Revenues Revenues (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023 USD ($) $ / mwd MW	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) $ / mwd MW	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Revenues [Line Items]
Revenue from Contract with Customers		$ 1,991	$ 2,348	$ 4,700	$ 5,628
Revenues Unrelated to Contracts with Customers	[1]	430	(272)	1,476	(1,239)
Total Operating Revenues		2,421	2,076	6,176	4,389
Regulatory Assets		4,813		4,813		$ 4,404
Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		(143)	(237)	(708)	(821)
Revenues Unrelated to Contracts with Customers	[1]	0	0	0	0
Total Operating Revenues	[2]	(143)	(237)	(708)	(821)
Electric Distribution Contracts [Member]
Revenues [Line Items]
Revenue from Contract with Customers		784	836	1,514	1,556
Electric Distribution Contracts [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Gas Distribution [Member]
Revenues [Line Items]
Revenue from Contract with Customers		274	317	1,233	1,363
Gas Distribution [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	(1)
Electric Transmission [Member]
Revenues [Line Items]
Revenue from Contract with Customers		447	396	872	788
Electric Transmission [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers		211	475	487	1,057
Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		(27)	(35)	(58)	(91)
Electricity and Related Products [Member] | NY ISO [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	88
Electricity and Related Products [Member] | NY ISO [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Electricity and Related Products [Member] | ISO New England [Member]
Revenues [Line Items]
Revenue from Contract with Customers		3	3	6	89
Electricity and Related Products [Member] | ISO New England [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Gas Sales [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers		26	77	112	213
Gas Sales [Member] | Third Party Sales [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Gas Sales [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Gas Sales [Member] | Sales to Affiliates [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers		(115)	(202)	(648)	(728)
Other Revenues from Contracts with Customers [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[3]	246	244	476	474
Other Revenues from Contracts with Customers [Member] | Eliminations [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[3]	(1)	0	(2)	(1)
Public Service Electric and Gas Company [Member]
Revenues [Line Items]
Revenue from Contract with Customers		1,599	1,643	3,791	3,887
Revenues Unrelated to Contracts with Customers	[1]	63	25	164	65
Total Operating Revenues		$ 1,662	1,668	$ 3,955	3,952
Allowances percentage of accounts receivable		20.00%		20.00%		20.00%
Public Service Electric and Gas Company [Member] | Electric Distribution Contracts [Member]
Revenues [Line Items]
Revenue from Contract with Customers		$ 784	836	$ 1,514	1,556
Public Service Electric and Gas Company [Member] | Gas Distribution [Member]
Revenues [Line Items]
Revenue from Contract with Customers		274	317	1,233	1,364
Public Service Electric and Gas Company [Member] | Electric Transmission [Member]
Revenues [Line Items]
Revenue from Contract with Customers		447	396	872	788
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | NY ISO [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | ISO New England [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Gas Sales [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Gas Sales [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers		0	0	0	0
Public Service Electric and Gas Company [Member] | Other Revenues from Contracts with Customers [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[3]	94	94	172	179
PSEG Power [Member]
Revenues [Line Items]
Anticipated Contract Revenues		$ 27		$ 27
PSEG Power [Member] | PJM [Member] | June 2023 to May 2024 [Member]
Revenues [Line Items]
Dollars Per Megawatt-Day | $ / mwd		50		50
Load (MW) | MW		3,700		3,700
PSEG Power [Member] | PJM [Member] | June 2024 to May 2025
Revenues [Line Items]
Dollars Per Megawatt-Day | $ / mwd		55		55
Load (MW) | MW		3,500		3,500
Other [Member] | LIPA OSA contract fixed component [Member]
Revenues [Line Items]
Anticipated Contract Revenues		$ 42		$ 42
PSEG Power & Other
Revenues [Line Items]
Revenue from Contract with Customers	[4]	535	942	1,617	2,562
Revenues Unrelated to Contracts with Customers	[1],[4]	367	(297)	1,312	(1,304)
Total Operating Revenues	[4]	902	645	2,929	1,258
PSEG Power & Other | Electric Distribution Contracts [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	0	0	0	0
PSEG Power & Other | Gas Distribution [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	0	0	0	0
PSEG Power & Other | Electric Transmission [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	0	0	0	0
PSEG Power & Other | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	211	475	487	1,057
PSEG Power & Other | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	27	35	58	91
PSEG Power & Other | Electricity and Related Products [Member] | NY ISO [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	0	0	0	88
PSEG Power & Other | Electricity and Related Products [Member] | ISO New England [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	3	3	6	89
PSEG Power & Other | Gas Sales [Member] | Third Party Sales [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	26	77	112	213
PSEG Power & Other | Gas Sales [Member] | Sales to Affiliates [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[4]	115	202	648	728
PSEG Power & Other | Other Revenues from Contracts with Customers [Member]
Revenues [Line Items]
Revenue from Contract with Customers	[3],[4]	153	150	306	296
Public Service Electric and Gas Company [Member]
Revenues [Line Items]
Total Operating Revenues		1,662	1,668	3,955	3,952
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses		319	351	339	337
Provision for Other Credit Losses		15	6	24	39
Accounts Receivable, Allowance for Credit Loss, Writeoff		(40)	(22)	(69)	(41)
Accounts Receivable, Allowance for Credit Loss, Recovery		6	14	13	22
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses		294	335	294	335
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses		294	$ 335	294	$ 335	$ 339
Regulatory Assets		4,813		4,813		$ 4,404
Public Service Electric and Gas Company [Member] | COVID-19 Deferral - Bad Debt portion
Revenues [Line Items]
Regulatory Assets		68		68
Public Service Electric and Gas Company [Member] | Societal Benefits Charges Sbc | Electric Bad Debt Deferral
Revenues [Line Items]
Regulatory Assets		$ 137		$ 137

[1] Includes primarily alternative revenues at PSE&G principally from the CIP program and 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 19. Related-Party Transactions.

[3] 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 LI’s OSA with LIPA and PSEG Power’s energy management fee with LIPA.

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