$EXC
EXELON CORP Stock $exc

$exc Overview Financials Valuation SEC Filings Company Website

2014 Q4 Form 10-K Financial Statement

#000119312515049964 Filed on February 13, 2015

Income Statement

Concept	2014 Q4	2013 Q4	2013 Q3
Revenue	$7.255B	$6.163B	$6.502B
YoY Change	17.72%	-1.46%	-1.17%
Cost Of Revenue	$3.604B	$2.581B	$2.743B
YoY Change	39.64%	-6.45%	-9.35%
Gross Profit	$3.652B	$3.582B	$3.759B
YoY Change	1.95%	2.49%	5.8%
Gross Profit Margin	50.34%	58.12%	57.81%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$825.0M	$18.00M	$872.0M
YoY Change	4483.33%	-98.46%	-14.0%
% of Gross Profit	22.59%	0.5%	23.2%
Operating Expenses	$3.412B	$2.696B	$2.542B
YoY Change	26.56%	-2.64%	-14.12%
Operating Profit	$240.0M	$886.0M	$1.254B
YoY Change	-72.91%	25.85%	107.96%
Interest Expense	-$343.0M	-$243.0M	$228.0M
YoY Change	41.15%	-3.95%	-5.0%
% of Operating Profit	-142.92%	-27.43%	18.18%
Other Income/Expense, Net	-$247.0M	$162.0M	-$79.00M
YoY Change	-252.47%	74.19%	-45.52%
Pretax Income	$115.0M	$805.0M	$1.175B
YoY Change	-85.71%	42.23%	156.55%
Income Tax	$20.00M	$311.0M	$439.0M
% Of Pretax Income	17.39%	38.63%	37.36%
Net Earnings	$18.00M	$495.0M	$738.0M
YoY Change	-96.36%	30.95%	149.32%
Net Earnings / Revenue	0.25%	8.03%	11.35%
Basic Earnings Per Share	$0.02	$0.60	$0.86
Diluted Earnings Per Share	$0.02	$0.59	$0.86
COMMON SHARES
Basic Shares Outstanding	861.0M shares	856.0M shares	857.0M shares
Diluted Shares Outstanding	868.0M shares	860.0M shares	860.0M shares

Balance Sheet

Concept	2014 Q4	2013 Q4	2013 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.878B	$1.609B	$1.644B
YoY Change	16.72%	8.28%	-3.29%
Cash & Equivalents	$1.878B	$1.609B	$1.644B
Short-Term Investments
Other Short-Term Assets	$865.0M	$652.0M	$699.0M
YoY Change	32.67%	16.43%	-34.79%
Inventory	$1.603B	$1.105B	$1.109B
Prepaid Expenses
Receivables	$3.482B	$2.981B	$2.584B
Other Receivables	$1.227B	$1.175B	$1.232B
Total Short-Term Assets	$11.85B	$10.14B	$9.951B
YoY Change	16.93%	-0.03%	-12.16%
LONG-TERM ASSETS
Property, Plant & Equipment	$52.17B	$47.33B	$46.50B
YoY Change	10.23%	4.74%	5.88%
Goodwill	$2.672B	$2.625B	$2.625B
YoY Change	1.79%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$0.00	$1.925B	$3.116B
YoY Change	-100.0%	4.11%	-0.03%
Other Assets	$923.0M	$964.0M	$1.121B
YoY Change	-4.25%	-14.54%	-4.68%
Total Long-Term Assets	$74.56B	$69.79B	$69.97B
YoY Change	6.84%	2.0%	4.4%
TOTAL ASSETS
Total Short-Term Assets	$11.85B	$10.14B	$9.951B
Total Long-Term Assets	$74.56B	$69.79B	$69.97B
Total Assets	$86.42B	$79.92B	$79.92B
YoY Change	8.12%	1.73%	2.01%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.048B	$2.484B	$2.369B
YoY Change	22.71%	4.46%	0.42%
Accrued Expenses	$1.539B	$1.633B	$1.540B
YoY Change	-5.76%	-9.08%	2.53%
Deferred Revenue
YoY Change
Short-Term Debt	$460.0M	$341.0M	$214.0M
YoY Change	34.9%		256.67%
Long-Term Debt Due	$1.802B	$1.509B	$1.643B
YoY Change	19.42%	44.13%	46.83%
Total Short-Term Liabilities	$8.762B	$7.728B	$7.507B
YoY Change	13.38%	-0.81%	-3.38%
LONG-TERM LIABILITIES
Long-Term Debt	$19.21B	$17.62B	$17.58B
YoY Change	9.02%	2.52%	3.13%
Other Long-Term Liabilities	$2.147B	$2.540B	$2.514B
YoY Change	-15.47%	53.94%	48.67%
Total Long-Term Liabilities	$21.36B	$20.16B	$20.10B
YoY Change	5.93%	7.02%	7.24%
TOTAL LIABILITIES
Total Short-Term Liabilities	$8.762B	$7.728B	$7.507B
Total Long-Term Liabilities	$21.36B	$20.16B	$20.10B
Total Liabilities	$62.28B	$56.98B	$57.59B
YoY Change	9.3%	0.42%	2.55%
SHAREHOLDERS EQUITY
Retained Earnings	$10.91B	$10.36B	$10.13B
YoY Change	5.33%	4.7%	1.73%
Common Stock	$16.71B	$16.74B	$16.72B
YoY Change	-0.19%	0.66%	0.74%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.327B	$2.327B	$2.327B
YoY Change	0.0%	0.0%	0.0%
Treasury Stock Shares	35.00M shares	35.00M shares	35.00M shares
Shareholders Equity	$22.61B	$22.73B	$21.86B
YoY Change
Total Liabilities & Shareholders Equity	$86.42B	$79.92B	$79.66B
YoY Change	8.12%	1.73%	1.67%

Cashflow Statement

Concept	2014 Q4	2013 Q4	2013 Q3
OPERATING ACTIVITIES
Net Income	$18.00M	$495.0M	$738.0M
YoY Change	-96.36%	30.95%	149.32%
Depreciation, Depletion And Amortization	$825.0M	$18.00M	$872.0M
YoY Change	4483.33%	-98.46%	-14.0%
Cash From Operating Activities	$814.0M	$1.949B	$2.056B
YoY Change	-58.23%	25.18%	11.44%
INVESTING ACTIVITIES
Capital Expenditures	-$1.963B	-$1.508B	-$1.369B
YoY Change	30.17%	-7.31%	1.71%
Acquisitions
YoY Change
Other Investing Activities	$740.0M	$84.00M	-$52.00M
YoY Change	780.95%	-78.63%	333.33%
Cash From Investing Activities	-$1.223B	-$1.424B	-$1.421B
YoY Change	-14.12%	15.4%	4.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-476.0M	-560.0M	18.00M
YoY Change	-15.0%	4.28%	-113.24%
NET CHANGE
Cash From Operating Activities	814.0M	1.949B	2.056B
Cash From Investing Activities	-1.223B	-1.424B	-1.421B
Cash From Financing Activities	-476.0M	-560.0M	18.00M
Net Change In Cash	-885.0M	-35.00M	653.0M
YoY Change	2428.57%	-83.64%	86.04%
FREE CASH FLOW
Cash From Operating Activities	$814.0M	$1.949B	$2.056B
Capital Expenditures	-$1.963B	-$1.508B	-$1.369B
Free Cash Flow	$2.777B	$3.457B	$3.425B
YoY Change	-19.67%	8.57%	7.33%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014Q4	exc	Accrued Severance Current AccruedSeveranceCurrent	49000000	USD
CY2013Q4	exc	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	2371000000	USD
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0001109357
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	859833343	shares
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014Q4	dei	Entity Public Float EntityPublicFloat	31319710373	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	EXELON CORP
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013Q4	exc	Accrued Compensation Current AccruedCompensationCurrent	683000000	USD
CY2014Q4	exc	Accrued Compensation Current AccruedCompensationCurrent	832000000	USD
CY2013Q4	exc	Accrued Severance Current AccruedSeveranceCurrent	66000000	USD
CY2014Q4	exc	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	2673000000	USD
CY2012	exc	Amortization Of Debt Costs AmortizationOfDebtCosts	19000000	USD
CY2013	exc	Amortization Of Debt Costs AmortizationOfDebtCosts	18000000	USD
CY2014	exc	Amortization Of Debt Costs AmortizationOfDebtCosts	53000000	USD
CY2012	exc	Amortization Of Debt Fair Value Adjustment AmortizationOfDebtFairValueAdjustment	-34000000	USD
CY2013	exc	Amortization Of Debt Fair Value Adjustment AmortizationOfDebtFairValueAdjustment	-34000000	USD
CY2014	exc	Amortization Of Debt Fair Value Adjustment AmortizationOfDebtFairValueAdjustment	-23000000	USD
CY2012	exc	Amortization Of Intangible Assets Net AmortizationOfIntangibleAssetsNet	40000000	USD
CY2013	exc	Amortization Of Intangible Assets Net AmortizationOfIntangibleAssetsNet	48000000	USD
CY2014	exc	Amortization Of Intangible Assets Net AmortizationOfIntangibleAssetsNet	44000000	USD
CY2012	exc	Amortization Of Intangible Assets Related To Commodity Contracts AmortizationOfIntangibleAssetsRelatedToCommodityContracts	1505000000	USD
CY2013	exc	Amortization Of Intangible Assets Related To Commodity Contracts AmortizationOfIntangibleAssetsRelatedToCommodityContracts	767000000	USD
CY2014	exc	Amortization Of Intangible Assets Related To Commodity Contracts AmortizationOfIntangibleAssetsRelatedToCommodityContracts	289000000	USD
CY2012	exc	Amortization Of Intangible Assets Related To Commodity Contracts For Revenue Net Purchased Power And Fuel AmortizationOfIntangibleAssetsRelatedToCommodityContractsForRevenueNetPurchasedPowerAndFuel	1098000000	USD
CY2013	exc	Amortization Of Intangible Assets Related To Commodity Contracts For Revenue Net Purchased Power And Fuel AmortizationOfIntangibleAssetsRelatedToCommodityContractsForRevenueNetPurchasedPowerAndFuel	488000000	USD
CY2014	exc	Amortization Of Intangible Assets Related To Commodity Contracts For Revenue Net Purchased Power And Fuel AmortizationOfIntangibleAssetsRelatedToCommodityContractsForRevenueNetPurchasedPowerAndFuel	124000000	USD
CY2012	exc	Amortization Of Regulatory Asset Debt Costs AmortizationOfRegulatoryAssetDebtCosts	18000000	USD
CY2013	exc	Amortization Of Regulatory Asset Debt Costs AmortizationOfRegulatoryAssetDebtCosts	12000000	USD
CY2014	exc	Amortization Of Regulatory Asset Debt Costs AmortizationOfRegulatoryAssetDebtCosts	11000000	USD
CY2012	exc	Amortization Rate Stabilization Deferral AmortizationRateStabilizationDeferral	57000000	USD
CY2013	exc	Amortization Rate Stabilization Deferral AmortizationRateStabilizationDeferral	66000000	USD
CY2014	exc	Amortization Rate Stabilization Deferral AmortizationRateStabilizationDeferral	65000000	USD
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CY2014Q4	exc	Asbestos Loss Contingency Accrual At Carrying Value AsbestosLossContingencyAccrualAtCarryingValue	100000000	USD
CY2014Q4	exc	Asbestos Loss Contingency Accrual At Carrying Value Related To Anticipated Claims AsbestosLossContingencyAccrualAtCarryingValueRelatedToAnticipatedClaims	78000000	USD
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CY2012	exc	Business Acquisition Contributions Per Year BusinessAcquisitionContributionsPerYear	7000000	USD
CY2012	exc	Business Acquisition Customer Investment Fund To Invest In Energy Efficiency And Low Income Energy Assistance To Customers BusinessAcquisitionCustomerInvestmentFundToInvestInEnergyEfficiencyAndLowIncomeEnergyAssistanceToCustomers	114000000	USD
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CY2012	exc	Business Acquisition Regulatory Rate Credit BusinessAcquisitionRegulatoryRateCredit	113000000	USD
CY2012	exc	Business Acquisitions Charitable Contributions BusinessAcquisitionsCharitableContributions	70000000	USD
CY2012	exc	Business Acquisitions Charitable Contributions Length Of Years BusinessAcquisitionsCharitableContributionsLengthOfYears	P10Y
CY2012	exc	Business Acquisitions Contribution For Renewable Energy Or Energy Efficiency BusinessAcquisitionsContributionForRenewableEnergyOrEnergyEfficiency	2000000	USD
CY2012	exc	Business Acquisitions Government Funding For Energy Development BusinessAcquisitionsGovernmentFundingForEnergyDevelopment	32000000	USD
CY2012	exc	Business Acquisitions Miscellaneous Tax Benefits BusinessAcquisitionsMiscellaneousTaxBenefits	2000000	USD
CY2012	exc	Business Acquisitions Total Settlement BusinessAcquisitionsTotalSettlement	329000000	USD
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CY2000Q4	exc	Capital Lease Net Investment In Direct Financing Leases Prepayments Received CapitalLeaseNetInvestmentInDirectFinancingLeasesPrepaymentsReceived	1200000000.0	USD
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CY2013Q4	exc	Collateral Received Net Of Collateral Posted Offset Against Fair Value Of Derivative Assets And Liabilities CollateralReceivedNetOfCollateralPostedOffsetAgainstFairValueOfDerivativeAssetsAndLiabilities	144000000	USD
CY2014Q4	exc	Common Stock Contingent Shares Requiredtobe Issuedin Agreement CommonStockContingentSharesRequiredtobeIssuedinAgreement	4000000	shares
CY2014Q4	exc	Common Stock Shares Reserved For Warrant Conversion CommonStockSharesReservedForWarrantConversion	24511	shares
CY2014Q4	exc	Consolidated Subsidiary Common Stock Ownership Percentage ConsolidatedSubsidiaryCommonStockOwnershipPercentage	1
CY2012	exc	Cost Of Goods And Services Energy Commodities And Services From Affiliate CostOfGoodsAndServicesEnergyCommoditiesAndServicesFromAffiliate	1036000000	USD
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CY2014Q4	exc	Credit Derivative Collateral Held Directly Or By Third Parties Monetary Amount CreditDerivativeCollateralHeldDirectlyOrByThirdPartiesMonetaryAmount	2000000	USD
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CY2012Q1	exc	Deferred State Tax Asset From State Tax Apportionment DeferredStateTaxAssetFromStateTaxApportionment	72000000	USD
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CY2014Q1	exc	Defined Benefit Plan Amounts Recognized In Regulatory Liabilities Before Tax DefinedBenefitPlanAmountsRecognizedInRegulatoryLiabilitiesBeforeTax	5000000	USD
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CY2012	exc	Effective Income Tax Rate Reconciliation Elimination Of Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationEliminationOfDeductionsMedicarePrescriptionDrugBenefit	0.001
CY2013	exc	Effective Income Tax Rate Reconciliation Elimination Of Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationEliminationOfDeductionsMedicarePrescriptionDrugBenefit	0.001
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CY2012	exc	Energy Related Options EnergyRelatedOptions	160000000	USD
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CY2014	exc	Estimated Percent Of Gas Purchases Being Hedged EstimatedPercentOfGasPurchasesBeingHedged	0.30
CY2012	exc	Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Options ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockOptions	2000000	USD
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CY2014	exc	Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Options ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockOptions	0	USD
CY2014	exc	Expected After Tax Proceed ExpectedAfterTaxProceed	1400000000	USD
CY2014	exc	Expected Pre Taxproceeds ExpectedPreTaxproceeds	1800000000	USD
CY2013Q4	exc	Fair Value Asset And Liabilities Measured On Recurring Basis Total Net FairValueAssetAndLiabilitiesMeasuredOnRecurringBasisTotalNet	10589000000	USD
CY2014Q4	exc	Fair Value Asset And Liabilities Measured On Recurring Basis Total Net FairValueAssetAndLiabilitiesMeasuredOnRecurringBasisTotalNet	13337000000	USD
CY2013Q4	exc	Fair Value Assets Measured On Recurring Basis Rabbi Trust Investments Total FairValueAssetsMeasuredOnRecurringBasisRabbiTrustInvestmentsTotal		USD
CY2013Q4	exc	Fair Value Assets Measured On Recurring Basis Total FairValueAssetsMeasuredOnRecurringBasisTotal	11162000000	USD
CY2014Q4	exc	Fair Value Assets Measured On Recurring Basis Total FairValueAssetsMeasuredOnRecurringBasisTotal	14081000000	USD
CY2013Q4	exc	Fair Value Carrying Value Adjustment Net FairValueCarryingValueAdjustmentNet	7000000	USD
