Related-Party Transactions (Schedule Of Related Party Transactions, Payables) (Detail) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Accounts Payable		$ 1,120	$ 1,271
Accounts Receivable, net of allowance		1,417	1,944
Public Service Electric and Gas Company [Member]
Related Party Transaction [Line Items]
Working Capital Advances to Services	[1]	33	33
Public Service Electric and Gas Company [Member] | PSEG Power [Member]
Related Party Transaction [Line Items]
Accounts Payable	[2]	106	313
Public Service Electric and Gas Company [Member] | PSEG Parent
Related Party Transaction [Line Items]
Accounts Payable	[3]	0	74
Accounts Receivable, net of allowance		20	0
Public Service Electric and Gas Company [Member] | PSEG Services
Related Party Transaction [Line Items]
Accounts Payable	[4]	63	98
Public Service Electric and Gas Company [Member] | Related Party
Related Party Transaction [Line Items]
Accounts Payable		169	485
Accounts Payable and Accrued Liabilities, Noncurrent		9	9
Accounts Receivable, net of allowance		$ 20	$ 0

[1] PSE&G has advanced working capital to Services. The amount is included in Other Noncurrent Assets on PSE&G’s Condensed Consolidated Balance Sheets.

[2] PSE&G has entered into a requirements contract with PSEG Power under which PSEG Power provides the gas supply services needed to meet PSE&G’s BGSS and other contractual requirements. Since June 1, 2022, PSEG Power had no contracts to supply energy, capacity and ancillary services to PSE&G through the BGS auction process. In addition, PSEG Power sells ZECs to PSE&G from its nuclear units under the ZEC program as approved by the BPU. The rates in the BGS and BGSS contracts and for the ZEC sales are prescribed by the BPU. BGS and BGSS sales are billed and settled on a monthly basis. ZEC sales are billed on a monthly basis and settled annually following completion of each energy year. In addition, PSEG Power and PSE&G provide certain technical services for each other generally at cost in compliance with FERC and BPU affiliate rules.

[3] PSEG files a consolidated federal income tax return with its affiliated companies. A tax allocation agreement exists between PSEG and each of its affiliated companies. The general operation of these agreements is that the subsidiary company will compute its taxable income on a stand-alone basis. If the result is a net tax liability, such amount shall be paid to PSEG. If there are NOLs and/or tax credits, the subsidiary shall receive payment for the tax savings from PSEG to the extent that PSEG is able to utilize those benefits. In addition, PSEG pays all payroll taxes and receives reimbursement from its affiliated companies for their respective portions.

[4] Services provides and bills administrative services to PSE&G at cost. In addition, PSE&G has other payables to Services, including amounts related to certain common costs, which Services pays on behalf of PSE&G.