Revenues (Details) $ in Millions		12 Months Ended
		Dec. 31, 2023 USD ($) $ / mwd MW		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Revenue from Contract with Customer, Including Assessed Tax		$ 9,254		$ 11,231	$ 10,315
Revenues Unrelated to Contracts with Customers	[1]	1,983		(1,431)	(593)
Operating Revenues		11,237		9,800	9,722
Regulatory Assets		5,157		4,404
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(1,103)		(1,401)	(1,167)
Revenues Unrelated to Contracts with Customers		0	[1]	0	0	[1]
Operating Revenues	[2]	(1,103)		(1,401)	(1,167)
Public Service Electric and Gas Company
Operating Revenues		7,807		7,935	7,122
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses		283
Provision for Other Credit Losses		100		114
Accounts Receivable, Allowance for Credit Loss, Writeoff		(156)		(112)
Accounts Receivable, Allowance for Credit Loss, Recovery		25		46
Accounts Receivable, Allowance for Credit Loss				339
Regulatory Assets		5,430		4,773
Regulatory Assets		5,157		4,404
Public Service Electric and Gas Company | Societal Benefits Charges Sbc [Member]
Regulatory Assets		149		145
Public Service Electric and Gas Company | COVID-19 Deferral - Bad Debt portion [Member]
Regulatory Assets		68
Public Service Electric and Gas Company | Electric Bad Debt Deferral | Societal Benefits Charges Sbc [Member]
Regulatory Assets		$ 149
Public Service Electric and Gas Company | Cumulative Effect, Period of Adoption, Adjusted Balance
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses				$ 339	337
Public Service Electric and Gas Company
Allowances percentage of accounts receivable		18.00%		20.00%
Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 7,517		$ 7,839	7,108
Revenues Unrelated to Contracts with Customers		290	[1]	96	14	[1]
Operating Revenues		7,807		7,935	7,122
PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax	[3]	2,840		4,793	4,374
Revenues Unrelated to Contracts with Customers		1,693	[1],[3]	(1,527)	(607)	[1],[3]
Operating Revenues	[3]	4,533		3,266	3,767
LIPA OSA contract fixed component [Member] | Other [Member]
Revenue, remaining performance obligation, amount		44
Electric Distribution Contracts [Member]
Revenue from Contract with Customer, Including Assessed Tax		3,494		3,503	3,279
Electric Distribution Contracts [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Electric Distribution Contracts [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		3,494		3,503	3,279
Electric Distribution Contracts [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0	[3]	0	0	[3]
Gas Distribution Contracts [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,982		2,356	1,862
Gas Distribution Contracts [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		(1)	(13)
Gas Distribution Contracts [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,982		2,357	1,875
Gas Distribution Contracts [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0	[3]	0	0	[3]
Transmission [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,673		1,589	1,611
Transmission [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Transmission [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,673		1,589	1,611
Transmission [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0	[3]	0	0	[3]
Other Contract Revenues [Member]
Revenue from Contract with Customer, Including Assessed Tax	[4]	994		989	960
Other Contract Revenues [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(5)	[4]	(6)	(3)	[4]
Other Contract Revenues [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		368	[4]	390	343	[4]
Other Contract Revenues [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		631	[3],[4]	605	620	[3],[4]
ISO New England [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		13		96	172
ISO New England [Member] | Electricity and Related Products [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
ISO New England [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
ISO New England [Member] | Electricity and Related Products [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		13	[3]	96	172	[3]
NY ISO [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax				88	247
NY ISO [Member] | Electricity and Related Products [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax				0	0
NY ISO [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax				0	0
NY ISO [Member] | Electricity and Related Products [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax				88	247	[3]
Third Party Sales [Member] | Natural Gas [Member]
Revenue from Contract with Customer, Including Assessed Tax		206		458	181
Third Party Sales [Member] | Natural Gas [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Third Party Sales [Member] | Natural Gas [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Third Party Sales [Member] | Natural Gas [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		206	[3]	458	181	[3]
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		892		2,152	2,003
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		892	[3]	2,152	2,003	[3]
Sales to Affiliates [Member] | Natural Gas [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Sales to Affiliates [Member] | Natural Gas [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(984)		(1,243)	(886)
Sales to Affiliates [Member] | Natural Gas [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Sales to Affiliates [Member] | Natural Gas [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		984	[3]	1,243	886	[3]
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(114)		(151)	(265)
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		0		0	0
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | PSEG Power & Other | Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 114	[3]	$ 151	$ 265	[3]
June 2023 to May 2024 [Member] | PJM [Member] | PSEG Power LLC [Member]
Dollars Per Megawatt-Day | $ / mwd		50
Load (MW) | MW		3,700
June 2024 to May 2025 | PJM [Member] | PSEG Power LLC [Member]
Dollars Per Megawatt-Day | $ / mwd		55
Load (MW) | MW		3,500

[1] Includes primarily alternative revenues at PSE&G principally from the CIP program in 2022 and 2023 and net realized and unrealized gains (losses) on derivative contracts and lease contracts at PSEG Power & Other.

[2] Intercompany eliminations primarily relate to intercompany transactions between PSE&G and PSEG Power. For a further discussion of the intercompany transactions between PSE&G and PSEG Power, see Note 24. Related-Party Transactions.

[3] Includes revenues applicable to PSEG Power, PSEG LI and Energy Holdings.

[4] Includes primarily revenues from appliance repair services and the sale of solar renewable energy credits (SRECs) at auction at PSE&G. PSEG Power & Other includes PSEG Power’s energy management fee with LIPA and PSEG LI’s OSA with LIPA.