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Other Income And Deductions (Schedule Of Other Deductions) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Component of Other Deductions [Line Items] |  |  |  |  |
NDT Fund Realized Losses and Expenses |  | $ 8 | $ 5 | $ 21 | $ 31
Other |  | 2 | 3 | 9 | 8
Total Other Deductions |  | 10 | 8 | 30 | 39
PSE And G [Member] |  |  |  |  |
Component of Other Deductions [Line Items] |  |  |  |  |
NDT Fund Realized Losses and Expenses |  | 0 | 0 | 0 | 0
Other |  | 1 | 1 | 3 | 3
Total Other Deductions |  | 1 | 1 | 3 | 3
Power [Member] |  |  |  |  |
Component of Other Deductions [Line Items] |  |  |  |  |
NDT Fund Realized Losses and Expenses |  | 8 | 5 | 21 | 31
Other |  | 0 | 1 | 1 | 2
Total Other Deductions |  | 8 | 6 | 22 | 33
Other Entities [Member] |  |  |  |  |
Component of Other Deductions [Line Items] |  |  |  |  |
NDT Fund Realized Losses and Expenses | [1] | 0 | 0 | 0 | 0
Other | [1] | 1 | 1 | 5 | 3
Total Other Deductions | [1] | $ 1 | $ 1 | $ 5 | $ 3
[1] | Other consists of activity at PSEG (as parent company), Energy Holdings, Services, PSEG LI and intercompany eliminations.

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