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Debt and Credit Facilities Debt and Credit Facilities (Short-Term Liquidity) (Details) - USD ($) $ in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 31, 2022 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Commercial Paper |  |  | $ 3,313 |  | $ 3,519
Commitments of Single Institution as Percentage of Total Commitments |  |  | 9.00% |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 3,387 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 4,050 |  |
Line of Credit Facility, Fair Value of Amount Outstanding | [1] |  | 663 |  |
Proceeds from Short-Term Loan |  |  | 2,000 | $ 1,250 |
Repayments of Short-term Debt |  |  | 1,250 | 300 |
Collateral Already Posted, Aggregate Fair Value |  |  | 2,088 |  | 844
Net Change in Commercial Paper and Loans |  |  | (956) | (563) |
Public Service Electric and Gas Company [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 982 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 1,000 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 18 |  |
Net Change in Commercial Paper and Loans |  |  | 0 | (100) |
PSEG Power [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 970 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 1,550 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 580 |  |
Collateral Already Posted, Aggregate Fair Value |  |  | 2,100 | $ 343 |
PSEG Power [Member] | Subsequent Event [Member] |  |  |  |  |
Collateral Already Posted, Aggregate Fair Value |  | $ 2,500 |  |  |
Five Year Credit Facility Maturing March 2023 [Member] | Public Service Electric and Gas Company [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 982 |  |
Debt Instrument, Maturity Date, Description |  |  | Mar 2027 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 1,000 |  | 600
Line of Credit Facility, Fair Value of Amount Outstanding | [1] |  | 18 |  |
Five Year Credit Facility Maturing March 2023 [Member] | PSEG Power [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 944 |  |
Debt Instrument, Maturity Date, Description |  |  | Mar 2027 |  |
Line of Credit Facility, Maximum Borrowing Capacity | [2] |  | $ 1,250 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 306 |  |
Five Year Credit Facility Maturing March 2023 [Member] | Parent and PSEG Power |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 2,750 |  | $ 3,400
Letter of Credit Facilities expiring September 2022 | PSEG Power [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 1 |  |
Debt Instrument, Maturity Date, Description |  |  | Sept 2023 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 100 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 99 |  |
Letter of Credit Facilities expiring April 2024 | PSEG Power [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 25 |  |
Debt Instrument, Maturity Date, Description |  |  | Apr 2024 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 100 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 75 |  |
Letter of Credit Facilities expiring April 2025 | PSEG Power [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 0 |  |
Debt Instrument, Maturity Date, Description |  |  | Apr 2025 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 100 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 100 |  |
March 2021 Term Loan |  |  |  |  |
Repayments of Short-term Debt |  |  | 500 |  |
May 2021 Term Loan |  |  |  |  |
Repayments of Short-term Debt |  |  | 750 |  |
August 2021 Term Loan | Subsequent Event [Member] |  |  |  |  |
Repayments of Short-term Debt |  | $ 1,250 |  |  |
April 2022 Term Loan |  |  |  |  |
Proceeds from Short-Term Loan |  |  | 1,500 |  |
May 2022 Term Loan |  |  |  |  |
Proceeds from Short-Term Loan |  |  | 500 |  |
PSEG [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 1,435 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 1,500 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | 65 |  |
PSEG [Member] | Five Year Credit Facility Maturing March 2023 [Member] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 1,435 |  |
Debt Instrument, Maturity Date, Description |  |  | Mar 2027 |  |
Line of Credit Facility, Maximum Borrowing Capacity | [2] |  | $ 1,500 |  |
Line of Credit Facility, Fair Value of Amount Outstanding | [1] |  | 65 |  |
PSEG [Member] | Five Year Credit Facility Maturing March 2023 [Member] |  |  |  |  |
Commercial Paper |  |  | $ 63 |  |
Short-term Debt, Weighted Average Interest Rate, at Point in Time |  |  | 1.25% |  |
[1] | The primary use of PSEG’s and PSE&G’s credit facilities is to support their respective Commercial Paper Programs, under which as of June 30, 2022, PSEG had $63 million outstanding at a weighted average interest rate of 1.25%. PSE&G had no Commercial Paper outstanding as of June 30, 2022.
[2] | Master Credit Facility with sub-limits of $1.5 billion for PSEG and $1.25 billion for PSEG Power.

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