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Debt and Credit Facilities - Long-Term Debt (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 21,261 |
Long-term Debt, Current Maturities |  | (2,150) | $ (1,500)
Total Long-Term Debt |  | 18,964 | 17,784
PSEG [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | 4,896 | 4,396
Long-term Debt, Current Maturities |  | (550) | (750)
Net Unamortized Discount and Debt Issuance Costs |  | (30) | (25)
Total Long-Term Debt |  | 4,316 | 3,621
PSEG [Member] | Senior Notes Two Point Eight Eight Percent Due in Two Thousand Twenty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 0 | 750
Stated interest rate of debt instrument |  | 2.88% |
PSEG [Member] | Senior Notes Zero Point Eight Zero Percent Due in Two Thousand Twenty Five [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 550 | 550
Stated interest rate of debt instrument |  | 0.80% |
PSEG [Member] | Senior Notes Five Point Eight Five Percent Due in Two Thousand Twenty Seven [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 700 | 700
Stated interest rate of debt instrument |  | 5.85% |
PSEG [Member] | Senior Notes Five Point Eight Eight Percent Due Two Thousand Twenty Eight [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 600 | 600
Stated interest rate of debt instrument |  | 5.88% |
PSEG [Member] | Senior Notes Five Point Two Zero Percent Due Two Thousand Twenty Nine [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 750 | 0
Stated interest rate of debt instrument |  | 5.20% |
PSEG [Member] | Senior Notes One Point Six Zero Percent Due In Two Thousand Thirty [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 550 | 550
Stated interest rate of debt instrument |  | 1.60% |
PSEG [Member] | Senior Notes Eight Point Six Three Percent Due In Two Thousand Thirty One [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 96 | 96
Stated interest rate of debt instrument |  | 8.63% |
PSEG [Member] | Senior Notes Two Point Four Five Percent Due In Two Thousand Thirty One [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 750 | 750
Stated interest rate of debt instrument |  | 2.45% |
PSEG [Member] | Senior Notes Six Point One Three Percent Due Two Thousand Thirty Three [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 400 | 400
Stated interest rate of debt instrument |  | 6.13% |
PSEG [Member] | Senior Notes Five Point Four Five Percent Due Two Thousand Thirty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 500 | 0
Stated interest rate of debt instrument |  | 5.45% |
PSEG [Member] | Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 4,896 | 4,396
Public Service Electric and Gas Company [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | 15,115 | 13,765
Long-term Debt, Current Maturities |  | (350) | (750)
Net Unamortized Discount and Debt Issuance Costs |  | (117) | (102)
Total Long-Term Debt |  | 14,648 | 12,913
Public Service Electric and Gas Company [Member] | First And Refunding Mortgage Bonds Eight Point Zero Zero Percentage Due On Two Thirty Seven [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 7 | 7
Stated interest rate of debt instrument |  | 8.00% |
Public Service Electric and Gas Company [Member] | First And Refunding Mortgage Bonds Five Point Zero Zero Percentage Due On Two Thirty Seven [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 8 | 8
Stated interest rate of debt instrument |  | 5.00% |
Public Service Electric and Gas Company [Member] | First And Refunding Mortgage Bonds [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 15 | 15
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Seven Five Percent Due In Two Thousand Twenty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 0 | 250
Stated interest rate of debt instrument |  | 3.75% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point One Five Percent Due In Two Thousand Twenty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 0 | 250
Stated interest rate of debt instrument |  | 3.15% |
Public Service Electric and Gas Company [Member] | Medium-Term Notes Three Point Zero Five Percent Due in Two Thousand Twenty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 0 | 250
Stated interest rate of debt instrument |  | 3.05% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Zero Zero Percent Due In Two Thousand Twenty Five [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 350 | 350
Stated interest rate of debt instrument |  | 3.00% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Zero Point Nine Five Percent Due In Two Thousand Twenty Six [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 450 | 450
Stated interest rate of debt instrument |  | 0.95% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Two Point Two Five Percent due Two Thousand Twenty Six [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 425 | 425
Stated interest rate of debt instrument |  | 2.25% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Zero Percent due Two Thousand Twenty Seven [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 425 | 425
Stated interest rate of debt instrument |  | 3.00% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Seven Zero Percent due Two Thousand Twenty Eight [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 375 | 375
Stated interest rate of debt instrument |  | 3.70% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Six Five Percent due Two Thousand Twenty Eight [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 325 | 325
Stated interest rate of debt instrument |  | 3.65% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Three Point Two Zero Percent due Two Thousand Twenty NIne [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 375 | 375
Stated interest rate of debt instrument |  | 3.20% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Two Point Four Five due Two Thousand Thirty [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 300 | 300
Stated interest rate of debt instrument |  | 2.45% |
Public Service Electric and Gas Company [Member] | Medium Term Notes One Point Nine Zero due Two Thousand Thirty One [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 425 | 425
Stated interest rate of debt instrument |  | 1.90% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Green Bond Three Point One Zero due Two Thousand Thirty Two [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 500 | 500
