Commitments and Contingent Liabilities - Litigation - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Sherman Act Antitrust Matter [Member]
Loss Contingencies [Line Items]
Description of defendants	In July 2025, a putative class action complaint was filed in the United States District Court for the District of Maryland against 26 nuclear generation power companies, including PSEG, and two consulting companies.
PSEG Power | Sewaren 7 Litigation [Member]
Loss Contingencies [Line Items]
Original Claim Amount	$ 93
PSEG Power | Sewaren 7 Litigation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Complaint amount	$ 68