Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Operating Revenues	$ 9,722		$ 9,603		$ 10,076
Operating Expenses [Abstract]
Energy Costs	3,499		3,056		3,372
Operation and Maintenance	3,226		3,115		3,111
Depreciation and Amortization	1,216		1,285		1,248
(Gains) Losses on Asset Dispositions and Impairments	2,637		(123)		402
Total Operating Expenses	10,578		7,333		8,133
OPERATING INCOME	(856)		2,270		1,943
Income from Equity Method Investments	16		14		14
Net Gains (Losses) on Trust Investments	194		253		260
Other Income (Deductions)	98		115		125
Non-Operating Pension and Other Postretirement Plan Credits (Costs)	328		249		177
Loss on Extinguishment of Debt	(298)		0		0
Interest Expense	(571)		(600)		(569)
Income (Loss) before Income Taxes	(1,089)		2,301		1,950
Income Tax (Expense) Benefit	441		(396)		(257)
Net Income	$ (648)	[1]	$ 1,905	[1]	$ 1,693
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC	504		504		504
DILUTED	504		507		507
EARNINGS PER SHARE:
NET INCOME, BASIC	$ (1.29)		$ 3.78		$ 3.35
NET INCOME, DILUTED	$ (1.29)		$ 3.76		$ 3.33
Public Service Electric and Gas Company
Operating Revenues	$ 7,122		$ 6,608		$ 6,625
Operating Expenses [Abstract]
Energy Costs	2,688		2,469		2,738
Operation and Maintenance	1,692		1,614		1,581
Depreciation and Amortization	928		887		837
(Gains) Losses on Asset Dispositions and Impairments	(4)		(1)		0
Total Operating Expenses	5,304		4,969		5,156
OPERATING INCOME	1,818		1,639		1,469
Net Gains (Losses) on Trust Investments	2		3		2
Other Income (Deductions)	88		108		83
Non-Operating Pension and Other Postretirement Plan Credits (Costs)	264		205		150
Interest Expense	(402)		(388)		(361)
Income (Loss) before Income Taxes	1,770		1,567		1,343
Income Tax (Expense) Benefit	(324)		(240)		(93)
Net Income	$ 1,446		$ 1,327		$ 1,250

[1] Includes after-tax impairment losses and other charges, including debt extinguishment costs, related to the sale of the fossil generating assets at PSEG Power of $2,158 million in the year ended December 31, 2021. Includes an after-tax gain of $86 million in the year ended December 31, 2020 related to the sale of PSEG Power’s interest in the Yards Creek generation facility and an after-tax loss of $286 million in the year ended December 31, 2019 related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh fossil generation plants. See Note 4. Early Plant Retirements/Asset Dispositions and Impairments for additional information.(D)Includes net after-tax losses of $446 million and $58 million in the years ended December 31, 2021 and 2020 and a net after-tax gain of $205 million in the year ended December 31, 2019 at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consists of the financial impact from positions with future delivery dates.