ComEd 2013 Annual Report Download - page 147

Regulatory Assets and Liabilities
Exelon,ComEd, PECO and BGE prepare theirconsolidatedfinancial statementsinaccordancewiththe authoritativeguidancefor
accountingfor certaintypesofregulation.Under this guidance,regulatoryassetsrepresent incurredcoststhat havebeen deferred
becauseoftheir probable future recoveryfromcustomersthrough regulatedrates. Regulatoryliabilitiesrepresent theexcess
recoveryofcostsor accruedcreditsthat havebeen deferredbecauseitis probable such amountswill be returnedto customers
through future regulatedratesor represent billings inadvanceofexpendituresfor approvedregulatoryprograms.
Thefollowingtablesprovideinformation about theregulatoryassetsandliabilitiesofExelon asofDecember 31,2013 and2012.
December 31, 2013
Current Noncurrent
Regulatory assets
Pension andother postretirement benefits ...................................................................... $221 $2,794
Deferredincometaxes....................................................................................... 10 1,459
AMI programs .............................................................................................. 5 159
AMI meter events ........................................................................................... — 5
Under-recovered distribution servicecosts ...................................................................... 178 285
Debtcosts................................................................................................. 12 56
Fairvalue of BGE long-termdebt.............................................................................. — 219
Fairvalue of BGE supplycontract............................................................................. 12 —
Severance................................................................................................. 1612
Asset retirement obligations .................................................................................. 1 102
MGP remediation costs ...................................................................................... 40 212
RTO start-up costs.......................................................................................... 2—
Under-recovereduncollectible accounts ........................................................................ — 48
Under-recoveredelectric universal Renewable energy ............................................................ 17176
Energy andtransmission programs ............................................................................ 53—
Deferredstormcosts ........................................................................................ 33
Electric generation-relatedregulatoryasset ..................................................................... 13 30
Rate stabilization deferral .................................................................................... 71154
Energy efficiency anddemandresponse programs ............................................................... 73148
Merger integration costs ..................................................................................... 29
Other ..................................................................................................... 31 39
Total regulatoryassets ...................................................................................... $760$5,910
Current Noncurrent
Regulatory liabilities
Other postretirement benefits ................................................................................. $ 2$43
Nuclear decommissioning .................................................................................... — 2,740
Removal costs ............................................................................................. 99 1,423
Energy efficiency anddemandresponse programs ............................................................... 53—
DLC programcosts ......................................................................................... 110
Energy efficiency phaseII .................................................................................... — 21
Electric distribution taxrepairs ................................................................................ 20 114
Gas distribution taxrepairs ................................................................................... 8 37
Energy andtransmission programs ............................................................................ 78 —
Over-recoveredgasandelectric universal servicefundcosts ....................................................... 8 —
Revenue subjecttorefund ................................................................................... 38—
Over-recoveredelectric andgasrevenue decoupling ............................................................. 16—
Other ..................................................................................................... 4 —
Total regulatoryliabilities ..................................................................................... $327 $4,388
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