Revenues (Details) $ in Millions		12 Months Ended
		Dec. 31, 2022 USD ($) $ / mwd MW	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Lease losses included in Revenues			$ 9	$ 26
Revenue from Contract with Customer, Including Assessed Tax		$ 11,231	10,315	9,099
Revenues Unrelated to Contracts with Customers	[1]	(1,431)	(593)	504
Operating Revenues		9,800	9,722	9,603
Regulatory Assets		4,404	3,605
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(1,401)	(1,167)	(1,234)
Revenues Unrelated to Contracts with Customers	[1]	0	0	0
Operating Revenues	[2]	(1,401)	(1,167)	(1,234)
Public Service Electric and Gas Company
Operating Revenues		7,935	7,122	6,608
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses		339
Provision for Other Credit Losses		114	195
Accounts Receivable, Allowance for Credit Loss, Writeoff		(112)	(64)
Accounts Receivable, Allowance for Credit Loss, Recovery		46	17
Accounts Receivable, Allowance for Credit Loss		337
Regulatory Assets		4,773	3,969
Regulatory Assets		4,404	3,605
Public Service Electric and Gas Company | Societal Benefits Charges Sbc [Member]
Regulatory Assets		145	139
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		145
Public Service Electric and Gas Company | Cumulative Effect, Period of Adoption, Adjusted Balance
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses			337	206
Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax		7,839	7,108	6,599
Revenues Unrelated to Contracts with Customers	[1]	96	14	9
Operating Revenues		$ 7,935	$ 7,122	6,608
Allowances percentage of accounts receivable		20.00%	21.00%
PSEG Power LLC [Member]
Revenue, remaining performance obligation, amount		$ 36
PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	4,793	$ 4,374	3,734
Revenues Unrelated to Contracts with Customers	[1],[3]	(1,527)	(607)	495
Operating Revenues	[3]	3,266	3,767	4,229
LIPA OSA contract fixed component [Member] | Other [Member]
Revenue, remaining performance obligation, amount		42
Electric Distribution Contracts [Member]
Revenue from Contract with Customer, Including Assessed Tax		3,503	3,279	3,130
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
Revenue from Contract with Customer, Including Assessed Tax		3,503	3,279	3,130
Electric Distribution Contracts [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	0	0	0
Gas Distribution Contracts [Member]
Revenue from Contract with Customer, Including Assessed Tax		2,356	1,862	1,634
Gas Distribution Contracts [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		(1)	(13)	(12)
Gas Distribution Contracts [Member] | Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax		2,357	1,875	1,646
Gas Distribution Contracts [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	0	0	0
Transmission [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,589	1,611	1,485
Transmission [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
Transmission [Member] | Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax		1,589	1,611	1,485
Transmission [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	0	0	0
Other Contract Revenues [Member]
Revenue from Contract with Customer, Including Assessed Tax	[4]	989	960	966
Other Contract Revenues [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax	[4]	(6)	(3)	(4)
Other Contract Revenues [Member] | Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax	[4]	390	343	338
Other Contract Revenues [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3],[4]	605	620	632
ISO New England [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		96	172	126
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
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
ISO New England [Member] | Electricity and Related Products [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	96	172	126
NY ISO [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		88	247	124
NY ISO [Member] | Electricity and Related Products [Member] | Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
NY ISO [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
NY ISO [Member] | Electricity and Related Products [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	88	247	124
Third Party Sales [Member] | Natural Gas [Member]
Revenue from Contract with Customer, Including Assessed Tax		458	181	83
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
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
Third Party Sales [Member] | Natural Gas [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	458	181	83
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member]
Revenue from Contract with Customer, Including Assessed Tax		2,152	2,003	1,551
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
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
Revenue from Contract with Customer, Including Assessed Tax	[3]	2,152	2,003	1,551
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		(1,243)	(886)	(771)
Sales to Affiliates [Member] | Natural Gas [Member] | Public Service Electric and Gas Company
Revenue from Contract with Customer, Including Assessed Tax		0	0	0
Sales to Affiliates [Member] | Natural Gas [Member] | PSEG Power & Other
Revenue from Contract with Customer, Including Assessed Tax	[3]	1,243	886	771
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		(151)	(265)	(447)
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company
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
Revenue from Contract with Customer, Including Assessed Tax	[3]	$ 151	$ 265	$ 447
June 2022 to May 2023 [Member] | PJM [Member]
Dollars Per Megawatt-Day | $ / mwd		97
Load (MW) | MW		3,300
June 2023 to May 2024 [Member] | PJM [Member] | PSEG Power LLC [Member]
Dollars Per Megawatt-Day | $ / mwd		49
Load (MW) | MW		3,700

[1] Includes primarily alternative revenues at PSE&G principally from the CIP program in 2022 and derivative contracts and lease contracts at PSEG Power & Other. For the years ended December 31, 2021 and 2020, PSEG Power & Other includes losses of $9 million and $26 million, respectively, related to Energy Holdings’ investments in leases. For additional information, see Note 9. Long-Term Investments.

[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 26. 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 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. PSEG Power & Other also includes PSEG Power’s solar power projects in 2021 and 2020.