$FE
FirstEnergy Corp Stock $fe

$fe Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000103129614000010 Filed on February 27, 2014

Income Statement

Concept	2013 Q4	2012 Q4	2012 Q3
Revenue	$3.633B	$3.493B	$4.052B
YoY Change	4.01%	-9.51%	-14.13%
Cost Of Revenue	$1.031B	$879.0M	$1.063B
YoY Change	17.29%	-21.52%	-21.2%
Gross Profit	$2.602B	$2.614B	$2.989B
YoY Change	-0.46%	-2.17%	-11.31%
Gross Profit Margin	71.62%	74.84%	73.77%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$293.0M	$285.0M	$333.0M
YoY Change	2.81%	0.71%	17.25%
% of Gross Profit	11.26%	10.9%	11.14%
Operating Expenses	$2.167B	$1.951B	$2.089B
YoY Change	11.07%	-1.56%	-9.68%
Operating Profit	$387.0M	-$39.00M	$902.0M
YoY Change	-1092.31%	-83.04%	-14.66%
Interest Expense	-$161.0M	-$312.0M	$230.0M
YoY Change	-48.4%	44.44%	-213.86%
% of Operating Profit	-41.6%		25.5%
Other Income/Expense, Net			-$173.0M
YoY Change			-14.36%
Pretax Income	$208.0M	-$258.0M	$729.0M
YoY Change	-180.62%	-309.76%	-14.74%
Income Tax	$66.00M	-$105.0M	$307.0M
% Of Pretax Income	31.73%		42.11%
Net Earnings	$142.0M	-$148.0M	$425.0M
YoY Change	-195.95%	-251.02%	-20.11%
Net Earnings / Revenue	3.91%	-4.24%	10.49%
Basic Earnings Per Share	$0.34	-$0.35	$1.02
Diluted Earnings Per Share	$0.34	-$0.35	$1.01
COMMON SHARES
Basic Shares Outstanding	418.2M shares	418.2M shares	417.0M shares
Diluted Shares Outstanding			419.0M shares

Balance Sheet

Concept	2013 Q4	2012 Q4	2012 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$218.0M	$172.0M	$150.0M
YoY Change	26.74%	-14.85%	-29.58%
Cash & Equivalents	$218.0M	$172.0M	$150.0M
Short-Term Investments
Other Short-Term Assets	$212.0M	$208.0M	$190.0M
YoY Change	1.92%	70.49%	0.53%
Inventory	$752.0M	$861.0M	$875.0M
Prepaid Expenses
Receivables	$1.720B	$1.614B	$1.604B
Other Receivables	$198.0M	$315.0M	$227.0M
Total Short-Term Assets	$4.013B	$3.768B	$3.709B
YoY Change	6.5%	12.31%	3.29%
LONG-TERM ASSETS
Property, Plant & Equipment	$33.25B	$33.04B	$31.44B
YoY Change	0.65%	8.9%	7.43%
Goodwill	$6.418B	$6.447B	$6.444B
YoY Change	-0.45%	0.09%	0.25%
Intangibles
YoY Change
Long-Term Investments	$903.0M	$990.0M	$1.248B
YoY Change	-8.79%	-29.79%	16.42%
Other Assets	$1.548B	$1.719B	$1.580B
YoY Change	-9.95%	4.75%	110.39%
Total Long-Term Assets	$9.820B	$10.50B	$10.14B
YoY Change	-6.44%	3.8%	-1.29%
TOTAL ASSETS
Total Short-Term Assets	$4.013B	$3.768B	$3.709B
Total Long-Term Assets	$9.820B	$10.50B	$10.14B
Total Assets	$50.42B	$50.49B	$48.74B
YoY Change	-0.14%	6.5%	0.13%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.250B	$1.599B	$925.0M
YoY Change	-21.83%	36.2%	-8.33%
Accrued Expenses	$351.0M	$331.0M	$313.0M
YoY Change	6.04%	-13.8%	-10.57%
Deferred Revenue
YoY Change
Short-Term Debt	$3.404B	$1.969B	$1.604B
YoY Change	72.88%
Long-Term Debt Due	$1.415B	$1.999B	$1.473B
YoY Change	-29.21%	23.32%	-19.95%
Total Short-Term Liabilities	$7.637B	$7.605B	$5.920B
YoY Change	0.42%	56.64%	21.74%
LONG-TERM LIABILITIES
Long-Term Debt	$15.83B	$15.18B	$15.63B
YoY Change	4.3%	-3.42%	-1.24%
Other Long-Term Liabilities	$1.778B	$1.924B	$1.904B
YoY Change	-7.59%	-7.14%	-10.48%
Total Long-Term Liabilities	$14.26B	$14.62B	$13.74B
YoY Change	-2.44%	8.63%	9.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.637B	$7.605B	$5.920B
Total Long-Term Liabilities	$14.26B	$14.62B	$13.74B
Total Liabilities	$21.90B	$22.22B	$19.66B
YoY Change	-1.46%	21.36%	12.86%
SHAREHOLDERS EQUITY
Retained Earnings	$2.590B	$2.888B	$3.266B
YoY Change	-10.32%	-5.22%	-29.88%
Common Stock	$9.776B	$9.769B	$9.758B
YoY Change	0.07%	0.04%	-0.25%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$12.69B	$13.08B	$13.43B
YoY Change
Total Liabilities & Shareholders Equity	$50.42B	$50.49B	$48.74B
YoY Change	-0.14%	6.69%	4.45%

Cashflow Statement

Concept	2013 Q4	2012 Q4	2012 Q3
OPERATING ACTIVITIES
Net Income	$142.0M	-$148.0M	$425.0M
YoY Change	-195.95%	-251.02%	-20.11%
Depreciation, Depletion And Amortization	$293.0M	$285.0M	$333.0M
YoY Change	2.81%	0.71%	17.25%
Cash From Operating Activities	$991.0M	$1.044B	$1.214B
YoY Change	-5.08%	25.18%	1.34%
INVESTING ACTIVITIES
Capital Expenditures	-$769.0M	-$1.071B	-$892.0M
YoY Change	-28.2%	42.99%	74.56%
Acquisitions
YoY Change
Other Investing Activities	-$49.00M	-$96.00M	-$97.00M
YoY Change	-48.96%	-127.59%	-119.76%
Cash From Investing Activities	-$818.0M	-$1.167B	-$989.0M
YoY Change	-29.91%	191.02%	4845.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-177.0M	145.0M	-169.0M
YoY Change	-222.07%	-127.78%	-87.6%
NET CHANGE
Cash From Operating Activities	991.0M	1.044B	1.214B
Cash From Investing Activities	-818.0M	-1.167B	-989.0M
Cash From Financing Activities	-177.0M	145.0M	-169.0M
Net Change In Cash	-4.000M	22.00M	56.00M
YoY Change	-118.18%	-124.72%	-130.27%
FREE CASH FLOW
Cash From Operating Activities	$991.0M	$1.044B	$1.214B
Capital Expenditures	-$769.0M	-$1.071B	-$892.0M
Free Cash Flow	$1.760B	$2.115B	$2.106B
YoY Change	-16.78%	33.61%	23.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	34000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	97000000	USD
CY2013Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	2359126	shares
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1250000000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1599000000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1720000000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1614000000	USD
CY2013Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	351000000	USD
CY2012Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	331000000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	543000000	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	485000000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13280000000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12467000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	284000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	385000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	425000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	426000000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	9776000000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	9769000000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	74000000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	89000000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	60000000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	100000000	USD
CY2011	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	201000000	USD
CY2013	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	209000000	USD
CY2012	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	210000000	USD
CY2012	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	307000000	USD
CY2011	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	474000000	USD
CY2013	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	539000000	USD
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2000000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	413000000	USD
CY2013	us-gaap	Asset Impairment Charges AssetImpairmentCharges	795000000	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2013Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	473000000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1599000000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1678000000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1497000000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	104000000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	115000000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	2201000000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	2204000000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	18000000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	2000000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-18000000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1678000000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1599000000	USD
CY2013Q4	us-gaap	Assets Assets	50424000000	USD
CY2012Q4	us-gaap	Assets Assets	50494000000	USD
CY2011Q4	us-gaap	Assets Assets	47410000000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	3768000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	3887000000	USD
CY2012Q4	us-gaap	Assets Held For Sale Long Lived AssetsHeldForSaleLongLived	0	USD
CY2013Q4	us-gaap	Assets Held For Sale Long Lived AssetsHeldForSaleLongLived	235000000	USD
CY2013Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	9946000000	USD
CY2012Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	10496000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	179000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	92000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	229000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	2047000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	4207000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	2980000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	83000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	46000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	71000000	USD
CY2011Q1	us-gaap	Business Acquisition Cost Of Acquired Entity Liabilities Incurred BusinessAcquisitionCostOfAcquiredEntityLiabilitiesIncurred	27000000	USD
