Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues		$ 2,076	$ 1,874	$ 4,389	$ 4,763
Operating Expenses [Abstract]
Energy Costs		765	606	2,010	1,635
Operation and Maintenance		751	783	1,545	1,561
Depreciation and Amortization		269	322	552	663
(Gains) Losses on Asset Dispositions and Impairments		(5)	457	38	457
Total Operating Expenses		1,780	2,168	4,145	4,316
OPERATING INCOME (LOSS)		296	(294)	244	447
Income from Equity Method Investments		7	6	11	9
Net Gains (Losses) on Trust Investments		(187)	81	(255)	141
Other Income (Deductions)		38	33	43	58
Non-Operating Pension and OPEB Credits (Costs)		94	82	188	164
Interest Expense		(150)	(147)	(287)	(293)
Income Before Income Taxes		98	(239)	(56)	526
Income Tax Benefit (Expense)		33	62	185	(55)
Net Income (Loss)	[1]	$ 131	$ (177)	$ 129	$ 471
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (shares)		497	504	499	504
DILUTED (shares)		500	504	502	507
EARNINGS PER SHARE:
BASIC (dollars per share)		$ 0.26	$ (0.35)	$ 0.26	$ 0.94
DILUTED (dollars per share)		$ 0.26	$ (0.35)	$ 0.26	$ 0.93
Public Service Electric and Gas Company [Member]
Operating Revenues		$ 1,668	$ 1,514	$ 3,952	$ 3,587
Operating Expenses [Abstract]
Energy Costs		630	509	1,598	1,358
Operation and Maintenance		434	393	897	817
Depreciation and Amortization		227	231	468	472
Total Operating Expenses		1,291	1,133	2,963	2,647
OPERATING INCOME (LOSS)		377	381	989	940
Net Gains (Losses) on Trust Investments		(2)	0	(2)	1
Other Income (Deductions)		22	24	41	52
Non-Operating Pension and OPEB Credits (Costs)		71	66	141	132
Interest Expense		(107)	(101)	(210)	(199)
Income Before Income Taxes		361	370	959	926
Income Tax Benefit (Expense)		(56)	(61)	(145)	(140)
Net Income (Loss)		$ 305	$ 309	$ 814	$ 786

[1] Includes a $373 million after-tax impairment of the ISO NE asset grouping at PSEG Power in the three and six months ended June 30, 2021. See Note 4. Early Plant Retirements/Asset Dispositions and Impairments for additional information. Also includes net after-tax losses of $74 million and $206 million for the three months ended June 30, 2022 and 2021, respectively, and $682 million and $240 million for the six months ended June 30, 2022 and 2021, respectively, related to the impacts of non-trading commodity mark-to-market activity, which consist of the financial impact from positions with future delivery dates.