271
Public Service Electric and Gas Company | Tax Adjustment Credit [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets			$ 509	$ 581
Public Service Electric and Gas Company | Deferred Income Taxes [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	2,273	2,012
Public Service Electric and Gas Company | Green Program Recovery Charges [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	1,593	1,251
Public Service Electric and Gas Company | Pension and Other Postretirement Benefit Costs [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	1,213	1,330
Public Service Electric and Gas Company | Conditional Asset Retirement Obligation [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	237	221
Public Service Electric and Gas Company | Clean Energy Future - Energy Cloud [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	206	233
Public Service Electric and Gas Company | Electric Cost Of Removal [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	184	195
Public Service Electric and Gas Company | Societal Benefits Charges Sbc [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	182	211
Public Service Electric and Gas Company | Manufactured Gas Plant Remediation Costs [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	179	210
Public Service Electric and Gas Company | New Jersey Clean Energy Program [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	145	145
Public Service Electric and Gas Company | Conservation Incentive Program [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	127	261
Public Service Electric and Gas Company | COVID-19 Deferral [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	109	131
Public Service Electric and Gas Company | Remediation Adjustment Clause Other Sbc [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	101	102
Public Service Electric and Gas Company | Clean Energy Future-Electric Vehicles [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	92	51
Public Service Electric and Gas Company | Base Rate Case [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	85	108
Public Service Electric and Gas Company | Other Regulatory Assets [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Assets	242	180
Public Service Electric and Gas Company | Excess Deferred Income Taxes [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Liabilities	2,317	2,619
Public Service Electric and Gas Company | Gas Costs - BGSS [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Liabilities	118	145
Public Service Electric and Gas Company | Other [Member]
Regulatory Assets And Liabilities [Line Items]
Total Regulatory Liabilities	$ 97	$ 62