XML 28 R70.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Financial Risk Management Activities (Schedule Providing Credit Risk From Others, Net Of Collateral) (Detail) (Power [Member], USD $) In Millions, unless otherwise specified | Mar. 31, 2015
--- | ---
Derivative [Line Items] |  |
Current Exposure | $ 413 pseg_TotalCreditExposureWithCounterparties |
Securities held as Collateral | 96 us-gaap_SecuritiesHeldAsCollateralAtFairValue |
Net exposure | 405 pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral |
Number of Counterparties greater than 10% | 1 pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure |
Amount Of Net Credit Exposure Greater Than Ten Percent | 197 pseg_AmountOfNetCreditExposureGreaterThanTenPercent |
Investment Grade - External Rating [Member] |  |
Derivative [Line Items] |  |
Current Exposure | 396 pseg_TotalCreditExposureWithCounterparties / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Securities held as Collateral | 96 us-gaap_SecuritiesHeldAsCollateralAtFairValue / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Net exposure | 388 pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Number of Counterparties greater than 10% | 1 pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Amount Of Net Credit Exposure Greater Than Ten Percent | 197 pseg_AmountOfNetCreditExposureGreaterThanTenPercent / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember | [1]
Non-Investment Grade - External Rating [Member] |  |
Derivative [Line Items] |  |
Current Exposure | 2 pseg_TotalCreditExposureWithCounterparties / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Securities held as Collateral | 0 us-gaap_SecuritiesHeldAsCollateralAtFairValue / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Net exposure | 2 pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Number of Counterparties greater than 10% | 0 pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Amount Of Net Credit Exposure Greater Than Ten Percent | 0 pseg_AmountOfNetCreditExposureGreaterThanTenPercent / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Investment Grade - No External Rating [Member] |  |
Derivative [Line Items] |  |
Current Exposure | 4 pseg_TotalCreditExposureWithCounterparties / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Securities held as Collateral | 0 us-gaap_SecuritiesHeldAsCollateralAtFairValue / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Net exposure | 4 pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Number of Counterparties greater than 10% | 0 pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Amount Of Net Credit Exposure Greater Than Ten Percent | 0 pseg_AmountOfNetCreditExposureGreaterThanTenPercent / us-gaap_DerivativeByNatureAxis = pseg_InvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Non-Investment Grade - No External Rating [Member] |  |
Derivative [Line Items] |  |
Current Exposure | 11 pseg_TotalCreditExposureWithCounterparties / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Securities held as Collateral | 0 us-gaap_SecuritiesHeldAsCollateralAtFairValue / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Net exposure | 11 pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Number of Counterparties greater than 10% | 0 pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
Amount Of Net Credit Exposure Greater Than Ten Percent | $ 0 pseg_AmountOfNetCreditExposureGreaterThanTenPercent / us-gaap_DerivativeByNatureAxis = pseg_NonInvestmentGradeNoExternalRatingMember / dei_LegalEntityAxis = pseg_PowerMember |
[1] | Represents net exposure with PSE&G.

X
- Definition Amount of net credit exposure greater than ten percent + References No definition available. + Details
Name: | pseg_AmountOfNetCreditExposureGreaterThanTenPercent
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net credit exposure with counterparties after applying collateral + References No definition available. + Details
Name: | pseg_NetCreditExposureWithCounterpartiesAfterApplyingCollateral
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of counterparties with greater than ten percent of net credit exposure + References No definition available. + Details
Name: | pseg_NumberOfCounterpartiesWithGreaterThanTenPercentOfNetCreditExposure
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total credit exposure with counterparties + References No definition available. + Details
Name: | pseg_TotalCreditExposureWithCounterparties
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | us-gaap_SecuritiesHeldAsCollateralAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant