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Revenues Revenues (Details) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) $ / mwd MW | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) $ / mwd MW | Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) | Jan. 01, 2020 USD ($)
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | $ 2,164 | $ 2,025 | $ 5,018 |  | $ 4,474 |  |  |
Revenues Unrelated to Contracts with Customers |  | (290) | 25 | (255) | [1] | 357 | [1] |  |
Total Operating Revenues |  | 1,874 | 2,050 | 4,763 |  | 4,831 |  |  |
Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | (175) | (237) | (677) |  | (715) |  |  |
Revenues Unrelated to Contracts with Customers |  | 0 | 0 | 0 | [1] | 0 | [1] |  |
Total Operating Revenues | [2] | (175) | (237) | (677) |  | (715) |  |  |
Electric Distribution Contracts [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 765 | 723 | 1,472 |  | 1,372 |  |  |
Electric Distribution Contracts [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Gas Distribution [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 254 | 276 | 1,147 |  | 1,005 |  |  |
Gas Distribution [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | (2) | (2) | (5) |  | (4) |  |  |
Electric Transmission [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 405 | 378 | 804 |  | 744 |  |  |
Electric Transmission [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 408 | 346 | 879 |  | 714 |  |  |
Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | (62) | (111) | (150) |  | (232) |  |  |
Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 49 | 24 | 97 |  | 49 |  |  |
Electricity and Related Products [Member] | NY ISO [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 18 | 25 | 69 |  | 73 |  |  |
Electricity and Related Products [Member] | ISO New England [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 28 | 15 | 88 |  | 44 |  |  |
Gas Sales [Member] | Third Party Sales [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Gas Sales [Member] | Sales to Affiliates [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | (110) | (124) | (520) |  | (478) |  |  |
Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 237 | 238 | 462 | [3] | 473 | [3] |  |
Other Revenues from Contracts with Customers [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | (1) | 0 | (2) | [3] | (1) | [3] |  |
Public Service Electric and Gas Company [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 1,507 | 1,462 | 3,584 |  | 3,290 |  |  |
Revenues Unrelated to Contracts with Customers |  | 7 | (6) | 3 | [1] | 49 | [1] |  |
Total Operating Revenues |  | $ 1,514 | 1,456 | $ 3,587 |  | 3,339 |  |  |
Allowances percentage of accounts receivable |  | 18.00% |  | 18.00% |  |  |  | 14.00% |
Public Service Electric and Gas Company [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | $ 765 | 723 | $ 1,472 |  | 1,372 |  |  |
Public Service Electric and Gas Company [Member] | Gas Distribution [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 256 | 278 | 1,152 |  | 1,009 |  |  |
Public Service Electric and Gas Company [Member] | Electric Transmission [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 405 | 378 | 804 |  | 744 |  |  |
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Public Service Electric and Gas Company [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 81 | 83 | 156 | [3] | 165 | [3] |  |
PSEG Power [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 687 | 659 | 1,825 |  | 1,614 |  |  |
Revenues Unrelated to Contracts with Customers |  | (307) | 24 | (278) | [1] | 289 | [1] |  |
Total Operating Revenues |  | 380 | 683 | 1,547 |  | 1,903 |  |  |
Anticipated Contract Revenues |  | $ 138 |  | $ 138 |  |  |  |  |
PSEG Power [Member] | PJM [Member] | June 2021 to May 2022 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 166 |  | 166 |  |  |  |  |
Load (MW) | MW |  | 7,700 |  | 7,700 |  |  |  |  |
PSEG Power [Member] | PJM [Member] | June 2022 to May 2023 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 98 |  | 98 |  |  |  |  |
Load (MW) | MW |  | 6,300 |  | 6,300 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | June 2021 to May 2022 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 192 |  | 192 |  |  |  |  |
Load (MW) | MW |  | 950 |  | 950 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | June 2022 to May 2023 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 179 |  | 179 |  |  |  |  |
Load (MW) | MW |  | 950 |  | 950 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | June 2023 to May 2024 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 152 |  | 152 |  |  |  |  |
Load (MW) | MW |  | 930 |  | 930 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | June 2024 to May 2025 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 158 |  | 158 |  |  |  |  |
Load (MW) | MW |  | 950 |  | 950 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | June 2025 to May 2026 [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  | 231 |  |  |  |  |
Load (MW) | MW |  | 480 |  | 480 |  |  |  |  |
PSEG Power [Member] | ISO New England [Member] | Seven year rate BH5 lock through 2026 |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd |  | 231 |  | 231 |  |  |  |  |
PSEG Power [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | $ 0 | 0 | $ 0 |  | 0 |  |  |
PSEG Power [Member] | Gas Distribution [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
PSEG Power [Member] | Electric Transmission [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
PSEG Power [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 408 | 346 | 879 |  | 714 |  |  |
PSEG Power [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 62 | 111 | 150 |  | 232 |  |  |
PSEG Power [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 49 | 24 | 97 |  | 49 |  |  |
PSEG Power [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 18 | 25 | 69 |  | 73 |  |  |
PSEG Power [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 28 | 15 | 88 |  | 44 |  |  |
PSEG Power [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 110 | 124 | 520 |  | 478 |  |  |
PSEG Power [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 12 | 14 | 22 | [3] | 24 | [3] |  |
Other [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 145 | 141 | 286 |  | 285 |  |  |
Revenues Unrelated to Contracts with Customers |  | 10 | 7 | 20 | [1] | 19 | [1] |  |
Total Operating Revenues |  | 155 | 148 | 306 |  | 304 |  |  |
Other [Member] | LIPA OSA contract fixed component [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Anticipated Contract Revenues |  | 68 |  | 68 |  |  |  |  |
Other [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Gas Distribution [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Electric Transmission [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 0 | 0 | 0 |  | 0 |  |  |
Other [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 145 | 141 | 286 | [3] | 285 | [3] |  |
Public Service Electric and Gas Company [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Total Operating Revenues |  | 1,514 | 1,456 | 3,587 |  | 3,339 |  |  |
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses |  | 239 | 80 | 206 |  | 68 |  |  |
Provision for Other Credit Losses |  | 34 | 45 | 78 |  | 77 |  |  |
Accounts Receivable, Allowance for Credit Loss, Writeoff |  | (13) | (4) | (24) |  | (24) |  |  |
Accounts Receivable, Allowance for Credit Loss, Recovery |  | 5 | 1 | 7 |  | 3 |  |  |
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses |  | 260 | 121 | 260 |  | 121 |  |  |
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses |  | 260 | 121 | 260 |  | 121 |  | $ 206 |
Public Service Electric and Gas Company [Member] | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Accounts Receivable and Unbilled Revenues, Allowance for Credit Losses |  |  |  |  |  |  |  |  | $ 8
PSEG Power [Member] |  |  |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |  |  |
Total Operating Revenues |  | $ 380 | $ 683 | $ 1,547 |  | $ 1,903 |  |  |
[1] | Includes primarily alternative revenues at PSE&G, derivative contracts and lease contracts at PSEG Power, and lease contracts in Other.
[2] | Intercompany eliminations primarily relate to intercompany transactions between PSE&G and PSEG Power. For a further discussion of the intercompany transactions between PSE&G and PSEG Power, see Note 20. Related-Party Transactions.
[3] | Includes primarily revenues from appliance repair services and the sale of solar renewable energy certificates (SRECs) at auction 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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