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Organization, Basis Of Presentation And Summary Of Significant Accounting Policies (Depreciation Rate Stated Percentage) (Details) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
General Plant Assets [Member] | Minimum [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 3 years |  |
General Plant Assets [Member] | Maximum [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 20 years |  |
Fossil Production [Member] | Minimum [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 30 years |  |
Fossil Production [Member] | Maximum [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 70 years |  |
Nuclear Production [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 60 years |  |
Pumped Storage Facilities [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 76 years |  |
Solar Assets [Member] | Power [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives | 25 years |  |
Electric Transmission [Member] | PSE&G [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Depreciation Rate | 2.41% | 2.39% | 2.42%
Electric Distribution [Member] | PSE&G [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Depreciation Rate | 2.51% | 2.49% | 2.50%
Gas Distribution [Member] | PSE&G [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Depreciation Rate | 1.63% | 1.63% | 1.64%

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- Definition Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] + References No definition available. + Details
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- Definition Composite depreciation rate for public utility plants in service. + References No definition available. + Details
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- Definition Useful life of utility generation assets owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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