Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating Revenues		$ 2,456	$ 2,272	$ 8,632	$ 6,661
Operating Expenses [Abstract]
Energy Costs		831	1,012	2,517	3,022
Operation and Maintenance		792	765	2,279	2,310
Depreciation and Amortization		282	270	843	822
(Gains) Losses on Asset Dispositions and Impairments		0	52	0	90
Total Operating Expenses		1,905	2,099	5,639	6,244
OPERATING INCOME (LOSS)		551	173	2,993	417
Income from Equity Method Investments		0	5	1	16
Net Gains (Losses) on Trust Investments		(40)	(97)	63	(352)
Other Income (Deductions)		41	43	132	86
Non-Operating Pension and OPEB Credits (Costs)		(302)	94	(245)	282
Interest Expense		(185)	(163)	(550)	(450)
Income Before Income Taxes		65	55	2,394	(1)
Income Tax Benefit (Expense)		74	59	(377)	244
Net Income (Loss)	[1]	$ 139	$ 114	$ 2,017	$ 243
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (shares)		498	497	497	498
DILUTED (shares)		500	500	500	501
EARNINGS PER SHARE:
BASIC (dollars per share)		$ 0.28	$ 0.23	$ 4.06	$ 0.49
DILUTED (dollars per share)		$ 0.27	$ 0.22	$ 4.03	$ 0.48
Public Service Electric and Gas Company [Member]
Operating Revenues		$ 1,999	$ 1,953	$ 5,954	$ 5,905
Operating Expenses [Abstract]
Energy Costs		765	791	2,300	2,389
Operation and Maintenance		459	452	1,348	1,349
Depreciation and Amortization		244	229	728	697
(Gains) Losses on Asset Dispositions and Impairments		0	(1)	0	(1)
Total Operating Expenses		1,468	1,471	4,376	4,434
OPERATING INCOME (LOSS)		531	482	1,578	1,471
Net Gains (Losses) on Trust Investments		0	0	0	(2)
Other Income (Deductions)		21	25	65	66
Non-Operating Pension and OPEB Credits (Costs)		30	70	86	211
Interest Expense		(128)	(109)	(364)	(319)
Income Before Income Taxes		454	468	1,365	1,427
Income Tax Benefit (Expense)		(53)	(69)	(141)	(214)
Net Income (Loss)		$ 401	$ 399	$ 1,224	$ 1,213

[1] Includes net after-tax gains (losses) of $(17) million and $(214) million for the three months and $750 million and $(896) million for the nine months ended September 30, 2023 and 2022, respectively, at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consist of the financial impact from positions with future delivery dates. Includes a $239 million after-tax pension charge due to the remeasurement of the qualified pension plans as a result of the pension settlement transaction for the three and nine months ended September 30, 2023. See Note 9. Pension and Other Postretirement Benefits (OPEB) .