Asset Retirement Obligations (AROs) - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Asset Retirement Obligation [Line Items]
Revision to Present Values of Estimated Cash Flows	$ (7)	$ (85)
PSEG Power
Asset Retirement Obligation [Line Items]
Revision to Present Values of Estimated Cash Flows	59	99
PSE&G
Asset Retirement Obligation [Line Items]
Revision to Present Values of Estimated Cash Flows	52	$ 14
Impact of change in ARO in operations	$ 0