CY2011Q1	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	4327000000	USD
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2.34
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2.33
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets	568000000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	979000000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	17449000000	USD
CY2011Q1	us-gaap	Business Combination Consideration Transferred BusinessCombinationConsiderationTransferred	4354000000	USD
CY2013Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	188000000	USD
CY2012Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	176000000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	34000000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	154000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	222000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	40000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	23000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	30000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	34000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	38000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	57000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	34000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	188000000	USD
CY2012Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	28272000000	USD
CY2013Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	28526000000	USD
CY2013	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.20
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.65
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CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
CY2011	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	590000000	USD
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	218000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	172000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	202000000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1019000000	USD
CY2013	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	10000000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2013Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2013Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2013Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2012Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2012Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2012Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	490000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	490000000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	418628559	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	418628559	shares
CY2013Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	42000000	USD
CY2012Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	42000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	729000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	886000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	291000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-16000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	870000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	730000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	291000000	USD
CY2013Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	2304000000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	2293000000	USD
CY2013	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	3963000000	USD
CY2011	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	4874000000	USD
CY2012	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	4246000000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	14428000000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	13310000000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	13121000000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-130000000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-118000000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-251000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-102000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-48000000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-232000000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	70000000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28000000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	19000000	USD
CY2013	us-gaap	Debt Instrument Sinking Fund Payment DebtInstrumentSinkingFundPayment	7000000	USD
CY2012Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-45000000	USD
CY2013Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-9000000	USD
CY2012Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	2204000000	USD
CY2013Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	2201000000	USD
CY2013Q4	us-gaap	Deferred Compensation Arrangement With Individual Shares Authorized For Issuance DeferredCompensationArrangementWithIndividualSharesAuthorizedForIssuance	1700000	shares
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	580000000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	305000000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	785000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	251000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	658000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	809000000	USD
CY2011	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	798000000	USD
CY2013	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	243000000	USD
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	647000000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-54000000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	24000000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	78000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1100000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-6602000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-6297000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	319000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	366000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	6968000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	6616000000	USD
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CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	-1000000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	26000000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	1000000	USD
CY2011	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	507000000	USD
CY2013	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	-256000000	USD
CY2012	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	609000000	USD
CY2012Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2013Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	609000000	USD
CY2013Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2012Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2013Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2012Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	0	USD
CY2013Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease	-256000000	USD
CY2013	us-gaap	Defined Benefit Plan Target Plan Asset Allocations DefinedBenefitPlanTargetPlanAssetAllocations	1.00
CY2012	us-gaap	Defined Benefit Plan Target Plan Asset Allocations DefinedBenefitPlanTargetPlanAssetAllocations	1.00
CY2011	us-gaap	Depreciation Depreciation	1062000000	USD
CY2012	us-gaap	Depreciation Depreciation	1119000000	USD
CY2013	us-gaap	Depreciation Depreciation	1202000000	USD
CY2012Q4	us-gaap	Depreciation Depreciation	285000000	USD
CY2013Q1	us-gaap	Depreciation Depreciation	293000000	USD
CY2012Q2	us-gaap	Depreciation Depreciation	284000000	USD
CY2013Q3	us-gaap	Depreciation Depreciation	316000000	USD
CY2013Q2	us-gaap	Depreciation Depreciation	300000000	USD
CY2013Q4	us-gaap	Depreciation Depreciation	293000000	USD
CY2012Q3	us-gaap	Depreciation Depreciation	272000000	USD
CY2012Q1	us-gaap	Depreciation Depreciation	278000000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1391000000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1051000000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1741000000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	296000000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	239000000	USD
CY2013Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	166000000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	160000000	USD
CY2012Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	5000000	USD
CY2013Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	9000000	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	13000000	USD
CY2013Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	12000000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	239000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	296000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	141000000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	120000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	598000000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	347000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	435000000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	225000000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	598000000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	347000000	USD
CY2013Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	111000000	USD
CY2012Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	126000000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	26000000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	24000000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	21000000	USD
CY2013	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	9000000	USD
CY2011	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	8000000	USD
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	8000000	USD
CY2013Q4	us-gaap	Disposal Group Including Discontinued Operation Goodwill DisposalGroupIncludingDiscontinuedOperationGoodwill	29000000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	33000000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	30000000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	42000000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.22
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.85
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.02
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.39
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.39
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.01
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
CY2013	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	9479000000	USD
CY2012	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	9800000000	USD
CY2011	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	10573000000	USD
CY2012Q2	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3746000000	USD
CY2012Q1	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3982000000	USD
CY2012Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	4052000000	USD
CY2013Q4	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3647000000	USD
CY2013Q2	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3511000000	USD
CY2013Q3	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	4036000000	USD
CY2012Q4	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3493000000	USD
CY2013Q1	us-gaap	Electric Utility Revenue ElectricUtilityRevenue	3723000000	USD
CY2012	us-gaap	Electric Worldwide Unregulated Revenue ElectricWorldwideUnregulatedRevenue	5473000000	USD
CY2011	us-gaap	Electric Worldwide Unregulated Revenue ElectricWorldwideUnregulatedRevenue	5532000000	USD
CY2013	us-gaap	Electric Worldwide Unregulated Revenue ElectricWorldwideUnregulatedRevenue	5438000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	29000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	21000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	20000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	11000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	23000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	22000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	14000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	13000000	USD
CY2011	us-gaap	Excise Taxes Collected ExciseTaxesCollected	511000000	USD
CY2012	us-gaap	Excise Taxes Collected ExciseTaxesCollected	484000000	USD
CY2013	us-gaap	Excise Taxes Collected ExciseTaxesCollected	458000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	429000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	185000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	80000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	51000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	69000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	75000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	75000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1017000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	588000000	USD
CY2011	us-gaap	Fuel Costs FuelCosts	2317000000	USD
CY2013	us-gaap	Fuel Costs FuelCosts	2496000000	USD
CY2012	us-gaap	Fuel Costs FuelCosts	2471000000	USD
CY2013	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	56000000	USD
CY2012	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	71000000	USD
CY2011	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	59000000	USD
CY2013	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	21000000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	545000000	USD
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	17000000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-132000000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	6418000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	6447000000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	6441000000	USD
CY2013	us-gaap	Goodwill Other Changes GoodwillOtherChanges	0	USD
CY2013	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-29000000	USD
CY2013Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	4300000000	USD
CY2013Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	923000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	33000000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	54000000	USD
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	16000000	USD
CY2011	us-gaap	Impairment Of Investments ImpairmentOfInvestments	19000000	USD
CY2013	us-gaap	Impairment Of Investments ImpairmentOfInvestments	90000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	754000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	375000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	872000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1300000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	570000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1422000000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-230000000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	306000000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	286000000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-258000000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	522000000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	307000000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	208000000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	729000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	375000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	856000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	755000000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	184000000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	209000000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	192000000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	422000000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	142000000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-168000000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-153000000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	302000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.19
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.90
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.81
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.36
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.34
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.40
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.50
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.46
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.72
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.44
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.01
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.18
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.80
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.90
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.34
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.50
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.36
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.46
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.72
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.00
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.44
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.40
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	16000000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	13000000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	17000000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4000000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3000000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4000000	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4000000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5000000	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	4000000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	9000000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.04
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.04
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	545000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	566000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	195000000	USD
CY2012Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	220000000	USD
CY2013Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66000000	USD
CY2013Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	114000000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123000000	USD
CY2012Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-105000000	USD
CY2013Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-62000000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	307000000	USD
CY2013Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	77000000	USD
CY2013	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	9000000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-19000000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	60000000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	-36000000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy	-32000000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-16000000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	503000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	199000000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	455000000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	3000000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	0	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1000000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2011	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-9000000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	8000000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	28000000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	11000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	8000000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	11000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-2000000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-11000000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	10000000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	69000000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	10000000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-20000000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-358000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	36000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-6000000	USD
CY2011	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-147000000	USD
CY2012	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	13000000	USD
CY2013	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	114000000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	60000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	100000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-25000000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-2000000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	83000000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	85000000	USD
CY2011	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	79000000	USD
CY2013	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	42000000	USD
CY2012	us-gaap	Increase Decrease In Deposits Outstanding IncreaseDecreaseInDepositsOutstanding	-16000000	USD
CY2012	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-55000000	USD
CY2013	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	19000000	USD
CY2011	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	69000000	USD
CY2013	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-10000000	USD
CY2011	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-12000000	USD
CY2012	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-12000000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	50000000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-96000000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-14000000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	126000000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-101000000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	12000000	USD
CY2013	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	476000000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2000000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000000	shares
CY2013	us-gaap	Interest And Debt Expense InterestAndDebtExpense	1016000000	USD
CY2012	us-gaap	Interest And Debt Expense InterestAndDebtExpense	1001000000	USD
CY2011	us-gaap	Interest And Debt Expense InterestAndDebtExpense	1008000000	USD
CY2013	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-75000000	USD
CY2011	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-70000000	USD
CY2012	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-72000000	USD
CY2011	us-gaap	Interest Expense InterestExpense	1008000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	1016000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	1001000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	969000000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	962000000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	935000000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	861000000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	752000000	USD
CY2011	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	114000000	USD
CY2013	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	36000000	USD
CY2012	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	77000000	USD
CY2009Q1	us-gaap	Jointly Owned Utility Plant Proportionate Ownership Share JointlyOwnedUtilityPlantProportionateOwnershipShare	0.1667
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	224	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	319	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	291	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	50494000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	50424000000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7605000000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7637000000	USD
CY2013Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	14261000000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	14617000000	USD
CY2014Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	6000000000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	15179000000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	15831000000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1415000000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1999000000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1999000000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1415000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1376000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1453000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1641000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1041000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1264000000	USD
CY2012Q4	us-gaap	Long Term Investments LongTermInvestments	3194000000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	3104000000	USD
CY2013Q4	us-gaap	Longterm Pollution Control Bond Current LongtermPollutionControlBondCurrent	809000000	USD
CY2012Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	493000000	USD
CY2013Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	472000000	USD
CY2013Q4	us-gaap	Longterm Transition Bond Current And Noncurrent LongtermTransitionBondCurrentAndNoncurrent	207000000	USD
CY2012Q4	us-gaap	Longterm Transition Bond Current And Noncurrent LongtermTransitionBondCurrentAndNoncurrent	243000000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	9000000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	3000000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	7000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-817000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	46000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-30000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	807000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	477000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-2924000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-956000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-3157000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-3093000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	2320000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	2662000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	3063000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	392000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	770000000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	885000000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	-164000000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	187000000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	196000000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	425000000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	142000000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-148000000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	306000000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	218000000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	200000000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-255000000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1037000000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-852000000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	1677000000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	1607000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	2152000000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	740000000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	648000000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	46000000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	512000000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	549000000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	401000000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	902000000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-39000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	2422000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	202000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	126000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	125000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	205000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1564000000	USD
CY2013Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	9800000000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	241000000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	208000000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1719000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1674000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	19000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-10000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-6000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-120000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-48000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-167000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	3000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	23000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	1000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-41000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-101000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	115000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	160000000	USD
CY2012Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1163000000	USD
CY2012Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	816000000	USD
CY2013Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	948000000	USD
CY2012Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	920000000	USD
CY2013Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	886000000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	621000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	90000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	64000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	63000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	76000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-66000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-79000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-49000000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	8000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1000000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	7000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-2000000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3949000000	USD
CY2013	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3593000000	USD
CY2012	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3760000000	USD
CY2013Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	882000000	USD
CY2012Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	861000000	USD
CY2013Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	877000000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1038000000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1778000000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1924000000	USD
CY2013Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	870000000	USD
CY2012Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	936000000	USD
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-12000000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	98000000	USD
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-79000000	USD
CY2013Q4	us-gaap	Other Receivables OtherReceivables	198000000	USD
CY2012Q4	us-gaap	Other Receivables OtherReceivables	315000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	90000000	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	19000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	16000000	USD
CY2011	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	149000000	USD
CY2012	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	286000000	USD
CY2013	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	250000000	USD
CY2011	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	-60000000	USD
CY2012	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	-102000000	USD
CY2013	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	23000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Noncurrent Storm Damage DeferredTaxAssetsLiabilitiesNetNoncurrentStormDamage	-192000000	USD
CY2013	fe	Deferred Tax Liabilities Decreases Resultingfrom Changesin Assessmentof Business Operations DeferredTaxLiabilitiesDecreasesResultingfromChangesinAssessmentofBusinessOperations	22000000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-127000000	USD
CY2011	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-151000000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2689000000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	3080000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	43000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-9000000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-48000000	USD
CY2013	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	146000000	USD
CY2011	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	114000000	USD
CY2012	us-gaap	Payments For Removal Costs PaymentsForRemovalCosts	229000000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	920000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	920000000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	881000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2096000000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	4309000000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3020000000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2678000000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2129000000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2638000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-168000000	USD
CY2011	us-gaap	Pension Contributions PensionContributions	372000000	USD
CY2012	us-gaap	Pension Contributions PensionContributions	600000000	USD
CY2013	us-gaap	Pension Contributions PensionContributions	0	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	100
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Prepaid Taxes PrepaidTaxes	226000000	USD
CY2012Q4	us-gaap	Prepaid Taxes PrepaidTaxes	119000000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment PriorPeriodReclassificationAdjustment	88000000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;">Certain prior year amounts have been reclassified to conform to the current year presentation. These reclassifications include, but are not limited to, the classification of discontinued operations associated with our sale of hydro assets discussed in additional detail in Note 20, Discontinued Operations and Assets Held for Sale. Additionally, amounts collected in rates above actual charges related to asset removal have been reclassified as a regulatory liability which resulted in an increase to total assets and noncurrent liabilities of approximately </font><font style="font-family:Arial;font-size:9pt;">$88 million</font><font style="font-family:Arial;font-size:9pt;">.</font></div></div>
CY2012Q1	us-gaap	Profit Loss ProfitLoss	306000000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	-164000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3745000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	750000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	604000000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-38000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-52000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-73000000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	2047000000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	2980000000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	4207000000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	17000000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	4000000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	840000000	USD
CY2013	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	1435000000	USD
CY2012	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	1969000000	USD
CY2011	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2011	us-gaap	Profit Loss ProfitLoss	869000000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	392000000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	771000000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	218000000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	142000000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	188000000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	196000000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	425000000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	-148000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	44228000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	43210000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	33036000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	33252000000	USD
CY2012Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	480000000	USD
CY2013Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	477000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	940000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3600000000	USD
CY2011	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.024
CY2012	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.025
CY2013	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.026
CY2013Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1854000000	USD
CY2012Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2330000000	USD
CY2013Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	440000000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1909000000	USD
CY2012	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	0	USD
CY2011	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	700000000	USD
CY2013	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	0	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2590000000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2888000000	USD
CY2013	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	14917000000	USD
CY2012	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	15271000000	USD
CY2011	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	16038000000	USD
CY2012	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	2000000	USD
CY2011	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	67000000	USD
CY2013	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2013Q4	us-gaap	Sale Leaseback Transaction Deferred Gain Net SaleLeasebackTransactionDeferredGainNet	858000000	USD
CY2012Q4	us-gaap	Sale Leaseback Transaction Deferred Gain Net SaleLeasebackTransactionDeferredGainNet	892000000	USD
CY2013	us-gaap	Sales Revenue Net SalesRevenueNet	14917000000	USD
CY2011	us-gaap	Sales Revenue Net SalesRevenueNet	16105000000	USD
CY2012	us-gaap	Sales Revenue Net SalesRevenueNet	15273000000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	2163000000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	1804000000	USD
CY2012	us-gaap	Severance Costs SeveranceCosts	14000000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	29000000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3000000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1997969	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2348469	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	6000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	4735	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2359126	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2910269	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	42.59
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	40.33
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	30.37
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	71.21
CY2013Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	42.59
CY2013	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P3Y7M6D
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	3404000000	USD
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1969000000	USD
CY2012Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0197
CY2013Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0180
CY2011	us-gaap	Stock Issued1 StockIssued1	4354000000	USD
CY2013	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2012	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	546408	shares
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	12692000000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	13084000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13093000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12695000000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	978000000	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	984000000	USD
CY2011	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	977000000	USD
CY2011	us-gaap	Unrealized Gain Loss On Commodity Contracts UnrealizedGainLossOnCommodityContracts	27000000	USD
CY2013	us-gaap	Unrealized Gain Loss On Commodity Contracts UnrealizedGainLossOnCommodityContracts	-4000000	USD
CY2012	us-gaap	Unrealized Gain Loss On Commodity Contracts UnrealizedGainLossOnCommodityContracts	95000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	48000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	117000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	45000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	43000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	7000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	35000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	37000000	USD
CY2013Q4	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	322000000	USD
CY2012Q3	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	38000000	USD
CY2012Q2	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2013Q2	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	473000000	USD
CY2013Q3	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2013Q1	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	10000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	10000000	USD
CY2013Q4	us-gaap	Unsecured Debt UnsecuredDebt	12035000000	USD
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	12104000000	USD
CY2013	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:9pt;"><font style="font-family:Arial;font-size:9pt;">FirstEnergy follows GAAP and complies with the related regulations, orders, policies and practices prescribed by the SEC, FERC, and, as applicable, the PUCO, the PPUC, the MDPSC, the NYPSC, the WVPSC, the VSCC and the NJBPU. The preparation of financial statements in conformity with GAAP requires management to make periodic estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and disclosure of contingent assets and liabilities. Actual results could differ from these estimates. The reported results of operations are not indicative of results of operations for any future period. FE and its subsidiaries have evaluated events and transactions for potential recognition or disclosure through the date the financial statements were issued.</font></div></div>
CY2011	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	413000000	USD
CY2013	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	795000000	USD
CY2012	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2012Q1	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2012Q4	us-gaap	Utilities Operating Expense Impairments UtilitiesOperatingExpenseImpairments	0	USD
CY2011	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	977000000	USD
CY2013	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	978000000	USD
CY2012	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	984000000	USD
CY2011	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-27000000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	419000000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	401000000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	419000000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	418000000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	399000000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	418000000	shares
CY2011Q1	fe	Acquisition Equity Interests Issued Or Issuable Price Per Share AcquisitionEquityInterestsIssuedOrIssuablePricePerShare	38.16
CY2013Q4	fe	Adverse Percentage Change In Quoted Market Prices Derivative Instruments AdversePercentageChangeInQuotedMarketPricesDerivativeInstruments	-0.10
CY2013Q4	fe	Adverse Power Contract Liability AdversePowerContractLiability	290000000	USD
CY2012Q4	fe	Adverse Power Contract Liability AdversePowerContractLiability	506000000	USD
CY2013	fe	Deferred Tax Liabilities Decreases Resultingfrom Changesto State Apportionment Factors DeferredTaxLiabilitiesDecreasesResultingfromChangestoStateApportionmentFactors	9000000	USD
CY2012	fe	Book Income Before Provision For Income Taxes BookIncomeBeforeProvisionForIncomeTaxes	1299000000	USD
CY2013	fe	Book Income Before Provision For Income Taxes BookIncomeBeforeProvisionForIncomeTaxes	570000000	USD
CY2011	fe	Book Income Before Provision For Income Taxes BookIncomeBeforeProvisionForIncomeTaxes	1438000000	USD
CY2011Q1	fe	Business Acquisition Equity Interest Issued Number Of Shares Issued BusinessAcquisitionEquityInterestIssuedNumberOfSharesIssued	113000000	shares
CY2011Q1	fe	Business Acquisition Number Of Acquiree Common Stock Exchanged BusinessAcquisitionNumberOfAcquireeCommonStockExchanged	170000000	shares
CY2012Q4	fe	Cash Receivables Payables Deferred Taxes Accrued Income Balance Excluded From Available For Sale Securities CashReceivablesPayablesDeferredTaxesAccruedIncomeBalanceExcludedFromAvailableForSaleSecurities	326000000	USD
CY2013Q4	fe	Cash Receivables Payables Deferred Taxes Accrued Income Balance Excluded From Available For Sale Securities CashReceivablesPayablesDeferredTaxesAccruedIncomeBalanceExcludedFromAvailableForSaleSecurities	204000000	USD
CY2013Q2	fe	Commitment Proposed Regulation Number Of Preferred Treatment Options CommitmentProposedRegulationNumberOfPreferredTreatmentOptions	4	options
CY2013Q2	fe	Commitment Proposed Regulation Number Of Treatment Options CommitmentProposedRegulationNumberOfTreatmentOptions	8	options
CY2013	fe	Commitment Proposed Regulation Waste Water Discharge Permit Renewal Cycle CommitmentProposedRegulationWasteWaterDischargePermitRenewalCycle	P5Y
CY2013	fe	Coverage Of Decontamination Costs As Per Property Damage Insurance CoverageOfDecontaminationCostsAsPerPropertyDamageInsurance	2750000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Regulatory Transition Charge DeferredTaxAssetsLiabilitiesNetNonCurrentRegulatoryTransitionCharge	26000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Regulatory Transition Charge DeferredTaxAssetsLiabilitiesNetNonCurrentRegulatoryTransitionCharge	-79000000	USD
CY2013Q1	fe	Debt Instrument Numberof Seriesof Notes DebtInstrumentNumberofSeriesofNotes	2	series
CY2013Q4	fe	Debt Instrument Unamortized Merger Fair Value Adjustments DebtInstrumentUnamortizedMergerFairValueAdjustments	44000000	USD
CY2012Q4	fe	Debt Instrument Unamortized Merger Fair Value Adjustments DebtInstrumentUnamortizedMergerFairValueAdjustments	103000000	USD
CY2013	fe	Decrease Net Income Due To Adverse Change In Commodity Prices DecreaseNetIncomeDueToAdverseChangeInCommodityPrices	27000000	USD
CY2013Q4	fe	Deferred Compensation Arrangement With Individual Number Of Shares Available For Grant DeferredCompensationArrangementWithIndividualNumberOfSharesAvailableForGrant	845000	shares
CY2012	fe	Deferred Purchased Power Costs And Other DeferredPurchasedPowerCostsAndOther	-238000000	USD
CY2013	fe	Deferred Purchased Power Costs And Other DeferredPurchasedPowerCostsAndOther	-76000000	USD
CY2011	fe	Deferred Purchased Power Costs And Other DeferredPurchasedPowerCostsAndOther	-278000000	USD
CY2013	fe	Deferred Rents And Lease Market Valuation Liability DeferredRentsAndLeaseMarketValuationLiability	54000000	USD
CY2011	fe	Deferred Rents And Lease Market Valuation Liability DeferredRentsAndLeaseMarketValuationLiability	49000000	USD
CY2012	fe	Deferred Rents And Lease Market Valuation Liability DeferredRentsAndLeaseMarketValuationLiability	104000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current All Other DeferredTaxAssetsLiabilitiesNetNonCurrentAllOther	-231000000	USD
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CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Deferred Sale And Leaseback Gain DeferredTaxAssetsLiabilitiesNetNonCurrentDeferredSaleAndLeasebackGain	411000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Lease Market Valuation Liability DeferredTaxAssetsLiabilitiesNetNonCurrentLeaseMarketValuationLiability	81000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Lease Market Valuation Liability DeferredTaxAssetsLiabilitiesNetNonCurrentLeaseMarketValuationLiability	59000000	USD
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CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Loss Carry Forwards And Tax Credits DeferredTaxAssetsLiabilitiesNetNonCurrentLossCarryForwardsAndTaxCredits	1599000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Loss Carry Forwards And Tax Credits DeferredTaxAssetsLiabilitiesNetNonCurrentLossCarryForwardsAndTaxCredits	1199000000	USD
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CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Nuclear Decommissioning Activities DeferredTaxAssetsLiabilitiesNetNonCurrentNuclearDecommissioningActivities	-127000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Nuclear Decommissioning Activities DeferredTaxAssetsLiabilitiesNetNonCurrentNuclearDecommissioningActivities	-44000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Other Regulatory Assets Rcp DeferredTaxAssetsLiabilitiesNetNonCurrentOtherRegulatoryAssetsRcp	-161000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Other Regulatory Assets Rcp DeferredTaxAssetsLiabilitiesNetNonCurrentOtherRegulatoryAssetsRcp	-69000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Oyster Creek Securitization DeferredTaxAssetsLiabilitiesNetNonCurrentOysterCreekSecuritization	-57000000	USD
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CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Pension And Other Post Retirement Obligations DeferredTaxAssetsLiabilitiesNetNonCurrentPensionAndOtherPostRetirementObligations	938000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Pension And Other Post Retirement Obligations DeferredTaxAssetsLiabilitiesNetNonCurrentPensionAndOtherPostRetirementObligations	1102000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Property Basis Differences DeferredTaxAssetsLiabilitiesNetNonCurrentPropertyBasisDifferences	-8078000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Property Basis Differences DeferredTaxAssetsLiabilitiesNetNonCurrentPropertyBasisDifferences	-7868000000	USD
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CY2013Q4	fe	Deferred Tax Assets Liabilities Net Noncurrent Deferred Miso Pjm Transmission Costs DeferredTaxAssetsLiabilitiesNetNoncurrentDeferredMisoPjmTransmissionCosts	-27000000	USD
CY2013	fe	Losses In Excess Of Private Insurance Contributed For Each Nuclear Unit License Per Unit LossesInExcessOfPrivateInsuranceContributedForEachNuclearUnitLicensePerUnit	19000000	USD
CY2013	fe	Merger Related Expenses MergerRelatedExpenses	1000000	USD
	fe	Merger Related Expenses MergerRelatedExpenses	58000000	USD
CY2013Q4	fe	Deferred Tax Assets Liabilities Net Non Current Unamortized Investment Tax Credits DeferredTaxAssetsLiabilitiesNetNonCurrentUnamortizedInvestmentTaxCredits	62000000	USD
CY2012Q4	fe	Deferred Tax Assets Liabilities Net Non Current Unamortized Investment Tax Credits DeferredTaxAssetsLiabilitiesNetNonCurrentUnamortizedInvestmentTaxCredits	67000000	USD
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CY2012Q4	fe	Derivative Liabilities Fair Value Amounts Offset Against Derivative Assets DerivativeLiabilitiesFairValueAmountsOffsetAgainstDerivativeAssets	150000000	USD
CY2013Q4	fe	Derivative Liabilities Fair Value Amounts Offset Against Derivative Assets DerivativeLiabilitiesFairValueAmountsOffsetAgainstDerivativeAssets	110000000	USD
CY2013	fe	Direct Allocation Of Ftrs Cost DirectAllocationOfFtrsCost	0	USD
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CY2013	fe	Expected Number Of Nuclear Power Plant Licensed To Operate ExpectedNumberOfNuclearPowerPlantLicensedToOperate	104	NuclearPowerPlants
CY2012	fe	Gain Loss On Partial Sale Of Joint Venture Interest GainLossOnPartialSaleOfJointVentureInterest	0	USD
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CY2013	fe	Gain Loss On Partial Sale Of Joint Venture Interest GainLossOnPartialSaleOfJointVentureInterest	0	USD
CY2013	fe	Impairment Of Investments Held ImpairmentOfInvestmentsHeld	90000000	USD
CY2012	fe	Impairment Of Investments Held ImpairmentOfInvestmentsHeld	27000000	USD
CY2011	fe	Impairment Of Investments Held ImpairmentOfInvestmentsHeld	19000000	USD
CY2013	fe	Income Tax Reconciliation Change In Deferred State Apportionment Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredStateApportionmentTaxAssetsValuationAllowance	-7000000	USD
CY2012	fe	Income Tax Reconciliation Change In Deferred State Apportionment Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredStateApportionmentTaxAssetsValuationAllowance	-50000000	USD
CY2011	fe	Income Tax Reconciliation State Unitary Taxes IncomeTaxReconciliationStateUnitaryTaxes	33000000	USD
CY2013Q4	fe	Insurance Coverage For Replacement Power Costs InsuranceCoverageForReplacementPowerCosts	1060000000	USD
CY2013	fe	Investment Income From Trusts InvestmentIncomeFromTrusts	101000000	USD
CY2012	fe	Investment Income From Trusts InvestmentIncomeFromTrusts	70000000	USD
CY2011	fe	Investment Income From Trusts InvestmentIncomeFromTrusts	82000000	USD
CY2013	fe	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	-8000000	USD
CY2012	fe	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	-11000000	USD
CY2011	fe	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	-11000000	USD
CY2012Q4	fe	Investments Excludes Receivables Payables Deferred Taxes And Accrued Income InvestmentsExcludesReceivablesPayablesDeferredTaxesAndAccruedIncome	110000000	USD
CY2013Q4	fe	Investments Excludes Receivables Payables Deferred Taxes And Accrued Income InvestmentsExcludesReceivablesPayablesDeferredTaxesAndAccruedIncome	10000000	USD
CY2012Q4	fe	Investments Not Required To Be Disclosed InvestmentsNotRequiredToBeDisclosed	644000000	USD
CY2013Q4	fe	Investments Not Required To Be Disclosed InvestmentsNotRequiredToBeDisclosed	636000000	USD
CY2013Q4	fe	Line Of Credit Facility Pcrb Related Amount Outstanding LineOfCreditFacilityPcrbRelatedAmountOutstanding	818000000	USD
