Debt and Credit Facilities - Schedule of Line of Credit Facilities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Available Liquidity	$ 2,511	[1]
Total Facility	3,825	[1]
Usage (B)	1,314	[1],[2]
Public Service Electric and Gas Company [Member]
Debt Instrument [Line Items]
Available Liquidity	532
Total Facility	1,000
Usage (B)	468	[2]
Public Service Electric and Gas Company [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available Liquidity	532
Total Facility	1,000
Usage (B)	$ 468	[2]
Expiration Date	Mar 2028
PSEG Power
Debt Instrument [Line Items]
Available Liquidity	$ 1,243
Total Facility	1,325
Usage (B)	82	[2]
PSEG Power | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available Liquidity	1,213	[3]
Total Facility	1,250	[3]
Usage (B)	$ 37	[2],[3]
Expiration Date	Mar 2028	[3]
PSEG Power | Letter Of Credit Facilities expiring April 2026 [Member]
Debt Instrument [Line Items]
Available Liquidity	$ 30
Total Facility	75
Usage (B)	$ 45	[2]
Expiration Date	Apr 2026
Revolving Credit Facility [Member] | PSEG Power
Debt Instrument [Line Items]
Total Facility	$ 1,250
PSEG [Member]
Debt Instrument [Line Items]
Available Liquidity	736
Total Facility	1,500
Usage (B)	764	[2]
PSEG [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available Liquidity	736	[3]
Total Facility	1,500	[3]
Usage (B)	$ 764	[2],[3]
Expiration Date	Mar 2028	[3]
PSEG [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total Facility	$ 1,500

[1] Amounts do not include uncommitted credit facilities or 364-day term loans, if any apply.

[2] The primary use of PSEG’s and PSE&G’s credit facilities is to support their respective Commercial Paper Programs, under which as of December 31, 2024, PSEG had $749 million outstanding commercial paper at a weighted average interest rate of 4.78% and PSE&G had $444 million commercial paper outstanding at a weighted average interest rate of 4.71%.

[3] Master Credit Facility with sub-limits of $1.5 billion for PSEG and $1.25 billion for PSEG Power; sub-limits can be adjusted pursuant to the terms of the Master Credit Facility agreement. The PSEG sub-limit includes a sustainability linked pricing based mechanism with potential increases or decreases, which are not expected to be material, depending on performance relative to targeted methane emission reductions.