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Revenues Revenues (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) $ / mwd MW | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Jun. 30, 2018 USD ($) $ / mwd MW | Jun. 30, 2017 USD ($)
Revenues [Line Items] |  |  |  |  |  |  |
Lease Receivable adjustment | $ 20 | $ 22 | $ 55 | $ 20 |  | $ 77 |
Revenue from Contract with Customers | 1,962 | 1,869 |  | 4,606 |  | 4,235 |
Revenues Unrelated to Contracts with Customers | 54 | 273 |  | 228 | [1] | 498 | [1]
Total Operating Revenues | 2,016 | 2,142 |  | 4,834 |  | 4,733 |
Electric Distribution Contracts [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 754 | 757 |  | 1,444 |  | 1,458 |
Gas Distribution [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 244 | 227 |  | 1,000 |  | 981 |
Electric Transmission [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 301 | 307 |  | 613 |  | 606 |
Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 373 | 302 |  | 871 |  | 616 |
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] | NY ISO [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 46 | 50 |  | 105 |  | 86 |
Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 14 | 9 |  | 61 |  | 20 |
Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 30 | 11 |  | 94 |  | 63 |
Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 200 |  |  | 418 | [2] | 405 | [2]
Other Revenues from Contracts with Customers [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 206 |  |  |  |  |
PSE And G [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 1,366 | 1,364 |  | 3,199 |  | 3,181 |
Revenues Unrelated to Contracts with Customers | 20 | 29 |  | 32 |  | 38 |
Total Operating Revenues | 1,386 | 1,393 |  | 3,231 |  | 3,219 |
PSE And G [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 754 | 757 |  | 1,444 |  | 1,458 |
PSE And G [Member] | Gas Distribution [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 248 | 233 |  | 1,007 |  | 988 |
PSE And G [Member] | Electric Transmission [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 301 | 307 |  | 613 |  | 606 |
PSE And G [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
PSE And G [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 63 | 67 |  | 135 |  | 129 |
Power [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 731 | 662 |  | 1,982 |  | 1,670 |
Revenues Unrelated to Contracts with Customers | 36 | 256 |  | 188 |  | 517 |
Total Operating Revenues | 767 | 918 |  | 2,170 |  | 2,187 |
Anticipated Contract Revenues | $ 180 |  |  | $ 180 |  |  |
Power [Member] | PJM [Member] | June 2017 to May 2018 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 205 |  |  | 205 |  |  |
Load (MW) | MW | 9,200 |  |  | 9,200 |  |  |
Power [Member] | PJM [Member] | June 2018 to May 2019 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 116 |  |  | 116 |  |  |
Load (MW) | MW | 8,900 |  |  | 8,900 |  |  |
Power [Member] | PJM [Member] | June 2019 to May 2020 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 174 |  |  | 174 |  |  |
Load (MW) | MW | 7,800 |  |  | 7,800 |  |  |
Power [Member] | PJM [Member] | June 2020 to May 2021 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 178 |  |  | 178 |  |  |
Load (MW) | MW | 7,700 |  |  | 7,700 |  |  |
Power [Member] | ISO New England [Member] | June 2017 to May 2018 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 231 |  |  | 231 |  |  |
Power [Member] | ISO New England [Member] | June 2018 to May 2019 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 314 |  |  | 314 |  |  |
Load (MW) | MW | 820 |  |  | 820 |  |  |
Power [Member] | ISO New England [Member] | June 2019 to May 2020 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 231 |  |  | 231 |  |  |
Load (MW) | MW | 1,330 |  |  | 1,330 |  |  |
Power [Member] | ISO New England [Member] | June 2020 to May 2021 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 195 |  |  | 195 |  |  |
Load (MW) | MW | 1,330 |  |  | 1,330 |  |  |
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 |  |  |
Power [Member] | ISO New England [Member] | June 2022 to May 2023 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 231 |  |  | 231 |  |  |
Load (MW) | MW | 480 |  |  | 480 |  |  |
Power [Member] | ISO New England [Member] | June 2023 to May 2024 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 231 |  |  | 231 |  |  |
Load (MW) | MW | 480 |  |  | 480 |  |  |
Power [Member] | ISO New England [Member] | June 2024 to May 2025 [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Dollars Per Megawatt-Day | $ / mwd | 231 |  |  | 231 |  |  |
Load (MW) | MW | 480 |  |  | 480 |  |  |
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 |  |  |
Power [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | $ 0 | 0 |  | $ 0 |  | 0 |
Power [Member] | Gas Distribution [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Power [Member] | Electric Transmission [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Power [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 373 | 302 |  | 871 |  | 616 |
Power [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 147 | 171 |  | 323 |  | 355 |
Power [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 46 | 50 |  | 105 |  | 86 |
Power [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 14 | 9 |  | 61 |  | 20 |
Power [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 30 | 11 |  | 94 |  | 63 |
Power [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 108 | 107 |  | 505 |  | 508 |
Power [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 13 |  |  | 23 |  | 22 |
Power [Member] | Other Revenues from Contracts with Customers [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 12 |  |  |  |  |
Other [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 125 | 128 |  | 262 |  | 256 |
Revenues Unrelated to Contracts with Customers | (2) | (12) |  | 8 |  | (57) |
Total Operating Revenues | 123 | 116 |  | 270 |  | 199 |
Anticipated Contract Revenues | 64 |  |  | 64 |  |  |
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 | 125 |  |  | 262 |  | 256 |
Other [Member] | Other Revenues from Contracts with Customers [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers |  | 128 |  |  |  |  |
Eliminations [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | (260) | (285) |  | (837) |  | (872) |
Revenues Unrelated to Contracts with Customers | 0 | 0 |  | 0 |  | 0 |
Total Operating Revenues | (260) | (285) |  | (837) |  | (872) |
Eliminations [Member] | Electric Distribution Contracts [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Gas Distribution [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | (4) | (6) |  | (7) |  | (7) |
Eliminations [Member] | Electric Transmission [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Electricity and Related Products [Member] | PJM [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Electricity and Related Products [Member] | PJM [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | (147) | (171) |  | (323) |  | (355) |
Eliminations [Member] | Electricity and Related Products [Member] | NY ISO [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Electricity and Related Products [Member] | ISO New England [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Gas Sales [Member] | Third Party Sales [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | 0 | 0 |  | 0 |  | 0 |
Eliminations [Member] | Gas Sales [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | (108) | (107) |  | (505) |  | (508) |
Eliminations [Member] | Other Revenues from Contracts with Customers [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers | $ (1) |  |  | $ (2) |  | $ (2) |
Eliminations [Member] | Other Revenues from Contracts with Customers [Member] | Sales to Affiliates [Member] |  |  |  |  |  |  |
Revenues [Line Items] |  |  |  |  |  |  |
Revenue from Contract with Customers |  | $ (1) |  |  |  |  |
[1] | Includes primarily alternative revenues at PSE&G, derivative contracts at Power, and lease contracts in Other. For the three and six months ended June 30, 2018, Other includes a $20 million loss and for the three and six months ended June 30, 2017, Other includes a $22 million loss and a $77 million loss, respectively, related to Energy Holdings’ investments in leases.
[2] | Includes primarily revenues from appliance repair services at PSE&G, solar power projects and energy management and fuel service contracts with LIPA at Power, and PSEG LI’s OSA with LIPA in Other.

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