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v2.4.1.9

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Unrealized Gains (Losses) on Available-for-Sale Securities, tax | $ (13)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax | $ (3)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax
Unrealized Gains (Losses) on Cash Flow Hedges, tax | 7 us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax | (2)us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax
Pension/OPEB adjustment, tax | (6)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax | (2)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
PSE And G [Member] |  |
Unrealized Gains (Losses) on Available-for-Sale Securities, tax | 0 us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax / dei_LegalEntityAxis = pseg_PseAndGMember | 0 us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax / dei_LegalEntityAxis = pseg_PseAndGMember
Power [Member] |  |
Unrealized Gains (Losses) on Available-for-Sale Securities, tax | (13)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax / dei_LegalEntityAxis = pseg_PowerMember | (2)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax / dei_LegalEntityAxis = pseg_PowerMember
Unrealized Gains (Losses) on Cash Flow Hedges, tax | 7 us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax / dei_LegalEntityAxis = pseg_PowerMember | (1)us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax / dei_LegalEntityAxis = pseg_PowerMember
Pension/OPEB adjustment, tax | $ (5)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax / dei_LegalEntityAxis = pseg_PowerMember | $ (2)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax / dei_LegalEntityAxis = pseg_PowerMember

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