CY2014Q4	exc	Fair Value Carrying Value Adjustment Net FairValueCarryingValueAdjustmentNet	4000000	USD
CY2013Q4	exc	Fair Value Inputs Cash Collateral Excluded FairValueInputsCashCollateralExcluded	26000000	USD
CY2014Q4	exc	Fair Value Inputs Cash Collateral Excluded FairValueInputsCashCollateralExcluded	172000000	USD
CY2013Q4	exc	Fair Value Liabilities Measured On Recurring Basis Deferred Compensation FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensation	114000000	USD
CY2014Q4	exc	Fair Value Liabilities Measured On Recurring Basis Deferred Compensation FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensation	107000000	USD
CY2013Q4	exc	Fair Value Liabilities Measured On Recurring Basis Total FairValueLiabilitiesMeasuredOnRecurringBasisTotal	573000000	USD
CY2014Q4	exc	Fair Value Liabilities Measured On Recurring Basis Total FairValueLiabilitiesMeasuredOnRecurringBasisTotal	744000000	USD
CY2014Q4	exc	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityValue		USD
CY2012	exc	Fair Value Of Settled Performance Share Awards FairValueOfSettledPerformanceShareAwards	23000000	USD
CY2013	exc	Fair Value Of Settled Performance Share Awards FairValueOfSettledPerformanceShareAwards	26000000	USD
CY2014	exc	Fair Value Of Settled Performance Share Awards FairValueOfSettledPerformanceShareAwards	27000000	USD
CY2012	exc	Fair Value Of Settled Restricted Stock Units FairValueOfSettledRestrictedStockUnits	25000000	USD
CY2013	exc	Fair Value Of Settled Restricted Stock Units FairValueOfSettledRestrictedStockUnits	28000000	USD
CY2014	exc	Fair Value Of Settled Restricted Stock Units FairValueOfSettledRestrictedStockUnits	43000000	USD
CY2012	exc	Fair Value Swap Contract Cash Flow Hedge Gain Loss Reclassified To Earnings Net Of Tax FairValueSwapContractCashFlowHedgeGainLossReclassifiedToEarningsNetOfTax	133000000	USD
CY2014	exc	Fair Valueof Financing Contract Payments FairValueofFinancingContractPayments	131000000	USD
CY2012	exc	Ferc Settlement Recorded Operation Maintenance Expense FercSettlementRecordedOperationMaintenanceExpense	50000000	USD
CY2014Q2	exc	Forward Contract Payment Rate ForwardContractPaymentRate	0.04
CY2014Q4	exc	Forward Gas Basis ForwardGasBasis	0.34	USD
CY2014Q4	exc	Forward Power Basis ForwardPowerBasis	2.75	USD
CY2012	exc	Gain Loss Investment Income Nuclear Decommissioning Trust Funds GainLossInvestmentIncomeNuclearDecommissioningTrustFunds	325000000	USD
CY2013	exc	Gain Loss Investment Income Nuclear Decommissioning Trust Funds GainLossInvestmentIncomeNuclearDecommissioningTrustFunds	346000000	USD
CY2014	exc	Gain Loss Investment Income Nuclear Decommissioning Trust Funds GainLossInvestmentIncomeNuclearDecommissioningTrustFunds	360000000	USD
CY2013	exc	Gain Loss On Interest Rate Swap Treasury Rate Lock Net Of Tax GainLossOnInterestRateSwapTreasuryRateLockNetOfTax	5000000	USD
CY2014	exc	Gain Loss On Interest Rate Swap Treasury Rate Lock Net Of Tax GainLossOnInterestRateSwapTreasuryRateLockNetOfTax	20000000	USD
CY2012Q3	exc	Gas Distribution Repair Tax Benefit Expense GasDistributionRepairTaxBenefitExpense	26000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Next Twelve Months GuaranteeObligationsMaximumExposureNextTwelveMonths	5448000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Year Five GuaranteeObligationsMaximumExposureYearFive	22000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Year Four GuaranteeObligationsMaximumExposureYearFour	21000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Year Six And Beyond GuaranteeObligationsMaximumExposureYearSixAndBeyond	3775000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Year Three GuaranteeObligationsMaximumExposureYearThree	29000000	USD
CY2014Q4	exc	Guarantee Obligations Maximum Exposure Year Two GuaranteeObligationsMaximumExposureYearTwo	107000000	USD
CY2013Q1	exc	High Share Price HighSharePrice	34.56	USD
CY2013Q2	exc	High Share Price HighSharePrice	37.8	USD
CY2013Q3	exc	High Share Price HighSharePrice	32.42	USD
CY2013Q4	exc	High Share Price HighSharePrice	30.59	USD
CY2014Q1	exc	High Share Price HighSharePrice	33.94	USD
CY2014	exc	Increase Decrease In Other Noncurrent Operating Assets Liabilities IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities	-204000000	USD
CY2012	exc	Increase Decrease Other Regulatory Assetsand Liabilities IncreaseDecreaseOtherRegulatoryAssetsandLiabilities	-404000000	USD
CY2013	exc	Increase Decrease Other Regulatory Assetsand Liabilities IncreaseDecreaseOtherRegulatoryAssetsandLiabilities	-64000000	USD
CY2014Q2	exc	High Share Price HighSharePrice	37.73	USD
CY2014Q3	exc	High Share Price HighSharePrice	36.26	USD
CY2014Q4	exc	High Share Price HighSharePrice	38.93	USD
CY2014	exc	Hypothetical Effectof Increasein Interest Rates HypotheticalEffectofIncreaseinInterestRates	8000000	USD
CY2012	exc	Impacts Energy Infrastructure Modernization Act ImpactsEnergyInfrastructureModernizationAct	96000000	USD
CY2013	exc	Impacts Energy Infrastructure Modernization Act ImpactsEnergyInfrastructureModernizationAct	271000000	USD
CY2014	exc	Impacts Energy Infrastructure Modernization Act ImpactsEnergyInfrastructureModernizationAct	-53000000	USD
CY2014Q4	exc	Income Tax And Penalties From Potential Settle With Taxing Authority IncomeTaxAndPenaltiesFromPotentialSettleWithTaxingAuthority	810000000	USD
CY2014Q4	exc	Income Tax Examination Interest Expense From Potential Settlement With Taxing Authority IncomeTaxExaminationInterestExpenseFromPotentialSettlementWithTaxingAuthority	310000000	USD
CY2012	exc	Increase Decrease In Counterparty Collateral Net IncreaseDecreaseInCounterpartyCollateralNet	-135000000	USD
CY2013	exc	Increase Decrease In Counterparty Collateral Net IncreaseDecreaseInCounterpartyCollateralNet	-215000000	USD
CY2014	exc	Increase Decrease In Counterparty Collateral Net IncreaseDecreaseInCounterpartyCollateralNet	1478000000	USD
CY2012	exc	Increase Decrease In Other Current Operating Assets And Liabilities IncreaseDecreaseInOtherCurrentOperatingAssetsAndLiabilities	213000000	USD
CY2013	exc	Increase Decrease In Other Current Operating Assets And Liabilities IncreaseDecreaseInOtherCurrentOperatingAssetsAndLiabilities	-165000000	USD
CY2014	exc	Increase Decrease In Other Current Operating Assets And Liabilities IncreaseDecreaseInOtherCurrentOperatingAssetsAndLiabilities	7000000	USD
CY2012	exc	Increase Decrease In Other Noncurrent Operating Assets Liabilities IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities	-248000000	USD
CY2013	exc	Increase Decrease In Other Noncurrent Operating Assets Liabilities IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities	322000000	USD
CY2014	exc	Increase Decrease Other Regulatory Assetsand Liabilities IncreaseDecreaseOtherRegulatoryAssetsandLiabilities	-167000000	USD
CY2014Q4	exc	Interest Rate Swaps Fair Value Acquiree InterestRateSwapsFairValueAcquiree	150000000	USD
CY2014	exc	Inventory Adjustments During Period InventoryAdjustmentsDuringPeriod	29000000	USD
CY2013Q4	exc	Investments In Nonconsolidated Variable Interest Entities InvestmentsInNonconsolidatedVariableInterestEntities	86000000	USD
CY2014Q4	exc	Investments In Nonconsolidated Variable Interest Entities InvestmentsInNonconsolidatedVariableInterestEntities	9000000	USD
CY2014Q4	exc	Letters Of Credit Held LettersOfCreditHeld	16000000	USD
CY2013Q4	exc	Long Term Debt To Financing Trusts Fair Value Disclosure LongTermDebtToFinancingTrustsFairValueDisclosure	648000000	USD
CY2014Q4	exc	Long Term Debt To Financing Trusts Fair Value Disclosure LongTermDebtToFinancingTrustsFairValueDisclosure	648000000	USD
CY2014	exc	Loss Contingency Settlement Agreement Estimated Future Periodfor Payment LossContingencySettlementAgreementEstimatedFuturePeriodforPayment	P20Y
CY2013Q1	exc	Low Share Price LowSharePrice	29.1	USD
CY2013Q2	exc	Low Share Price LowSharePrice	29.84	USD
CY2013Q3	exc	Low Share Price LowSharePrice	29.42	USD
CY2013Q4	exc	Low Share Price LowSharePrice	26.64	USD
CY2014Q1	exc	Low Share Price LowSharePrice	26.45	USD
CY2014Q2	exc	Low Share Price LowSharePrice	33.11	USD
CY2014Q3	exc	Low Share Price LowSharePrice	30.66	USD
CY2014Q4	exc	Low Share Price LowSharePrice	33.07	USD
CY2014	exc	Members Equity Including Portion Attributable To Noncontrolling Interest Acquisitions MembersEquityIncludingPortionAttributableToNoncontrollingInterestAcquisitions	273000000	USD
CY2014	exc	Minimum Expectation Of Tax Position To Be Realized MinimumExpectationOfTaxPositionToBeRealized	0.5
CY2014	exc	Minority Interest Increase From Acquisition MinorityInterestIncreaseFromAcquisition	4000000	USD
CY2013	exc	Near Zero Emissions Coal Fueled Generation Plant NearZeroEmissionsCoalFueledGenerationPlant	166	MW
CY2014Q4	exc	Net Asset Liability Position After Contractual Right Of Offset NetAssetLiabilityPositionAfterContractualRightOfOffset	-90000000	USD
CY2013Q4	exc	Net Assets Pending Transactions Excluded NetAssetsPendingTransactionsExcluded	43000000	USD
CY2014Q4	exc	Net Assets Pending Transactions Excluded NetAssetsPendingTransactionsExcluded	42000000	USD
CY2012	exc	Net Income Loss Attributable To Noncontrolling Interest And Preferred Stock Dividends And Other Adjustments NetIncomeLossAttributableToNoncontrollingInterestAndPreferredStockDividendsAndOtherAdjustments	11000000	USD
CY2013	exc	Net Income Loss Attributable To Noncontrolling Interest And Preferred Stock Dividends And Other Adjustments NetIncomeLossAttributableToNoncontrollingInterestAndPreferredStockDividendsAndOtherAdjustments	10000000	USD
CY2014	exc	Net Income Loss Attributable To Noncontrolling Interest And Preferred Stock Dividends And Other Adjustments NetIncomeLossAttributableToNoncontrollingInterestAndPreferredStockDividendsAndOtherAdjustments	197000000	USD
CY2012	exc	Net Interest Income Expense Related To Uncertain Tax Positions NetInterestIncomeExpenseRelatedToUncertainTaxPositions	-1000000	USD
CY2013	exc	Net Interest Income Expense Related To Uncertain Tax Positions NetInterestIncomeExpenseRelatedToUncertainTaxPositions	391000000	USD
CY2014	exc	Net Interest Income Expense Related To Uncertain Tax Positions NetInterestIncomeExpenseRelatedToUncertainTaxPositions	-36000000	USD
CY2013Q4	exc	Net Interest Receivable Payable Related To Uncertain Tax Positions NetInterestReceivablePayableRelatedToUncertainTaxPositions	-349000000	USD
CY2014Q4	exc	Net Interest Receivable Payable Related To Uncertain Tax Positions NetInterestReceivablePayableRelatedToUncertainTaxPositions	-310000000	USD
CY2012	exc	Net Unrealized Gain Loss On Pledged Assets NetUnrealizedGainLossOnPledgedAssets	73000000	USD
CY2013	exc	Net Unrealized Gain Loss On Pledged Assets NetUnrealizedGainLossOnPledgedAssets	7000000	USD
CY2014	exc	Net Unrealized Gain Loss On Pledged Assets NetUnrealizedGainLossOnPledgedAssets	29000000	USD
CY2013Q4	exc	Noncurrent Liability Interest Rate Swap Avsr NoncurrentLiabilityInterestRateSwapAvsr	0	USD
CY2014Q4	exc	Notional Amount Interest Rate Swap Merger Acquiree NotionalAmountInterestRateSwapMergerAcquiree	1900000000	USD
CY2014	exc	Nuclear Decommissioning Annual Recovery Current NuclearDecommissioningAnnualRecoveryCurrent	24000000	USD
CY2012	exc	Nuclear Fuel Amortization NuclearFuelAmortization	848000000	USD
CY2013	exc	Nuclear Fuel Amortization NuclearFuelAmortization	921000000	USD
CY2014	exc	Nuclear Fuel Amortization NuclearFuelAmortization	1073000000	USD
CY2013Q4	exc	Nuclear Fuel Fabrication And Installation Stage NuclearFuelFabricationAndInstallationStage	947000000	USD
CY2014Q4	exc	Nuclear Fuel Fabrication And Installation Stage NuclearFuelFabricationAndInstallationStage	1003000000	USD
CY2014Q4	exc	Nuclear Insurance Annual Coverage Limit NuclearInsuranceAnnualCoverageLimit	18300000.0	USD
CY2014	exc	Nuclear Insurance Financial Protection Pool Surcharge On Nuclear Incident Assessment NuclearInsuranceFinancialProtectionPoolSurchargeOnNuclearIncidentAssessment	0.05
CY2013Q4	exc	Number Of Variable Interest Entities Consolidated NumberOfVariableInterestEntitiesConsolidated	4	VIE
CY2014Q4	exc	Number Of Variable Interest Entities Consolidated NumberOfVariableInterestEntitiesConsolidated	6	VIE
CY2013Q4	exc	Number Of Variable Interest Entities Not Consolidated NumberOfVariableInterestEntitiesNotConsolidated	8	VIE
CY2014Q4	exc	Number Of Variable Interest Entities Not Consolidated NumberOfVariableInterestEntitiesNotConsolidated	6	VIE
CY2014Q4	exc	Open Asbestos Related Personal Injury Claims OpenAsbestosRelatedPersonalInjuryClaims	255	Open_claim
CY2014Q1	exc	Operating Income Loss Quarter OperatingIncomeLossQuarter	168000000	USD
CY2014Q2	exc	Operating Income Loss Quarter OperatingIncomeLossQuarter	842000000	USD
CY2014Q3	exc	Operating Income Loss Quarter OperatingIncomeLossQuarter	1739000000	USD
CY2014Q4	exc	Operating Income Loss Quarter OperatingIncomeLossQuarter	348000000	USD
CY2014Q4	exc	Operating Leases Future Minimum Payments Due Beyond Five Years OperatingLeasesFutureMinimumPaymentsDueBeyondFiveYears	699000000	USD
CY2012	exc	Other Comprehensive Income Loss Net Of Tax Period Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodDecrease	0	USD
CY2013	exc	Other Comprehensive Income Loss Net Of Tax Period Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodDecrease	0	USD
CY2014	exc	Other Comprehensive Income Loss Net Of Tax Period Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodDecrease	116000000	USD
CY2014	exc	Other Comprehensive Income Loss Neto Of Tax Period Decrease OtherComprehensiveIncomeLossNetoOfTaxPeriodDecrease	-116000000	USD
CY2012	exc	Other Comprehensive Income Lossexcluding Equity Method Aoci Netof Tax OtherComprehensiveIncomeLossexcludingEquityMethodAOCINetofTax	-317000000	USD
CY2013	exc	Other Comprehensive Income Lossexcluding Equity Method Aoci Netof Tax OtherComprehensiveIncomeLossexcludingEquityMethodAOCINetofTax	727000000	USD
CY2014	exc	Other Comprehensive Income Lossexcluding Equity Method Aoci Netof Tax OtherComprehensiveIncomeLossexcludingEquityMethodAOCINetofTax	-528000000	USD
CY2012	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax	371000000	USD
CY2013	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax	-669000000	USD
CY2014	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax	497000000	USD
CY2012	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax	237000000	USD
CY2013	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax	-430000000	USD
CY2014	exc	Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax	317000000	USD
CY2012	exc	Other Comprehensive Income Unrealized Gain Loss On Equity Investments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnEquityInvestmentsArisingDuringPeriodTax	-1000000	USD
CY2013	exc	Other Comprehensive Income Unrealized Gain Loss On Equity Investments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnEquityInvestmentsArisingDuringPeriodTax	-71000000	USD
CY2014	exc	Other Comprehensive Income Unrealized Gain Loss On Equity Investments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnEquityInvestmentsArisingDuringPeriodTax	73000000	USD
CY2014	exc	Other Decommissioning Related Activity OtherDecommissioningRelatedActivity	-132000000	USD
CY2012	exc	Other Derivatives Not Designated As Hedging Instruments Change In Fair Value OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue	6000000	USD
CY2012	exc	Other Comprehensive Income Unrealized Income Loss On Equity Investments Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedIncomeLossOnEquityInvestmentsArisingDuringPeriodNetOfTax	1000000	USD
CY2013	exc	Other Comprehensive Income Unrealized Income Loss On Equity Investments Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedIncomeLossOnEquityInvestmentsArisingDuringPeriodNetOfTax	106000000	USD
CY2014	exc	Other Comprehensive Income Unrealized Income Loss On Equity Investments Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedIncomeLossOnEquityInvestmentsArisingDuringPeriodNetOfTax	8000000	USD
CY2012	exc	Other Decommissioning Related Activity OtherDecommissioningRelatedActivity	-145000000	USD
CY2013	exc	Other Decommissioning Related Activity OtherDecommissioningRelatedActivity	-169000000	USD
CY2013	exc	Other Derivatives Not Designated As Hedging Instruments Change In Fair Value OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue	-5000000	USD
CY2014	exc	Other Derivatives Not Designated As Hedging Instruments Change In Fair Value OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue	-92000000	USD
CY2012	exc	Other Derivatives Not Designated As Hedging Instruments Gain Loss Net OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet	533000000	USD
CY2013	exc	Other Derivatives Not Designated As Hedging Instruments Gain Loss Net OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet	507000000	USD
CY2014	exc	Other Derivatives Not Designated As Hedging Instruments Gain Loss Net OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet	-693000000	USD
CY2012	exc	Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement	-3000000	USD
CY2013	exc	Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement	-1000000	USD
CY2014	exc	Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement	-2000000	USD
CY2014Q4	exc	Other Miscellaneous Unamortized Energy Contracts OtherMiscellaneousUnamortizedEnergyContracts	26000000	USD
CY2012	exc	Other Noncash Income Expense Net OtherNoncashIncomeExpenseNet	-30000000	USD
CY2013	exc	Other Noncash Income Expense Net OtherNoncashIncomeExpenseNet	-53000000	USD
CY2014	exc	Other Noncash Income Expense Net OtherNoncashIncomeExpenseNet	-2000000	USD
CY2013Q4	exc	Other Nonconsolidated Variable Interest Entity Ownership Interests OtherNonconsolidatedVariableInterestEntityOwnershipInterests	234000000	USD
CY2014Q4	exc	Other Nonconsolidated Variable Interest Entity Ownership Interests OtherNonconsolidatedVariableInterestEntityOwnershipInterests	302000000	USD
CY2014Q4	exc	Parent Company Pension Opeb Regulatory Assets Noncurrent ParentCompanyPensionOpebRegulatoryAssetsNoncurrent	3256000000	USD
CY2012	exc	Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense	820000000	USD
CY2013	exc	Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense	825000000	USD
CY2014	exc	Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense	561000000	USD
CY2012	exc	Performance Share Awards Obligations To Be Settled In Cash PerformanceShareAwardsObligationsToBeSettledInCash	3000000	USD
CY2013	exc	Performance Share Awards Obligations To Be Settled In Cash PerformanceShareAwardsObligationsToBeSettledInCash	12000000	USD
CY2014	exc	Performance Share Awards Obligations To Be Settled In Cash PerformanceShareAwardsObligationsToBeSettledInCash	13000000	USD
CY2012Q4	exc	Performance Share Awards Weighted Average Grand Date Fair Value PerformanceShareAwardsWeightedAverageGrandDateFairValue	39.71	USD
CY2013Q4	exc	Performance Share Awards Weighted Average Grand Date Fair Value PerformanceShareAwardsWeightedAverageGrandDateFairValue	31.55	USD
CY2014Q4	exc	Performance Share Awards Weighted Average Grand Date Fair Value PerformanceShareAwardsWeightedAverageGrandDateFairValue	28.75	USD
CY2012	exc	Performance Shares Expense PerformanceSharesExpense	46000000	USD
CY2013	exc	Performance Shares Expense PerformanceSharesExpense	48000000	USD
CY2014	exc	Performance Shares Expense PerformanceSharesExpense	59000000	USD
CY2013	exc	Plant Retirement Cash Payments PlantRetirementCashPayments	64000000	USD
CY2014	exc	Plant Retirement Cash Payments PlantRetirementCashPayments	41000000	USD
CY2013Q4	exc	Por Allowance PorAllowance	30000000	USD
CY2014Q4	exc	Por Allowance PorAllowance	42000000	USD
CY2013Q4	exc	Por Gross Receivables PorGrossReceivables	263000000	USD
CY2014Q4	exc	Por Gross Receivables PorGrossReceivables	290000000	USD
CY2013Q4	exc	Por Net Receivables PorNetReceivables	233000000	USD
CY2014Q4	exc	Por Net Receivables PorNetReceivables	248000000	USD
CY2014	exc	Pre Tax Loss PreTaxLoss	1000000	USD
CY2012	exc	Preference Stock Acquired PreferenceStockAcquired	193000000	USD
CY2014Q1	exc	Proceeds From Lease Termination ProceedsFromLeaseTermination	335000000	USD
CY2012	exc	Proceeds From Lease Termination ProceedsFromLeaseTermination	0	USD
CY2013	exc	Proceeds From Lease Termination ProceedsFromLeaseTermination	0	USD
CY2014	exc	Proceeds From Lease Termination ProceedsFromLeaseTermination	335000000	USD
CY2012	exc	Proprietary Trading Activities Change In Fair Value ProprietaryTradingActivitiesChangeInFairValue	1000000	USD
CY2013	exc	Proprietary Trading Activities Change In Fair Value ProprietaryTradingActivitiesChangeInFairValue	1000000	USD
CY2014	exc	Proprietary Trading Activities Change In Fair Value ProprietaryTradingActivitiesChangeInFairValue	1000000	USD
CY2012	exc	Proprietary Trading Activities Gain Loss Net ProprietaryTradingActivitiesGainLossNet	96000000	USD
CY2013	exc	Proprietary Trading Activities Gain Loss Net ProprietaryTradingActivitiesGainLossNet	-39000000	USD
CY2014	exc	Proprietary Trading Activities Gain Loss Net ProprietaryTradingActivitiesGainLossNet	-26000000	USD
CY2012	exc	Proprietary Trading Activities Reclassification To Realized At Settlement ProprietaryTradingActivitiesReclassificationToRealizedAtSettlement	0	USD
CY2013	exc	Proprietary Trading Activities Reclassification To Realized At Settlement ProprietaryTradingActivitiesReclassificationToRealizedAtSettlement	-3000000	USD
CY2014	exc	Proprietary Trading Activities Reclassification To Realized At Settlement ProprietaryTradingActivitiesReclassificationToRealizedAtSettlement	3000000	USD
CY2014Q4	exc	Qualified Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year QualifiedDefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear	447000000	USD
CY2012	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	102000000	USD
CY2013	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	77000000	USD
CY2014	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	159000000	USD
CY2012	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	189000000	USD
CY2013	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	256000000	USD
CY2014	exc	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	216000000	USD
CY2014Q1	exc	Reclassificationsto Operating Income Loss ReclassificationstoOperatingIncomeLoss	5000000	USD
CY2014Q2	exc	Reclassificationsto Operating Income Loss ReclassificationstoOperatingIncomeLoss	13000000	USD
CY2014Q3	exc	Reclassificationsto Operating Income Loss ReclassificationstoOperatingIncomeLoss	339000000	USD
CY2012	exc	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	530000000	USD
CY2013	exc	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	546000000	USD
CY2014	exc	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	358000000	USD
CY2014	exc	Related Party Purchase Of Nuclear Output By Third Party Percentage RelatedPartyPurchaseOfNuclearOutputByThirdPartyPercentage	0.4999
CY2014	exc	Related Party Purchase Of Nuclear Output Percentage RelatedPartyPurchaseOfNuclearOutputPercentage	0.5001
CY2014	exc	Related Party Transaction Required Purchase Of Power Percentage RelatedPartyTransactionRequiredPurchaseOfPowerPercentage	0.85
CY2012	exc	Related Party Transaction Utilities Operating Expense Fuel Used Total RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal	1036000000	USD
CY2013	exc	Related Party Transaction Utilities Operating Expense Fuel Used Total RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal	1256000000	USD
CY2014	exc	Related Party Transaction Utilities Operating Expense Fuel Used Total RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal	531000000	USD
CY2013Q4	exc	Restricted Stock Units Obligations Not Yet Settled RestrictedStockUnitsObligationsNotYetSettled	77000000	USD
CY2014Q4	exc	Restricted Stock Units Obligations Not Yet Settled RestrictedStockUnitsObligationsNotYetSettled	85000000	USD
CY2014Q4	exc	Restricted Stock Units Obligations To Be Settled In Cash RestrictedStockUnitsObligationsToBeSettledInCash	59000000	USD
CY2014Q1	exc	Revenue Reduction RevenueReduction	8000000	USD
CY2012Q4	exc	Severance Benefits Obligations Balance SeveranceBenefitsObligationsBalance	111000000	USD
CY2013Q4	exc	Severance Benefits Obligations Balance SeveranceBenefitsObligationsBalance	53000000	USD
CY2014Q4	exc	Severance Benefits Obligations Balance SeveranceBenefitsObligationsBalance	12000000	USD
CY2012	exc	Share Based Compensation Components Other Stock Based Awards ShareBasedCompensationComponentsOtherStockBasedAwards	4000000	USD
CY2013	exc	Share Based Compensation Components Other Stock Based Awards ShareBasedCompensationComponentsOtherStockBasedAwards	6000000	USD
CY2014	exc	Share Based Compensation Components Other Stock Based Awards ShareBasedCompensationComponentsOtherStockBasedAwards	5000000	USD
CY2012	exc	Share Based Compensation Components Total In Expense After Tax ShareBasedCompensationComponentsTotalInExpenseAfterTax	71000000	USD
CY2013	exc	Share Based Compensation Components Total In Expense After Tax ShareBasedCompensationComponentsTotalInExpenseAfterTax	74000000	USD
CY2014	exc	Share Based Compensation Components Total In Expense After Tax ShareBasedCompensationComponentsTotalInExpenseAfterTax	80000000	USD
CY2012	exc	Share Based Compensation Components Total In Expense Pre Tax ShareBasedCompensationComponentsTotalInExpensePreTax	115000000	USD
CY2013	exc	Share Based Compensation Components Total In Expense Pre Tax ShareBasedCompensationComponentsTotalInExpensePreTax	118000000	USD
CY2014	exc	Share Based Compensation Components Total In Expense Pre Tax ShareBasedCompensationComponentsTotalInExpensePreTax	127000000	USD
CY2012	exc	Share Based Compensation Components Total In Operating And Maintenance Pre Tax ShareBasedCompensationComponentsTotalInOperatingAndMaintenancePreTax	115000000	USD
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CY2012	exc	Share Based Compensation Income Tax Benefit ShareBasedCompensationIncomeTaxBenefit	-44000000	USD
CY2013	exc	Share Based Compensation Income Tax Benefit ShareBasedCompensationIncomeTaxBenefit	-44000000	USD
CY2014	exc	Share Based Compensation Income Tax Benefit ShareBasedCompensationIncomeTaxBenefit	-47000000	USD
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CY2013	exc	Smart Grid Grant Reimbursements SmartGridGrantReimbursements	95000000	USD
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CY2012	exc	Stock Issued During Period Value Long Term Incentive Plan Activity StockIssuedDuringPeriodValueLongTermIncentivePlanActivity	126000000	USD
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CY2014	exc	Substation Kilovolt SubstationKilovolt	500000	V
CY2012	exc	Tax Benefit From Performance Share Awards Distributed TaxBenefitFromPerformanceShareAwardsDistributed	7000000	USD
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CY2014	exc	Tax Benefit From Stock Deferral Plan TaxBenefitFromStockDeferralPlan	0	USD
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CY2013Q4	exc	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	30985000000	USD
CY2014Q4	exc	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	33909000000	USD
CY2013Q4	exc	Total Deferred Debits And Other Assets TotalDeferredDebitsAndOtherAssets	22457000000	USD
CY2014Q4	exc	Total Deferred Debits And Other Assets TotalDeferredDebitsAndOtherAssets	22630000000	USD
CY2013Q4	exc	Total Long Term Investments TotalLongTermInvestments	3112000000	USD
CY2014Q4	exc	Total Long Term Investments TotalLongTermInvestments	544000000	USD
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CY2012	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	105000000	USD
CY2013	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	146000000	USD
CY2014	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	134000000	USD
CY2012	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	386000000	USD
CY2013	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	406000000	USD
CY2014	exc	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	180000000	USD
CY2013Q4	exc	Unrecognized Tax Benefits For Which Timing Of Ultimate Benefits Uncertain UnrecognizedTaxBenefitsForWhichTimingOfUltimateBenefitsUncertain	1387000000	USD
CY2014Q4	exc	Unrecognized Tax Benefits For Which Timing Of Ultimate Benefits Uncertain UnrecognizedTaxBenefitsForWhichTimingOfUltimateBenefitsUncertain	1129000000	USD
CY2012	exc	Unrecognized Tax Benefits Increases Decreases Only Affecting Timing UnrecognizedTaxBenefitsIncreasesDecreasesOnlyAffectingTiming	-88000000	USD
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CY2012	us-gaap	Inventory Write Down InventoryWriteDown	6000000	USD
CY2012	exc	Unrecognized Tax Benefits Interest Income UnrecognizedTaxBenefitsInterestIncome	15000000	USD
CY2013	exc	Unrecognized Tax Benefits Interest Income UnrecognizedTaxBenefitsInterestIncome	24000000	USD
CY2014	exc	Unrecognized Tax Benefits Interest Income UnrecognizedTaxBenefitsInterestIncome	40000000	USD
CY2012	exc	Utility Taxes UtilityTaxes	463000000	USD
CY2013	exc	Utility Taxes UtilityTaxes	449000000	USD
CY2014	exc	Utility Taxes UtilityTaxes	456000000	USD
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CY2014Q4	exc	Variable Interest Entity Consolidated Carrying Amount Current Assets VariableInterestEntityConsolidatedCarryingAmountCurrentAssets	1271000000	USD
CY2013Q4	exc	Variable Interest Entity Consolidated Carrying Amount Current Liabilities VariableInterestEntityConsolidatedCarryingAmountCurrentLiabilities	566000000	USD
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CY2014Q4	exc	Variable Interest Entity Consolidated Carrying Amount Non Current Assets VariableInterestEntityConsolidatedCarryingAmountNonCurrentAssets	7580000000	USD
CY2013Q4	exc	Variable Interest Entity Consolidated Carrying Amount Non Current Liabilities VariableInterestEntityConsolidatedCarryingAmountNonCurrentLiabilities	774000000	USD
CY2014Q4	exc	Variable Interest Entity Consolidated Carrying Amount Non Current Liabilities VariableInterestEntityConsolidatedCarryingAmountNonCurrentLiabilities	2730000000	USD
CY2014	exc	Weighted Average Period Non Vested Performance Share Awards Are Expected To Be Recognized Over WeightedAveragePeriodNonVestedPerformanceShareAwardsAreExpectedToBeRecognizedOver	P1Y7M6D
CY2013Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	2651000000	USD
CY2014Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	1491000000	USD
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CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	3048000000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2981000000	USD
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CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1633000000	USD
CY2014Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1539000000	USD
CY2013Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	490000000	USD
CY2014Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	555000000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13713000000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14742000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2767000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2040000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2684000000	USD
CY2012	us-gaap	Additions To Other Assets Amount AdditionsToOtherAssetsAmount	5789000000	USD
CY2013	us-gaap	Additions To Other Assets Amount AdditionsToOtherAssetsAmount	5395000000	USD
CY2014	us-gaap	Additions To Other Assets Amount AdditionsToOtherAssetsAmount	6077000000	USD
CY2012	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	1364000000	USD
CY2013	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	718000000	USD
CY2014	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	1054000000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	272000000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	311000000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1150000000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	478000000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	179000000	USD
CY2012	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	129000000	USD
CY2013	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	212000000	USD
CY2014	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	191000000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	14000000	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	20000000	shares
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	17000000	shares
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	240000000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	275000000	USD
CY2014	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	345000000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5194000000	USD
CY2014Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	7295000000	USD
CY2013Q4	us-gaap	Assets Assets	79924000000	USD
CY2014Q4	us-gaap	Assets Assets	86814000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	10137000000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	12097000000	USD
CY2014Q4	us-gaap	Assets Held For Sale At Carrying Value AssetsHeldForSaleAtCarryingValue	1800000000	USD
CY2013Q4	us-gaap	Assets Held For Sale Current AssetsHeldForSaleCurrent	14000000	USD
CY2014Q4	us-gaap	Assets Held For Sale Current AssetsHeldForSaleCurrent	147000000	USD
CY2013Q4	us-gaap	Assets Held In Trust Noncurrent AssetsHeldInTrustNoncurrent	458000000	USD
CY2014Q4	us-gaap	Assets Held In Trust Noncurrent AssetsHeldInTrustNoncurrent	319000000	USD
CY2013Q2	us-gaap	Bankruptcy Claims Amount Of Claims Filed BankruptcyClaimsAmountOfClaimsFiled	21000000	USD
CY2014Q2	us-gaap	Bridge Loan BridgeLoan	3200000000.0	USD
CY2014Q2	us-gaap	Bridge Loan BridgeLoan	7200000000.0	USD
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CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2560000.00
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1140000.00
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CY2011	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	974000000	USD
CY2012	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	2092000000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	30712000000	USD
CY2012	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	26700000000	USD
CY2013	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	28000000	USD
CY2014	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	19000000	USD
CY2012	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain Or Loss BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss	0	USD
CY2013	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain Or Loss BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss	0	USD
CY2014	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain Or Loss BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss	289000000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	160000000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-38000000	USD
CY2014	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	220000000	USD
CY2012	us-gaap	Capital Leases Income Statement Direct Financing Lease Revenue CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue	29000000	USD
CY2013	us-gaap	Capital Leases Income Statement Direct Financing Lease Revenue CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue	28000000	USD
CY2014	us-gaap	Capital Leases Income Statement Direct Financing Lease Revenue CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue	24000000	USD
CY2013Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	698000000	USD
CY2014Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	361000000	USD
CY2013Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Deferred Income CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome	767000000	USD
CY2014Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Deferred Income CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome	324000000	USD
CY2013Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty	1465000000	USD
CY2014Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty	685000000	USD
CY2000Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty	1600000000	USD
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	208000000	USD
CY2013	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	198000000	USD
CY2014	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	186000000	USD
CY2013Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	479000000	USD
CY2014Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	596000000	USD
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	964000000	USD
CY2013	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2014	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	140000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	123000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1016000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1486000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1609000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1878000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	1230000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	1119000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	470000000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	21018000000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	269000000	USD
CY2013Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	35000000	USD
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.1
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.46
CY2014	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.24
CY2013Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2014Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	857290484	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	859833343	shares
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	16741000000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	16709000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	854000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2456000000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1176000000	USD
CY2012	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	9121000000	USD
CY2013	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	9468000000	USD
CY2014	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	12472000000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	21242000000	USD
CY2014	us-gaap	Costs And Expenses CostsAndExpenses	25039000000	USD
CY2014	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	131000000	USD
CY2013Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	18760000000	USD
CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	20756000000	USD
CY2014Q4	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	2700000000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	384000000	USD
CY2014Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	441000000	USD
CY2013Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-19000000	USD
CY2014Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-37000000	USD
CY2013Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	8071000000	USD
CY2014Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	10537000000	USD
CY2013Q4	us-gaap	Decommissioning Liability Noncurrent DecommissioningLiabilityNoncurrent	305000000	USD
CY2014Q4	us-gaap	Decommissioning Liability Noncurrent DecommissioningLiabilityNoncurrent	155000000	USD
CY1999Q4	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	1200000000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11882000000	USD
CY2014Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	12217000000	USD
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	615000000	USD
CY2013	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	119000000	USD
CY2014	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	502000000	USD
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CY2014Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	-563000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	573000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	244000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	252000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	111000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	534000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	97000000	USD
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CY2013Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	509000000	USD
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CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	11612000000	USD
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CY2014	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	40000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	-173000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12143000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	1611000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	1824000000	USD
CY2013Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	1876000000	USD
CY2014Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	3366000000	USD
CY2014	us-gaap	Defined Benefit Plan Amount To Be Amortized From Accumulated Other Comprehensive Income Loss Next Fiscal Year DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear	-51000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	113000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	24000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	162000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	35000000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	37000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2014Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2012	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	67000000	USD
CY2013	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	85000000	USD
CY2014	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	103000000	USD
CY2012	us-gaap	Depreciation Depreciation	1712000000	USD
CY2013	us-gaap	Depreciation Depreciation	1893000000	USD
CY2014	us-gaap	Depreciation Depreciation	2080000000	USD
CY2012	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4079000000	USD
CY2013	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3779000000	USD
CY2014	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3868000000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1881000000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2153000000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2314000000	USD
CY2013Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	727000000	USD
CY2014Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1279000000	USD
CY2013Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	607000000	USD
CY2014Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	773000000	USD
CY2013Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	159000000	USD
CY2014Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	234000000	USD
CY2013Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	300000000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1254000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-168000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-208000000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1071000000	USD
CY2013Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.525
CY2014Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	648000000	USD
CY2013Q4	us-gaap	Due To Related Parties Noncurrent DueToRelatedPartiesNoncurrent	648000000	USD
CY2014Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	403000000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1322000000	USD
CY2013Q2	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2013Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2013Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2014Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2014Q2	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2014Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2014Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.31
CY2012	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	14000000	USD
CY2013	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	14000000	USD
CY2014	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	13000000	USD
CY2013Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	116000000	USD
CY2014Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	8000000	USD
CY2013Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	648000000	USD
CY2014Q4	us-gaap	Due To Related Parties Noncurrent DueToRelatedPartiesNoncurrent	648000000	USD
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.02
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.42
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.02
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.349
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.376
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.268
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	-0.024
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.020
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.018
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	-0.021
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Deductions Other EffectiveIncomeTaxRateReconciliationDeductionsOther	-0.024
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0.026
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.011
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.035
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.048
CY2014	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.011
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.019
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.011
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.002
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.002
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.002
CY2014Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	54000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	-8000000	USD
CY2013Q4	us-gaap	Energy Marketing Contract Liabilities Current EnergyMarketingContractLiabilitiesCurrent	261000000	USD
CY2014Q4	us-gaap	Energy Marketing Contract Liabilities Current EnergyMarketingContractLiabilitiesCurrent	238000000	USD
CY2013Q4	us-gaap	Energy Marketing Contract Liabilities Noncurrent EnergyMarketingContractLiabilitiesNoncurrent	266000000	USD
CY2014Q4	us-gaap	Energy Marketing Contract Liabilities Noncurrent EnergyMarketingContractLiabilitiesNoncurrent	211000000	USD
CY2013Q4	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	374000000	USD
CY2014Q4	us-gaap	Energy Marketing Contracts Assets Current EnergyMarketingContractsAssetsCurrent	254000000	USD
CY2013Q4	us-gaap	Energy Marketing Contracts Assets Noncurrent EnergyMarketingContractsAssetsNoncurrent	710000000	USD
CY2014Q4	us-gaap	Energy Marketing Contracts Assets Noncurrent EnergyMarketingContractsAssetsNoncurrent	549000000	USD
CY2013Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	276000000	USD
CY2014Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	579000000	USD
CY2013Q4	us-gaap	Equity Method Investment Aggregate Cost EquityMethodInvestmentAggregateCost	2295000000	USD
CY2014Q4	us-gaap	Equity Method Investment Aggregate Cost EquityMethodInvestmentAggregateCost	50000000	USD
CY2012	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2013	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2014	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	296000000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1925000000	USD
CY2014Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1751000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	66000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	67000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	69000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	40000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	39000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2489000000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-7000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	738000000	USD
CY2014Q2	us-gaap	Forward Contract Indexed To Issuers Equity Indexed Shares ForwardContractIndexedToIssuersEquityIndexedShares	23000000	shares
CY2013	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	2000000	USD
CY2014	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	18000000	USD
CY2013	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	13000000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	437000000	USD
CY2012	us-gaap	Gain Loss On Investments GainLossOnInvestments	157000000	USD
CY2013	us-gaap	Gain Loss On Investments GainLossOnInvestments	170000000	USD
CY2014	us-gaap	Gain Loss On Investments GainLossOnInvestments	210000000	USD
CY2012	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-7000000	USD
CY2013	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	13000000	USD
CY2014	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	437000000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	2625000000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	2672000000	USD
CY2014	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	47000000	USD
CY2014Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	75000000	USD
CY2014Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	9402000000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	284000000	USD
CY2013	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	171000000	USD
CY2014	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	687000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1798000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2773000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2486000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1798000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2773000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2486000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.42
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.01
CY2014	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.89
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-91000000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10000000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-20000000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-91000000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	10000000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-20000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	627000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1044000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	666000000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	35000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-171000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	112000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	314000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-632000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-90000000	USD
CY2013Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	4388000000	USD
CY2014Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	4550000000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	209000000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	544000000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	883000000	USD
CY2014	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-143000000	USD
CY2014	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-241000000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-26000000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	100000000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	380000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	368000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-102000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	558000000	USD
CY2012	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-71000000	USD
CY2013	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-12000000	USD
CY2014	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-47000000	USD
CY2014	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-2000000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-243000000	USD
CY2013	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	97000000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	318000000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	34000000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	43000000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	104000000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3000000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4000000	shares
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4000000	shares
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	67000000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	54000000	USD
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	63000000	USD
CY2012	us-gaap	Interest Costs Incurred InterestCostsIncurred	1003000000	USD
CY2013	us-gaap	Interest Costs Incurred InterestCostsIncurred	1423000000	USD
CY2014	us-gaap	Interest Costs Incurred InterestCostsIncurred	1144000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	891000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	1315000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	1024000000	USD
CY2012	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	37000000	USD
CY2013	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	41000000	USD
CY2014	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	41000000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	761000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	866000000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	940000000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	234000000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	240000000	USD
CY2012	us-gaap	Interest Revenue Expense Net InterestRevenueExpenseNet	928000000	USD
CY2013	us-gaap	Interest Revenue Expense Net InterestRevenueExpenseNet	1356000000	USD
CY2014	us-gaap	Interest Revenue Expense Net InterestRevenueExpenseNet	1065000000	USD
CY2013Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	829000000	USD
CY2014Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	1024000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	56984000000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	62681000000	USD
CY2013	us-gaap	Inventory Write Down InventoryWriteDown	9000000	USD
CY2014	us-gaap	Inventory Write Down InventoryWriteDown	5000000	USD
CY2014	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	421000000	USD
CY2013	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	18000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	79924000000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	86814000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1085000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-826000000	USD
CY2014Q2	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	60000000	USD
CY2014Q2	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	35000000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	20000000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	8000000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	1000000	USD
CY2013Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	15000000	USD
CY2014Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	5000000	USD
CY2014Q2	us-gaap	Junior Subordinated Long Term Notes JuniorSubordinatedLongTermNotes	1150000000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	930000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	806000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	865000000	USD
CY2014Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	1190000000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7728000000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	8762000000	USD
CY2014Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	0	USD
CY2014Q4	us-gaap	Line Of Credit Facility Capacity Available For Trade Purchases LineOfCreditFacilityCapacityAvailableForTradePurchases	6771000000	USD
CY2014	us-gaap	Line Of Credit Facility Covenant Terms LineOfCreditFacilityCovenantTerms	2.50 to 1
CY2014Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	7310000000	USD
CY2014Q2	us-gaap	Long Term Debt LongTermDebt	131000000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	21404000000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1509000000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1802000000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1509000000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1802000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	13599000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1739000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	982000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1415000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2400000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1269000000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	17623000000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	19362000000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	1187000000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	544000000	USD
CY2014Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	44000000	USD
CY2014Q4	us-gaap	Loss Contingency Range Of Possible Loss Maximum LossContingencyRangeOfPossibleLossMaximum	105000000	USD
CY2012	us-gaap	Loss On Contract Termination LossOnContractTermination	85000000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	15000000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	1332000000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	63000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	411000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4576000000	USD
CY2014	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	9	Reportable_segment
CY2012	us-gaap	Operating Expenses OperatingExpenses	21018000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5394000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4599000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6131000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6343000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4457000000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1160000000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	21242000000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	25039000000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1623000000	USD
CY2012	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	141000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	2373000000	USD
CY2014	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	44000000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	114000000	USD
CY2014	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	1548000000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-575000000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-896000000	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-610000000	USD
CY2013Q4	us-gaap	Notes Receivable Net NotesReceivableNet	19000000	USD
CY2014Q4	us-gaap	Notes Receivable Net NotesReceivableNet	15000000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	3669000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	3096000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1158000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	99000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	70000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	86000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	102000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	102000000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	335000000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	113000000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	652000000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	865000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	964000000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1160000000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-10000000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-9000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-30000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	19000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	791000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-528000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-317000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	727000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-644000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	270000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	78000000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1249000000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1065000000	USD
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-147000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	110000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	133000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	93000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	-2000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationTax	2000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	192000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-468000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	412000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-120000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-248000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-148000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	68000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	166000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	96000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1000000	USD
CY2012	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	7961000000	USD
CY2013	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	7270000000	USD
CY2014	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	8568000000	USD
CY2012	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	1881000000	USD
CY2013	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	2153000000	USD
CY2014	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	2314000000	USD
CY2012	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	131000000	USD
CY2013	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	159000000	USD
CY2014	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	200000000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	858000000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1123000000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2540000000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2147000000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1364000000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-718000000	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1054000000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	32000000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	32000000	USD
CY2014	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	9000000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	353000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	460000000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	455000000	USD
CY2013Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	2190000000	USD
CY2014Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	1742000000	USD
CY2013Q4	us-gaap	Other Receivables OtherReceivables	1175000000	USD
CY2014Q4	us-gaap	Other Receivables OtherReceivables	1227000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-136000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-112000000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	88000000	USD
CY2014	us-gaap	Payments For Restructuring PaymentsForRestructuring	24000000	USD
CY2013	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2014	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	421000000	USD
CY2012	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	21000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1716000000	USD
CY2012	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	28000000	USD
CY2013	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	6000000	USD
CY2013	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2014	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	386000000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	13000000	USD
CY2013	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	4000000	USD
CY2014	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	3000000	USD
CY2012	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7483000000	USD
CY2013	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4450000000	USD
CY2014	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7551000000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5789000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5395000000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6077000000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	462000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	422000000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	617000000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	820000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	825000000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	560000000	USD
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	1900000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	1900000	shares
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	193000000	USD
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue	193000000	USD
CY2013Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	190000000	USD
CY2014Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	190000000	USD
CY2012	us-gaap	Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost1 PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost1	-17000000	USD
CY2013	us-gaap	Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost1 PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost1	0	USD
CY2014	us-gaap	Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost1 PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost1	0	USD
CY2012	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
CY2013	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	115000000	USD
CY2014	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	13000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2027000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2055000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3463000000	USD
CY2014Q1	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	335000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-111000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-119000000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-178000000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-197000000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	332000000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	122000000	USD
CY2012	us-gaap	Proceeds From Repurchase Of Redeemable Preferred Stock ProceedsFromRepurchaseOfRedeemablePreferredStock	0	USD
CY2013	us-gaap	Proceeds From Repurchase Of Redeemable Preferred Stock ProceedsFromRepurchaseOfRedeemablePreferredStock	-93000000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	1729000000	USD
CY2013	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	22000000	USD
CY2014	us-gaap	Proceeds From Repurchase Of Redeemable Preferred Stock ProceedsFromRepurchaseOfRedeemablePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	7265000000	USD
CY2014Q1	us-gaap	Profit Loss ProfitLoss	90000000	USD
CY2014Q2	us-gaap	Profit Loss ProfitLoss	522000000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	993000000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	4217000000	USD
CY2014	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	7000000	USD
CY2014	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	7396000000	USD
CY2014Q4	us-gaap	Profit Loss ProfitLoss	18000000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	1820000000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	490000000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	738000000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	495000000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	371000000	USD
CY2013	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	32000000	USD
CY2014	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	1719000000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	47000000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	19000000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	7000000	USD
CY2012	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	72000000	USD
CY2013	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	47000000	USD
CY2014	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	35000000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	1171000000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	-4000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	61043000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	66829000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	47330000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52087000000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	164000000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	101000000	USD
CY2014	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	156000000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	17000000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	22000000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	21000000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	25000000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	35000000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	37000000	USD
CY2012	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	227000000	USD
CY2013	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	302000000	USD
CY2014	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	396000000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	64000000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	116000000	USD
CY2013Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	760000000	USD
CY2014Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	847000000	USD
CY2013Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	5910000000	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	6076000000	USD
CY2013Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	327000000	USD
CY2014Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	310000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1145000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1589000000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1545000000	USD
CY2012	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	15000000	USD
CY2013	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	210000000	USD
CY2014	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	0	USD
CY2013Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	167000000	USD
CY2014Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	271000000	USD
CY2012	us-gaap	Restricted Stock Expense RestrictedStockExpense	50000000	USD
CY2013	us-gaap	Restricted Stock Expense RestrictedStockExpense	61000000	USD
CY2014	us-gaap	Restricted Stock Expense RestrictedStockExpense	61000000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10358000000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10910000000	USD
CY2012	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	48000000	USD
CY2013	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	70000000	USD
CY2014	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	23000000	USD
CY2012	us-gaap	Revenues Revenues	23489000000	USD
CY2013Q1	us-gaap	Revenues Revenues	6082000000	USD
CY2013Q2	us-gaap	Revenues Revenues	6141000000	USD
CY2013Q3	us-gaap	Revenues Revenues	6502000000	USD
CY2013Q4	us-gaap	Revenues Revenues	6163000000	USD
CY2013	us-gaap	Revenues Revenues	24888000000	USD
CY2014Q1	us-gaap	Revenues Revenues	7237000000	USD
CY2014Q2	us-gaap	Revenues Revenues	6024000000	USD
CY2014Q3	us-gaap	Revenues Revenues	6912000000	USD
CY2014Q4	us-gaap	Revenues Revenues	7255000000	USD
CY2014	us-gaap	Revenues Revenues	27429000000	USD
CY2012	us-gaap	Severance Costs1 SeveranceCosts1	124000000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	94000000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	120000000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	91000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0528
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0130
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.2320
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	19000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.18
CY2013Q1	us-gaap	Share Price SharePrice	34.48
CY2013Q2	us-gaap	Share Price SharePrice	30.88
CY2013Q3	us-gaap	Share Price SharePrice	29.64
CY2013Q4	us-gaap	Share Price SharePrice	27.39
CY2014Q1	us-gaap	Share Price SharePrice	33.56
CY2014Q2	us-gaap	Share Price SharePrice	36.48
CY2014Q3	us-gaap	Share Price SharePrice	34.09
CY2014Q4	us-gaap	Share Price SharePrice	37.08
CY2012Q4	us-gaap	Shares Issued SharesIssued	889525000	shares
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2011Q4	us-gaap	Shares Issued SharesIssued	698112000	shares
CY2013Q4	us-gaap	Shares Issued SharesIssued	892034000	shares
CY2014Q4	us-gaap	Shares Issued SharesIssued	894568000	shares
CY2013	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	1064000	shares
CY2014	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	960000	shares
CY2014Q2	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	35
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	341000000	USD
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	460000000	USD
CY2013Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1021000000	USD
CY2014Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1021000000	USD
CY2014	us-gaap	Stock Issued1 StockIssued1	3400000000	USD
CY2012	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	188124000	shares
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	857000	shares
CY2012	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	7365000000	USD
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	26000000	USD
CY2013	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	28000000	USD
CY2014	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	35000000	USD
CY2012	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	15000000	USD
CY2013	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	3000000	USD
CY2014	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	2000000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	22732000000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	22608000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14388000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21730000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	22940000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	24133000000	USD
CY2014	us-gaap	Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions	1
CY2013	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	14000000	USD
CY2014	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	24000000	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1019000000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1095000000	USD
CY2014	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1154000000	USD
CY2012	us-gaap	Taxes Other TaxesOther	198000000	USD
CY2013	us-gaap	Taxes Other TaxesOther	185000000	USD
CY2014	us-gaap	Taxes Other TaxesOther	102000000	USD
CY2013Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	315000000	USD
CY2014Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	285000000	USD
CY2014Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	305000000	USD
CY2014Q2	us-gaap	Temporary Equity Share Subscriptions TemporaryEquityShareSubscriptions	57500000.0	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2327000000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2327000000	USD
CY2013Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	1151000000	USD
CY2014Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	1381000000	USD
CY2012	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	604000000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	445000000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-716000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	807000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1024000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2175000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1829000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	6000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	15000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	91000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	493000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	6000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	35000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	90000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	195000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	34000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	19000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities	188000000	USD
CY2013Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	265000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	88000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	788000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	701000000	USD
CY2013Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	2389000000	USD
CY2014Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	8851000000	USD
CY2013Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	1340000000	USD
CY2014Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	3341000000	USD
CY2013Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	460000000	USD
CY2014Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	597000000	USD
CY2013Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	140000000	USD
CY2014Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	286000000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	819000000	shares
CY2013Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	855000000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	860000000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	860000000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	860000000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	860000000	shares
CY2014Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	861000000	shares
CY2014Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	864000000	shares
CY2014Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	863000000	shares
CY2014Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	868000000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	864000000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	816000000	shares
CY2013Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	855000000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	856000000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	857000000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	856000000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	856000000	shares
CY2014Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	858000000	shares
CY2014Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	860000000	shares
CY2014Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	861000000	shares
CY2014Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	861000000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	860000000	shares
CY2014	exc	Scheduleofjointlyownedelectricutilityplanttextblock Scheduleofjointlyownedelectricutilityplanttextblock	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">Jointly Owned Electric Utility Plant (Exelon, Generation, PECO and BGE)</font></div><div style="line-height:120%;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">Exelon, Generation, PECO and BGE’s undivided ownership interests in jointly owned electric plants and transmission facilities at </font><font style="font-family:Arial;font-size:10pt;">December 31, 2014</font><font style="font-family:Arial;font-size:10pt;"> and </font><font style="font-family:Arial;font-size:10pt;">2013</font><font style="font-family:Arial;font-size:10pt;"> were as follows:</font></div><div style="line-height:120%;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="40" rowspan="1"></td></tr><tr><td width="15%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="7%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="7%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="5%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="6%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="6%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="7%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="4%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="5%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="5%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td><td width="4%" rowspan="1" colspan="1"></td><td width="1%" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="15" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Nuclear generation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="11" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Fossil fuel generation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="7" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Transmission</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Other</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Quad Cities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Peach</font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Bottom</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Salem </font><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(a)</sup></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Nine Mile Point Unit 2</font><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(g)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Keystone</font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;"><br clear="none"/></font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(f)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Conemaugh</font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;"><br clear="none"/></font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(f)</sup></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Wyman</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">PA </font><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(b)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">DE/NJ </font><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(c)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Other </font><font style="font-family:Arial;font-size:7pt;font-weight:bold;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(d)</sup></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Operator</font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Generation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Generation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">PSEG</font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Nuclear</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Generation</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">GenOn</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">GenOn</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">FP&L</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">First</font></div><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Energy</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">PSEG</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Ownership