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Revenues Revenues (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) $ / mwd MW | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2019 USD ($) $ / mwd MW | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Revenues [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on Lease Investments included in Revenues |  |  |  |  |  |  |  |  |  |  | $ 8 |  |
Loss on Lease Investments included in Revenues |  |  |  |  |  |  |  |  |  |  | 20 | $ 77 |
Provision for Loan and Lease Losses |  |  |  |  |  |  |  |  |  | $ 58 |  | 7 |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 9,308 | 9,337 | 8,347 |
Revenues Unrelated to Contracts with Customers | [1] |  |  |  |  |  |  |  |  | 768 | 359 | 747 |
Operating Revenues |  | $ 2,478 | $ 2,302 | $ 2,316 | $ 2,980 | $ 2,468 | $ 2,394 | $ 2,016 | $ 2,818 | 10,076 | 9,696 | 9,094 |
Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 6,559 | 6,398 | 6,259 |
Revenues Unrelated to Contracts with Customers |  |  |  |  |  |  |  |  |  | 66 | 73 | 65 | [1]
Operating Revenues |  |  |  |  |  |  |  |  |  | $ 6,625 | $ 6,471 | 6,324 |
Allowances percentage of accounts receivable |  | 6.00% |  |  |  | 7.00% |  |  |  | 6.00% | 7.00% |  |
PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | $ 3,666 | $ 3,899 | 3,133 |
Revenues Unrelated to Contracts with Customers |  |  |  |  |  |  |  |  |  | 719 | 247 | 727 | [1]
Operating Revenues |  |  |  |  |  |  |  |  |  | 4,385 | 4,146 | 3,860 |
Revenue, remaining performance obligation, amount |  | $ 168 |  |  |  |  |  |  |  | 168 |  |  |
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 566 | 532 | 511 |
Revenues Unrelated to Contracts with Customers |  |  |  |  |  |  |  |  |  | (17) | 39 | (45) | [1]
Operating Revenues |  |  |  |  |  |  |  |  |  | 549 | 571 | 466 |
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | (1,483) | (1,492) | (1,556) |
Revenues Unrelated to Contracts with Customers |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | [1]
Operating Revenues |  |  |  |  |  |  |  |  |  | (1,483) | (1,492) | (1,556) |
LIPA OSA contract fixed component [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, remaining performance obligation, amount |  | $ 67 |  |  |  |  |  |  |  | 67 |  |  |
Electric Distribution Contracts [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 3,224 | 3,131 | 3,088 |
Electric Distribution Contracts [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 3,224 | 3,131 | 3,088 |
Electric Distribution Contracts [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Electric Distribution Contracts [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Electric Distribution Contracts [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Gas Distribution Contracts [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,855 | 1,738 | 1,670 |
Gas Distribution Contracts [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,870 | 1,756 | 1,684 |
Gas Distribution Contracts [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Gas Distribution Contracts [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Gas Distribution Contracts [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | (15) | (18) | (14) |
Transmission [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,181 | 1,236 | 1,222 |
Transmission [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,181 | 1,236 | 1,222 |
Transmission [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Transmission [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Transmission [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Other Contract Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [2] |  |  |  |  |  |  |  |  | 891 | 847 | 814 |
Other Contract Revenues [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 284 | 275 | 265 | [2]
Other Contract Revenues [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 46 | 44 | 42 | [2]
Other Contract Revenues [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 566 | 532 | 511 | [2]
Other Contract Revenues [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | (5) | (4) | (4) | [2]
ISO New England [Member] | Electricity and Related Products [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 137 | 92 | 39 |
ISO New England [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
ISO New England [Member] | Electricity and Related Products [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 137 | 92 | 39 |
ISO New England [Member] | Electricity and Related Products [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
ISO New England [Member] | Electricity and Related Products [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
NY ISO [Member] | Electricity and Related Products [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 143 | 209 | 181 |
NY ISO [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
NY ISO [Member] | Electricity and Related Products [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 143 | 209 | 181 |
NY ISO [Member] | Electricity and Related Products [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
NY ISO [Member] | Electricity and Related Products [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 92 | 151 | 134 |
Third Party Sales [Member] | Natural Gas [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | Natural Gas [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 92 | 151 | 134 |
Third Party Sales [Member] | Natural Gas [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | Natural Gas [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,785 | 1,933 | 1,199 |
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 1,785 | 1,933 | 1,199 |
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Third Party Sales [Member] | PJM [Member] | Electricity and Related Products [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | Natural Gas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | Natural Gas [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | Natural Gas [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 927 | 861 | 804 |
Sales to Affiliates [Member] | Natural Gas [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | Natural Gas [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | (927) | (861) | (804) |
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 536 | 609 | 734 |
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Sales to Affiliates [Member] | PJM [Member] | Electricity and Related Products [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  |  | $ (536) | $ (609) | $ (734) |
June 2019 to May 2020 [Member] | PJM [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 116 |  |  |  |  |  |  |  | 116 |  |  |
Load (MW) | MW |  | 8,300 |  |  |  |  |  |  |  | 8,300 |  |  |
June 2019 to May 2020 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  |  |  |  |  |  |  | 231 |  |  |
Load (MW) | MW |  | 1,330 |  |  |  |  |  |  |  | 1,330 |  |  |
June 2020 to May 2021 [Member] | PJM [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 179 |  |  |  |  |  |  |  | 179 |  |  |
Load (MW) | MW |  | 7,300 |  |  |  |  |  |  |  | 7,300 |  |  |
June 2020 to May 2021 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 195 |  |  |  |  |  |  |  | 195 |  |  |
Load (MW) | MW |  | 1,330 |  |  |  |  |  |  |  | 1,330 |  |  |
June 2021 to May 2022 [Member] | PJM [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 182 |  |  |  |  |  |  |  | 182 |  |  |
Load (MW) | MW |  | 6,900 |  |  |  |  |  |  |  | 6,900 |  |  |
June 2021 to May 2022 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 192 |  |  |  |  |  |  |  | 192 |  |  |
Load (MW) | MW |  | 950 |  |  |  |  |  |  |  | 950 |  |  |
June 2022 to May 2023 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 179 |  |  |  |  |  |  |  | 179 |  |  |
Load (MW) | MW |  | 950 |  |  |  |  |  |  |  | 950 |  |  |
June 2023 to May 2024 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  |  |  |  |  |  |  | 231 |  |  |
Load (MW) | MW |  | 480 |  |  |  |  |  |  |  | 480 |  |  |
June 2024 to May 2025 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  |  |  |  |  |  |  | 231 |  |  |
Load (MW) | MW |  | 480 |  |  |  |  |  |  |  | 480 |  |  |
June 2025 to May 2026 [Member] | ISO New England [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  |  |  |  |  |  |  | 231 |  |  |
Load (MW) | MW |  | 480 |  |  |  |  |  |  |  | 480 |  |  |
[1] | Includes primarily alternative revenues at PSE&G, derivative contracts at PSEG Power, and lease contracts in Other. For the years ended December 31, 2019, 2018 and 2017, Other includes losses of $58 million, $8 million and $77 million, respectively, related to Energy Holdings’ investments in leases. For additional information, see Note 9. Long-Term Investments.
[2] | Includes primarily revenues from appliance repair services at PSE&G, solar power projects and energy management and fuel service contracts with LIPA at PSEG Power, and PSEG LI’s OSA with LIPA in Other.

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