Debt and Credit Facilities (Long-Term Debt Maturities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Repayments in Next Twelve Months	$ 1,575
Repayments in Year Two	1,500
Repayments in Year Three	2,150
Repayments in Year Four	875
Repayments in Year Five	1,125
Thereafter	10,961
Long-term Debt	18,186
Public Service Electric and Gas Company
Debt Instrument [Line Items]
Long-term Debt	12,790	$ 11,890
PSEG Power LLC [Member]
Debt Instrument [Line Items]
Long-term Debt	1,250	0
PSEG [Member]
Debt Instrument [Line Items]
Repayments in Next Twelve Months	750
Repayments in Year Two	750
Repayments in Year Three	550
Repayments in Year Four	0
Repayments in Year Five	700
Thereafter	1,396
Long-term Debt	4,146	$ 4,146
Public Service Electric and Gas Company
Debt Instrument [Line Items]
Repayments in Next Twelve Months	825
Repayments in Year Two	750
Repayments in Year Three	350
Repayments in Year Four	875
Repayments in Year Five	425
Thereafter	9,565
Long-term Debt	12,790
PSEG Power LLC [Member]
Debt Instrument [Line Items]
Repayments in Next Twelve Months	0
Repayments in Year Two	0
Repayments in Year Three	1,250
Repayments in Year Four	0
Repayments in Year Five	0
Thereafter	0
Long-term Debt	$ 1,250

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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