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Income Taxes (Schedule Of Effective Tax Rates) (Detail) | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
PSEG [Member] |  |
Income Taxes [Line Items] |  |
Effective tax rate | 37.50% | 40.50%
PSE And G [Member] |  |
Income Taxes [Line Items] |  |
Effective tax rate | 36.60% | 39.40%
Power [Member] |  |
Income Taxes [Line Items] |  |
Effective tax rate | 40.20% | 41.10%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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