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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Closing Balance1PSEG’s and Power’s gains and losses attributable to changes in net derivative assets and liabilities include $17 million and $7 million in Operating Income in 2013 and 2012, respectively. Of the $17 million in Operating Income in 2013, $16 million is unrealized. Of the $7 million in Operating Income in 2012, $(7) million is unrealized. Energy Holdings' release from its obligation under the non-recourse debt is included in PSEG's Operating Income for 2012 and is offset by the write-off of the related assets.2PSEG’s and Power’s gains and losses attributable to changes in net derivative assets and liabilities include $(17) million and $41 million in Operating Income in 2013 and 2012, respectively. Of the $(17) million in Operating Income in 2013, $(8) million is unrealized. Of the $41 million in Operating Income in 2012, $(2) million is unrealized. Energy Holdings' release from its obligation under the non-recourse debt is included in PSEG's Operating Income for 2012 and is offset by the write-off of the related assets.3Mainly includes gains/losses on PSE&G’s derivative contracts that are not included in either earnings or OCI, as they are deferred as a Regulatory Asset/Liability and are expected to be recovered from/returned to PSE&G’s customers.4Represents $(14) million in settlements for the three months ended June 30, 2012. Includes $10 million and $(43) million in settlements for the six months ended June 30, 2013 and 2012, respectively.5During the three months ended June 30, 2013 and six months ended June 30, 2013, $6 million and $4 million, respectively, of net derivatives assets/liabilities were transferred from Level 3 to Level 2 due to more observable pricing for the underlying securities. The transfer was recognized as of the beginning of the first quarter (i.e. the quarter in which the transfer occurred), as per PSEG's policy. There were no transfers among levels during the three months ended June 30, 2012 and the six months ended June 30, 2012.falseFair Value Measurements (Changes In Level 3 Assets And (Liabilities) Measured At Fair Value On A Recurring Basis) (Detail) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.pseg.com/role/FairValueMeasurementsChangesInLevel3AssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail547