Net Other Income (Deductions) - Schedule of Net Other Income (Deductions) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Component of Other Income (Deductions) [Line Items]
Total Other Income and Deductions		$ 153	$ 172	$ 124
Public Service Electric and Gas Company [Member]
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		0	0	0
Allowance for Funds Used During Construction		41	60	65
Solar Loan Interest		5	7	10
Other Interest		9	12	9
Purchases of Tax Losses under New Jersey Technology Tax Benefit Transfer Program				0
Other		9	1	4
Total Other Income and Deductions		64	80	88
PSEG Power & Other
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends	[1]	81	68	62
Allowance for Funds Used During Construction	[1]	0	0	0
Solar Loan Interest	[1]	0	0	0
Other Interest	[1]	18	34	12
Purchases of Tax Losses under New Jersey Technology Tax Benefit Transfer Program	[1]			(27)
Other	[1]	(10)	(10)	(11)
Total Other Income and Deductions	[1]	89	92	36
PSEG Power
Component of Other Income (Deductions) [Line Items]
NDT Fund Interest and Dividends		81	68	62
Allowance for Funds Used During Construction		41	60	65
Solar Loan Interest		5	7	10
Other Interest		27	46	21
Purchases of Tax Losses under New Jersey Technology Tax Benefit Transfer Program				(27)
Other		(1)	(9)	(7)
Total Other Income and Deductions		$ 153	$ 172	$ 124

[1] PSEG Power & Other consists of activity at PSEG Power, Energy Holdings, PSEG LI, Services, PSEG (parent company) and intercompany eliminations.