Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Operating Revenues		$ 2,760	$ 3,755
Operating Expenses [Abstract]
Energy Costs		997	1,082
Operation and Maintenance		783	743
Depreciation and Amortization		295	282
Total Operating Expenses		2,075	2,107
OPERATING INCOME (LOSS)		685	1,648
Income from Equity Method Investments		0	1
Net Gains (Losses) on Trust Investments		95	46
Other Income (Deductions)		35	42
Non-Operating Pension and OPEB Credits (Costs)		19	28
Interest Expense		(205)	(180)
Income Before Income Taxes		629	1,585
Income Tax Benefit (Expense)		(97)	(298)
Net Income (Loss)	[1]	$ 532	$ 1,287
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (shares)		499	497
DILUTED (shares)		500	500
EARNINGS PER SHARE:
BASIC (dollars per share)		$ 1.07	$ 2.59
DILUTED (dollars per share)		$ 1.06	$ 2.58
Public Service Electric and Gas Company [Member]
Operating Revenues		$ 2,333	$ 2,293
Operating Expenses [Abstract]
Energy Costs		928	984
Operation and Maintenance		465	460
Depreciation and Amortization		257	244
Total Operating Expenses		1,650	1,688
OPERATING INCOME (LOSS)		683	605
Other Income (Deductions)		16	21
Non-Operating Pension and OPEB Credits (Costs)		19	28
Interest Expense		(138)	(113)
Income Before Income Taxes		580	541
Income Tax Benefit (Expense)		(92)	(54)
Net Income (Loss)		$ 488	$ 487

[1] Includes net after-tax gains (losses) of $(186) million and $555 million for the three months ended March 31, 2024 and 2023, 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.