CY2012	fe	Merger Related Expenses MergerRelatedExpenses	1000000	USD
CY2013	fe	Minimum Equity To Total Capitalization Ratio To Be Maintained For Payment Of Capital Dividend MinimumEquityToTotalCapitalizationRatioToBeMaintainedForPaymentOfCapitalDividend	0.35
CY2013	fe	Paymentsof Debt Redemption Makewhole Premiums PaymentsofDebtRedemptionMakewholePremiums	187000000	USD
CY2012	fe	Paymentsof Debt Redemption Makewhole Premiums PaymentsofDebtRedemptionMakewholePremiums	0	USD
CY2012	fe	Paymentsof Debt Redemption Tender Premiums PaymentsofDebtRedemptionTenderPremiums	0	USD
CY2011	fe	Paymentsof Debt Redemption Tender Premiums PaymentsofDebtRedemptionTenderPremiums	0	USD
CY2013	fe	Losses In Excess Of Private Insurance Contributed For Each Nuclear Unit License LossesInExcessOfPrivateInsuranceContributedForEachNuclearUnitLicense	127000000	USD
CY2013Q4	fe	Net Plant Excluding Construction Work In Progress NetPlantExcludingConstructionWorkInProgress	30948000000	USD
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CY2013	fe	Nuclear Incidence Liability Per Incident Of Parent And Subsidiary Companys Based On Their Present Nuclear Ownership And Leasehold Interests NuclearIncidenceLiabilityPerIncidentOfParentAndSubsidiaryCompanysBasedOnTheirPresentNuclearOwnershipAndLeaseholdInterests	509000000	USD
CY2013	fe	Nuclear Incident Liability Not More Than In Any One Year Per Incident Of Parent And Subsidiary Companies Based On Their Present Nuclear Ownership And Leasehold Interests NuclearIncidentLiabilityNotMoreThanInAnyOneYearPerIncidentOfParentAndSubsidiaryCompaniesBasedOnTheirPresentNuclearOwnershipAndLeaseholdInterests	76000000	USD
CY2013	fe	Nuclear Insurance Policy Aggregate Indemnity NuclearInsurancePolicyAggregateIndemnity	2000000000	USD
CY2013	fe	Nuclear Insurance Policy Environmental Plan Submission Period NuclearInsurancePolicyEnvironmentalPlanSubmissionPeriod	P30D
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CY2013	fe	Paymentsof Debt Redemption Tender Premiums PaymentsofDebtRedemptionTenderPremiums	110000000	USD
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CY2011	fe	Paymentsof Debt Redemption Makewhole Premiums PaymentsofDebtRedemptionMakewholePremiums	0	USD
CY2013	fe	Number Of Stock Based Compensation Programs NumberOfStockBasedCompensationPrograms	4	Forms
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CY2013	fe	Number Of Subsidiaries That Issued Environmental Control Bonds NumberOfSubsidiariesThatIssuedEnvironmentalControlBonds	2
CY2012	fe	Number Of Unregulated Subsidiaries Involved In Tax Judgment NumberOfUnregulatedSubsidiariesInvolvedInTaxJudgment	2	subsidiary
CY2013	fe	Number Of Variable Interest Contracts NumberOfVariableInterestContracts	2	entities
CY2013Q4	fe	Operating Lease Commitments Net Present Value OperatingLeaseCommitmentsNetPresentValue	1100000000	USD
CY1987	fe	Operating Lease Term Of Other Subsidiaries OperatingLeaseTermOfOtherSubsidiaries	P30Y
CY2013	fe	Period In Which Lses May Request Direct Allocation Of Ftrs PeriodInWhichLsesMayRequestDirectAllocationOfFtrs	P2Y
CY2013	fe	Portion Of Insurance Coverage By Industry Retrospective Rating Plan PortionOfInsuranceCoverageByIndustryRetrospectiveRatingPlan	13200000000	USD
CY2013	fe	Portion Of Insurance Coverage Of Private Insurer Included In Single Nuclear Incident Liability PortionOfInsuranceCoverageOfPrivateInsurerIncludedInSingleNuclearIncidentLiability	375000000	USD
CY2012Q4	fe	Preference Stock Shares Outstanding PreferenceStockSharesOutstanding	0	shares
CY2013Q4	fe	Preference Stock Shares Outstanding PreferenceStockSharesOutstanding	0	shares
CY2013Q4	fe	Pretax Net Operating Loss Carryforwards Expected To Utilized PretaxNetOperatingLossCarryforwardsExpectedToUtilized	6300000000	USD
CY2013	fe	Principal Default Amount Specified In Debt Covenants PrincipalDefaultAmountSpecifiedInDebtCovenants	100000000	USD
CY2012	fe	Proceeds From Interest Rate Derivative Termination ProceedsFromInterestRateDerivativeTermination	6000000	USD
CY2013Q4	fe	Property Plant And Equipment Excluding Construction In Progress PropertyPlantAndEquipmentExcludingConstructionInProgress	44228000000	USD
CY2012Q4	fe	Property Plant And Equipment Excluding Construction In Progress PropertyPlantAndEquipmentExcludingConstructionInProgress	43210000000	USD
CY2013Q2	fe	Proposed Green House Gas Performance Standards Minimum Output Size To Be Effected ProposedGreenHouseGasPerformanceStandardsMinimumOutputSizeToBeEffected	25	MW
CY2010Q4	fe	Proposed Sulfate Impairment Designation Length ProposedSulfateImpairmentDesignationLength	68	mi
CY2013	fe	Public Utilities Liability Asses With Respect To Single Nuclear Incident Based On Act PublicUtilitiesLiabilityAssesWithRespectToSingleNuclearIncidentBasedOnAct	13600000000	USD
CY2013Q1	fe	Purchase Of Lessor Equity Interests In Sale And Leaseback Value PurchaseOfLessorEquityInterestsInSaleAndLeasebackValue	221000000	USD
CY2013	fe	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	153000000	USD
CY2012	fe	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	161000000	USD
CY2011	fe	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	117000000	USD
CY2012	fe	Reduction In Effective Tax Rate ReductionInEffectiveTaxRate	4000000	USD
CY2011	fe	Reduction In Effective Tax Rate ReductionInEffectiveTaxRate	7000000	USD
CY2013	fe	Regional Enforcement Entities RegionalEnforcementEntities	8	entities
CY2013	fe	Removal Costs RemovalCosts	20000000	USD
CY2012	fe	Removal Costs RemovalCosts	203000000	USD
CY2011	fe	Removal Costs RemovalCosts	55000000	USD
CY2013	fe	Retrospective Assessments Liabilities RetrospectiveAssessmentsLiabilities	79000000	USD
CY1987	fe	Subsidiary One Operating Lease Term Of Subsidiary One SubsidiaryOneOperatingLeaseTermOfSubsidiaryOne	P29Y
CY2011	fe	Storm Cost Deferral StormCostDeferral	145000000	USD
CY2013	fe	Storm Cost Deferral StormCostDeferral	0	USD
CY2012	fe	Storm Cost Deferral StormCostDeferral	375000000	USD
CY2012Q4	fe	Unamortized Gains Included In Long Term Debt Associated With Prior Fixed For Floating Interest Rate Swap Agreements UnamortizedGainsIncludedInLongTermDebtAssociatedWithPriorFixedForFloatingInterestRateSwapAgreements	79000000	USD
CY2013Q4	fe	Unamortized Gains Included In Long Term Debt Associated With Prior Fixed For Floating Interest Rate Swap Agreements UnamortizedGainsIncludedInLongTermDebtAssociatedWithPriorFixedForFloatingInterestRateSwapAgreements	44000000	USD
CY2012Q4	fe	Unamortized Gains Or Losses Associated With Designated Cash Flow Hedges UnamortizedGainsOrLossesAssociatedWithDesignatedCashFlowHedges	10000000	USD
CY2013Q4	fe	Unamortized Gains Or Losses Associated With Designated Cash Flow Hedges UnamortizedGainsOrLossesAssociatedWithDesignatedCashFlowHedges	2000000	USD
CY2013Q4	fe	Unamortized Losses Associated With Prior Interest Rate Hedges UnamortizedLossesAssociatedWithPriorInterestRateHedges	59000000	USD
CY2012Q4	fe	Unamortized Losses Associated With Prior Interest Rate Hedges UnamortizedLossesAssociatedWithPriorInterestRateHedges	70000000	USD
CY2013	fe	Uncertain Tax Position Net Interest Expense Income UncertainTaxPositionNetInterestExpenseIncome	1000000	USD
CY2011	fe	Uncertain Tax Position Net Interest Expense Income UncertainTaxPositionNetInterestExpenseIncome	-5000000	USD
CY2012	fe	Uncertain Tax Position Net Interest Expense Income UncertainTaxPositionNetInterestExpenseIncome	-4000000	USD
CY2012Q4	fe	Uncertain Tax Position Net Interest Payable Receivable UncertainTaxPositionNetInterestPayableReceivable	8000000	USD
CY2013Q4	fe	Uncertain Tax Position Net Interest Payable Receivable UncertainTaxPositionNetInterestPayableReceivable	9000000	USD
CY2012Q4	fe	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities Resulting Reduction To Effective Tax Rate UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthoritiesResultingReductionToEffectiveTaxRate	10000000	USD
CY2013Q4	fe	Unrecognized Tax Benefits Portion Expected To Be Resolved In Next Fiscal Year UnrecognizedTaxBenefitsPortionExpectedToBeResolvedInNextFiscalYear	35000000	USD
CY2013	fe	Valuation Allowance Deferred Tax Asset Changein Amount Next Fiscal Quarter ValuationAllowanceDeferredTaxAssetChangeinAmountNextFiscalQuarter	-8000000	USD
CY2013	fe	Variable Interest Entities Percentage Of Equity Interest By Unaffiliated Third Party Included In Ownership Of Entity Three VariableInterestEntitiesPercentageOfEquityInterestByUnaffiliatedThirdPartyIncludedInOwnershipOfEntityThree	0.03
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001031296
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CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	15570961427	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	FIRSTENERGY CORP
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

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$FE
FirstEnergy Corp Stock $fe

2013 Q4 Form 10-K Financial Statement

#000103129614000010 Filed on February 27, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FE FirstEnergy Corp Stock $fe

2013 Q4 Form 10-K Financial Statement

#000103129614000010 Filed on February 27, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FE
FirstEnergy Corp Stock $fe