Income Taxes - Schedule Of Effective Tax Rates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Net Income	$ 1,772	$ 2,563	$ 1,031
Current Expense (Benefit):
Federal	(225)	144	262
State	15	19	(30)
Total Current	(210)	163	232
Deferred Expense (Benefit):
Federal	129	109	(335)
State	140	253	80
Total Deferred	269	362	(255)
ITC	(6)	(7)	(6)
Total Income Tax Expense (Benefit)	53	518	(29)
Pre-Tax Income	1,825	3,081	1,002
Tax Computed at Statutory Rate	383	647	210
Increase (Decrease) Attributable to Flow-Through of Certain Tax Adjustments:
State Income Taxes (net of federal income tax)	122	215	41
Uncertain Tax Positions	95	(14)	(22)
NDT Fund	21	26	(22)
Plant-Related Items	5	(7)	(6)
Tax Credits	(361)	(10)	(10)
Audit Settlement	0	(7)	0
Leasing Activities	0	(22)	0
GPRC-CEF-EE	(52)	(52)	(37)
Tax Adjustment Credit	(145)	(232)	(193)
Bad Debt Flow-Through	(14)	(9)	(1)
Other	(1)	(17)	11
Subtotal	(330)	(129)	(239)
Total Income Tax Expense (Benefit)	$ 53	$ 518	$ (29)
Effective Income Tax Rate	2.90%	16.80%	(2.90%)
Public Service Electric and Gas Company [Member]
Income Taxes [Line Items]
Net Income	$ 1,547	$ 1,515	$ 1,565
Current Expense (Benefit):
Federal	(67)	127	130
State	0	4	0
Total Current	(67)	131	130
Deferred Expense (Benefit):
Federal	209	(113)	(17)
State	162	149	159
Total Deferred	371	36	142
ITC	(6)	(7)	(5)
Total Income Tax Expense (Benefit)	298	160	267
Pre-Tax Income	1,845	1,675	1,832
Tax Computed at Statutory Rate	387	352	385
Increase (Decrease) Attributable to Flow-Through of Certain Tax Adjustments:
State Income Taxes (net of federal income tax)	128	121	126
Uncertain Tax Positions	0	(9)	2
Plant-Related Items	5	(7)	(6)
Tax Credits	(9)	(9)	(9)
GPRC-CEF-EE	(52)	(52)	(37)
Tax Adjustment Credit	(145)	(232)	(193)
Bad Debt Flow-Through	(14)	(9)	(1)
Other	(2)	5	0
Subtotal	(89)	(192)	(118)
Total Income Tax Expense (Benefit)	$ 298	$ 160	$ 267
Effective Income Tax Rate	16.20%	9.60%	14.60%