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Trust Investments (Amount Of Available-For-Sale Debt Securities By Maturity Periods) (Detail) $ in Millions | Mar. 31, 2020 USD ($)
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Rabbi Trust [Member] |
Schedule of Trust Investments [Line Items] |
Total Available-for-Sale Debt Securities | $ 222
PSEG Power [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member] |
Schedule of Trust Investments [Line Items] |
Total Available-for-Sale Debt Securities | 1,091
Debt Securities [Member] | Rabbi Trust [Member] |
Schedule of Trust Investments [Line Items] |
Less than one year | 3
1 - 5 years | 27
6 - 10 years | 33
11 - 15 years | 14
16 - 20 years | 23
Over 20 years | 122
Debt Securities [Member] | PSEG Power [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member] |
Schedule of Trust Investments [Line Items] |
Less than one year | 17
1 - 5 years | 278
6 - 10 years | 183
11 - 15 years | 63
16 - 20 years | 73
Over 20 years | $ 477

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