Stated interest rate of debt instrument |  | 3.10% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Four Point Nine Zero due Two Thousand Thirty Two [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 400 | 400
Stated interest rate of debt instrument |  | 4.90% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Green Bond Four Point Six Five Percent due Two Thousand Thirty Three [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 500 | 500
Stated interest rate of debt instrument |  | 4.65% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Two Zero Percent due Two Thousand Thirty Three [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 500 | 500
Stated interest rate of debt instrument |  | 5.20% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Green Bond Five Point Two Zero Percent due Two Thousand Thirty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 450 | 0
Stated interest rate of debt instrument |  | 5.20% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Green Bond Four Point Eight Five Percent Due Two Thousand Thirty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 600 | 0
Stated interest rate of debt instrument |  | 4.85% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Two Five Percentage Due On Two Thousand Thirty Five [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 5.25% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Seven Zero Percentage Due On Two Thousand Thirty Six [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 5.70% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Eight Zero Percentage Due On Two Thousand Thirty Seven [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 350 | 350
Stated interest rate of debt instrument |  | 5.80% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Three Eight Percentage Due On Two Thousand Thirty Nine [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 5.38% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Five Zero Percentage Due On Two Thousand Forty [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 300 | 300
Stated interest rate of debt instrument |  | 5.50% |
Public Service Electric and Gas Company [Member] | Medium-Term Notes 3.95% Due on 2042 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 450 | 450
Stated interest rate of debt instrument |  | 3.95% |
Public Service Electric and Gas Company [Member] | Medium-Term Notes 3.65% Due on 2042 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 350 | 350
Stated interest rate of debt instrument |  | 3.65% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.80% Due In 2043 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 400 | 400
Stated interest rate of debt instrument |  | 3.80% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 4.00% Due in 2044 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 4.00% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 4.05% due 2045 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 4.05% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 4.15% Due In 2045 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 250 | 250
Stated interest rate of debt instrument |  | 4.15% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.80% due 2046 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 550 | 550
Stated interest rate of debt instrument |  | 3.80% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.60% due 2047 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 350 | 350
Stated interest rate of debt instrument |  | 3.60% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 4.05% due 2048 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 325 | 325
Stated interest rate of debt instrument |  | 4.05% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.85% due 2049 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 375 | 375
Stated interest rate of debt instrument |  | 3.85% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.20% due 2049 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 400 | 400
Stated interest rate of debt instrument |  | 3.20% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.15% due 2050 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 300 | 300
Stated interest rate of debt instrument |  | 3.15% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 2.70% due 2050 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 375 | 375
Stated interest rate of debt instrument |  | 2.70% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 2.05% due 2050 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 375 | 375
Stated interest rate of debt instrument |  | 2.05% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 3.00% due 2051 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 450 | 450
Stated interest rate of debt instrument |  | 3.00% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 5.13% due 2053 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 400 | 400
Stated interest rate of debt instrument |  | 5.13% |
Public Service Electric and Gas Company [Member] | Medium Term Notes 5.45% due 2053 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 400 | 400
Stated interest rate of debt instrument |  | 5.45% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Four Five Percent due Two Thousand Fifty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 550 | 0
Stated interest rate of debt instrument |  | 5.45% |
Public Service Electric and Gas Company [Member] | Medium Term Notes Five Point Three Zero Percent due Two Thousand Fifty Four [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt | [1] | $ 500 | 0
Stated interest rate of debt instrument |  | 5.30% |
Public Service Electric and Gas Company [Member] | Total Medium Term Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 15,100 | 13,750
PSEG Power LLC [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | 1,250 | 1,250
Long-term Debt, Current Maturities |  | (1,250) | 0
Total Long-Term Debt |  | 0 | 1,250
PSEG Power LLC [Member] | Senior Notes Three Point Eight Five Percent due Two Thousand Twenty Three [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | $ 1,250 | $ 1,250
[1] | Secured by essentially all property of PSE&G pursuant to its First and Refunding Mortgage.

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-4 + Details
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