v3.26.1
Related-Party Transactions - Schedule of Related Party Transactions, Revenue (Details) - Public Service Electric and Gas Company [Member] - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Related Party Transaction [Line Items]    
Net Billings from Power primarily through BGS and BGSS [1] $ 653 $ 532
Administrative Billings from Services [2] 150 117
Total Billings from Affiliates $ 803 $ 649
[1] 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. In addition, PSEG Power sold ZECs to PSE&G from its nuclear units under the ZEC program as approved by the BPU. The rates in the BGSS contract and for the ZEC sales were prescribed by the BPU. BGSS sales were billed and settled on a monthly basis. ZEC sales were billed on a monthly basis and settled annually following completion of each energy year. The ZEC program ended effective June 1, 2025, with the final ZEC payment from PSE&G to PSEG Power settled in August 2025. For additional information on ZECs, see Note 2. Revenues. 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.
[2] 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.