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Trust Investments (Amount Of Available-For-Sale Debt Securities By Maturity Periods) (Detail) $ in Millions | Jun. 30, 2020 USD ($)
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Rabbi Trust [Member] |
Schedule of Trust Investments [Line Items] |
Total Available-for-Sale Debt Securities | $ 233
PSEG Power [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member] |
Schedule of Trust Investments [Line Items] |
Total Available-for-Sale Debt Securities | 1,133
Debt Securities [Member] | Rabbi Trust [Member] |
Schedule of Trust Investments [Line Items] |
Less than one year | 1
1 - 5 years | 32
6 - 10 years | 32
11 - 15 years | 16
16 - 20 years | 32
Over 20 years | 120
Debt Securities [Member] | PSEG Power [Member] | Nuclear Decommissioning Trust (NDT) Fund [Member] |
Schedule of Trust Investments [Line Items] |
Less than one year | 23
1 - 5 years | 257
6 - 10 years | 220
11 - 15 years | 75
16 - 20 years | 71
Over 20 years | $ 487

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