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Other Income And Deductions (Schedule Of Other Income) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Component of Other Income [Line Items] |  |  |  |
Investment Income, Interest and Dividend |  | $ 57 | $ 52 | $ 45
Components of Other Income [Roll Forward] |  |  |  |
Allowance for Funds Used During Construction |  | 59 | 54 | 56
Solar Loan Interest |  | 16 | 18 | 21
Donations |  | (11) | (17) | (28)
Other |  | 4 | (22) | (12)
Total Other Income and Deductions |  | 125 | 85 | 82
Public Service Electric and Gas Company |  |  |  |
Component of Other Income [Line Items] |  |  |  |
Investment Income, Interest and Dividend |  | 0 | 0 | 0
Components of Other Income [Roll Forward] |  |  |  |
Allowance for Funds Used During Construction |  | 59 | 54 | 56
Solar Loan Interest |  | 16 | 18 | 21
Donations |  | 0 | 0 | (1)
Other |  | 8 | 8 | 9
Total Other Income and Deductions |  | 83 | 80 | 85
PSEG Power LLC |  |  |  |
Component of Other Income [Line Items] |  |  |  |
Investment Income, Interest and Dividend |  | 57 | 52 | 45
Components of Other Income [Roll Forward] |  |  |  |
Allowance for Funds Used During Construction |  | 0 | 0 | 0
Solar Loan Interest |  | 0 | 0 | 0
Donations |  | 0 | 0 | (2)
Other |  | (3) | (31) | (23)
Total Other Income and Deductions |  | 54 | 21 | 20
Other [Member] |  |  |  |
Component of Other Income [Line Items] |  |  |  |
Investment Income, Interest and Dividend | [1] | 0 | 0 | 0
Components of Other Income [Roll Forward] |  |  |  |
Allowance for Funds Used During Construction | [1] | 0 | 0 | 0
Solar Loan Interest | [1] | 0 | 0 | 0
Donations | [1] | (11) | (17) | (25)
Other | [1] | (1) | 1 | 2
Total Other Income and Deductions | [1] | $ (12) | $ (16) | $ (23)
[1] | Other consists of activity at PSEG (as parent company), Energy Holdings, Services, PSEG LI and intercompany eliminations.

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