interest</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">75.00</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">50.00</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">42.59</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">82.00</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">5.89</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Various</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">42.55</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">44.24</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">%</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Exelon’s share at December 31, 2014:</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Plant </font><font style="font-family:Arial;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(e)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">995</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">1,095</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">531</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">676</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">3</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">14</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">64</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">2</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Accumulated </font></div><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">   depreciation </font><font style="font-family:Arial;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(e)</sup></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">266</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">343</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">150</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">14</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">3</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">7</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">34</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">1</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Construction work</font></div><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">   in progress</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">15</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">133</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">29</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">48</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;font-weight:bold;">Exelon’s share at December 31, 2013:</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Plant </font><font style="font-family:Arial;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(e)</sup></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">941</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">883</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">501</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:middle;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:middle;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">725</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:middle;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">399</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">3</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">14</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">64</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">2</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Accumulated depreciation </font><font style="font-family:Arial;font-size:7pt;"><sup style="vertical-align:top;line-height:120%;font-size:5pt">(e)</sup></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">226</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">326</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">134</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">268</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">220</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">3</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">7</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">34</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">1</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">Construction work</font></div><div style="text-align:left;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">   in progress</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">27</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">174</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">24</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">6</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="3" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">121</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:7pt;"><font style="font-family:Arial;font-size:7pt;">—</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:7.5pt;"><font style="font-family:inherit;font-size:7.5pt;">________________________</font></div><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(a)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">Generation also owns a proportionate share in the fossil fuel combustion turbine at Salem, which is fully depreciated. The gross book value was </font><font style="font-family:Arial;font-size:7.5pt;">$3 million</font><font style="font-family:Arial;font-size:7.5pt;"> at </font><font style="font-family:Arial;font-size:7.5pt;">December 31, 2014</font><font style="font-family:Arial;font-size:7.5pt;"> and </font><font style="font-family:Arial;font-size:7.5pt;">2013</font><font style="font-family:Arial;font-size:7.5pt;">.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(b)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">PECO and BGE own a </font><font style="font-family:Arial;font-size:7.5pt;">22%</font><font style="font-family:Arial;font-size:7.5pt;"> and </font><font style="font-family:Arial;font-size:7.5pt;">7%</font><font style="font-family:Arial;font-size:7.5pt;"> share, respectively, in </font><font style="font-family:Arial;font-size:7.5pt;">127</font><font style="font-family:Arial;font-size:7.5pt;"> miles of </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV lines located in Pennsylvania; PECO and BGE also own a </font><font style="font-family:Arial;font-size:7.5pt;">20.7%</font><font style="font-family:Arial;font-size:7.5pt;"> and </font><font style="font-family:Arial;font-size:7.5pt;">10.56%</font><font style="font-family:Arial;font-size:7.5pt;"> share, respectively, of a </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV substation immediately outside of the Conemaugh fossil generating station which supplies power to the </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV lines including, but not limited to, the lines noted above.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(c)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">PECO owns a </font><font style="font-family:Arial;font-size:7.5pt;">42.55%</font><font style="font-family:Arial;font-size:7.5pt;"> share in </font><font style="font-family:Arial;font-size:7.5pt;">131</font><font style="font-family:Arial;font-size:7.5pt;"> miles of </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV lines located in Delaware and New Jersey as well as a </font><font style="font-family:Arial;font-size:7.5pt;">42.55%</font><font style="font-family:Arial;font-size:7.5pt;"> share in a </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV substation immediately outside of the Salem nuclear generating station in New Jersey which supplies power to the </font><font style="font-family:Arial;font-size:7.5pt;">500</font><font style="font-family:Arial;font-size:7.5pt;">kV lines including, but not limited to, the lines noted above.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(d)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">Generation has a </font><font style="font-family:Arial;font-size:7.5pt;">44.24%</font><font style="font-family:Arial;font-size:7.5pt;"> ownership interest in assets located at Merrill Creek Reservoir located in New Jersey.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(e)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">Excludes asset retirement costs.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(f)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">As of December 31, 2014, Generation sold its ownership interest in Keystone and Conemaugh. At December 31, 2013, Generation held </font><font style="font-family:Arial;font-size:7.5pt;">41.98%</font><font style="font-family:Arial;font-size:7.5pt;"> and </font><font style="font-family:Arial;font-size:7.5pt;">31.28%</font><font style="font-family:Arial;font-size:7.5pt;"> ownership interest in Keystone and Conemaugh, respectively. See Note </font><font style="font-family:Arial;font-size:7.5pt;">4</font><font style="font-family:Arial;font-size:7.5pt;">—</font><font style="font-family:Arial;font-size:7.5pt;">Mergers, Acquisitions, and Dispositions</font><font style="font-family:Arial;font-size:7.5pt;"> for additional information. </font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:7.5pt;padding-left:0px;"><font style="font-family:Arial;font-size:7.5pt;">(g)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:7.5pt;"><font style="font-family:Arial;font-size:7.5pt;">On April 1, 2014, Generation assumed operational control of CENG's nuclear fleet, and as of that date, CENG’s operations are consolidated into Generation’s financial statements. As of </font><font style="font-family:Arial;font-size:7.5pt;">December 31, 2013</font><font style="font-family:Arial;font-size:7.5pt;">, Generation’s ownership interest in CENG, including Nine Mile Point, was treated as an equity method investment, and thus did not represent an undivided Interest. See Note </font><font style="font-family:Arial;font-size:7.5pt;">5</font><font style="font-family:Arial;font-size:7.5pt;"> - </font><font style="font-family:Arial;font-size:7.5pt;">Investment in Constellation Energy Nuclear Group, LLC</font><font style="font-family:Arial;font-size:7.5pt;"> for additional information.</font></div></td></tr></table><div style="line-height:120%;text-align:justify;padding-left:24px;text-indent:-24px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">Exelon’s, Generation’s, PECO’s and BGE’s undivided ownership interests are financed with their funds and all operations are accounted for as if such participating interests were wholly owned facilities. Exelon’s, Generation’s, PECO’s and BGE’s share of direct expenses of the jointly owned plants are included in Purchased power and fuel and Operating and maintenance expenses on Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income and in Operating and maintenance expenses on PECO’s and BGE’s Consolidated Statements of Operations and Comprehensive Income.</font></div></div>
CY2014	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">Guarantees (Exelon, Generation, ComEd, PECO and BGE)</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">The Registrants recognize, at the inception of a guarantee, a liability for the fair market value of the obligations they have undertaken in issuing the guarantee, including the ongoing obligation to perform over the term of the guarantee in the event that the specified triggering events or conditions occur.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">The liability that is initially recognized at the inception of the guarantee is reduced as the Registrants are released from risk under the guarantee. Depending on the nature of the guarantee, the release from risk of the Registrant may be recognized only upon the expiration or settlement of the guarantee or by a systematic and rational amortization method over the term of the guarantee. See Note </font><font style="font-family:Arial;font-size:10pt;">22</font><font style="font-family:Arial;font-size:10pt;"> — </font><font style="font-family:Arial;font-size:10pt;">Commitments and Contingencies</font><font style="font-family:Arial;font-size:10pt;"> for additional information.</font></div></div>
CY2014	us-gaap	Reclassifications Reclassifications	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">Reclassifications (Exelon, Generation, ComEd, PECO and BGE)</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">Certain prior year amounts in the registrants' Consolidated Statements of Operations and Comprehensive Income, Consolidated Balance Sheets and Consolidated Statements of Cash Flows have been reclassified between line items for comparative purposes. The reclassifications did not affect any of the Registrants’ net income, financial positions, or cash flows from operating activities.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div></div>
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">Use of Estimates (Exelon, Generation, ComEd, PECO and BGE)</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">The preparation of financial statements of each of the Registrants in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Areas in which significant estimates have been made include, but are not limited to, the accounting for nuclear decommissioning costs and other AROs, pension and other postretirement benefits, the application of purchase accounting, inventory reserves, allowance for uncollectible accounts, goodwill and asset impairments, derivative instruments, unamortized energy contracts, fixed asset depreciation, environmental costs and other loss contingencies, taxes and unbilled energy revenues. Actual results could differ from those estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001193125-15-049964-index-headers.html	Edgar Link	pending
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$EXC
EXELON CORP Stock $exc

2014 Q4 Form 10-K Financial Statement

#000119312515049964 Filed on February 13, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXC EXELON CORP Stock $exc

2014 Q4 Form 10-K Financial Statement

#000119312515049964 Filed on February 13, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXC
EXELON CORP Stock $exc