$AEP
AMERICAN ELECTRIC POWER CO INC

2011 Q4 Form 10-K Financial Statement

#000000490412000013 Filed on February 28, 2012

View on sec.gov

Income Statement

Concept 2011 Q4 2010 Q4 2010 Q3
Revenue $3.444B $3.434B $4.064B
YoY Change 0.29% 4.63% 14.58%
Cost Of Revenue $335.0M $288.0M $247.0M
YoY Change 16.32% 13.83% 0.0%
Gross Profit $3.109B $3.146B $3.817B
YoY Change -1.18% 3.86% 15.67%
Gross Profit Margin 90.27% 91.61% 93.92%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $397.0M $404.0M $424.0M
YoY Change -1.73% 1.76% 0.71%
% of Gross Profit 12.77% 12.84% 11.11%
Operating Expenses $2.717B $2.660B $3.039B
YoY Change 2.14% 4.4% 13.02%
Operating Profit $343.0M $486.0M $1.025B
YoY Change -29.42% 1.04% 19.46%
Interest Expense -$178.0M -$218.0M $251.0M
YoY Change -18.35% 0.0% 1.21%
% of Operating Profit -51.9% -44.86% 24.49%
Other Income/Expense, Net $70.00M $19.00M $18.00M
YoY Change 268.42% 35.71% 50.0%
Pretax Income $235.0M $287.0M $812.0M
YoY Change -18.12% 3.61% 24.92%
Income Tax $32.00M $113.0M $258.0M
% Of Pretax Income 13.62% 39.37% 31.77%
Net Earnings $311.0M $178.0M $556.0M
YoY Change 74.72% -25.52% 25.23%
Net Earnings / Revenue 9.03% 5.18% 13.68%
Basic Earnings Per Share $0.63 $0.37 $1.16
Diluted Earnings Per Share $0.63 $0.37 $1.16
COMMON SHARES
Basic Shares Outstanding 483.4M shares 480.8M shares 479.6M shares
Diluted Shares Outstanding 479.8M shares

Balance Sheet

Concept 2011 Q4 2010 Q4 2010 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $515.0M $710.0M $1.416B
YoY Change -27.46% -16.76% 24.65%
Cash & Equivalents $221.0M $294.0M $1.090B
Short-Term Investments $294.0M $416.0M $326.0M
Other Short-Term Assets $647.0M $145.0M $155.0M
YoY Change 346.21% -31.28% -86.51%
Inventory $1.292B $1.448B $1.409B
Prepaid Expenses
Receivables $1.834B $1.923B $1.816B
Other Receivables $150.0M $526.0M $273.0M
Total Short-Term Assets $4.182B $5.016B $5.421B
YoY Change -16.63% 5.47% 21.03%
LONG-TERM ASSETS
Property, Plant & Equipment $36.97B $35.67B $35.00B
YoY Change 3.64% 3.87% 3.48%
Goodwill $76.00M $76.00M $76.00M
YoY Change 0.0% 0.0%
Intangibles
YoY Change
Long-Term Investments $299.0M $160.0M
YoY Change 86.88%
Other Assets $1.346B $1.079B $910.0M
YoY Change 24.75% 14.06% -89.68%
Total Long-Term Assets $11.07B $9.765B $9.473B
YoY Change 13.36% 5.59% -77.82%
TOTAL ASSETS
Total Short-Term Assets $4.182B $5.016B $5.421B
Total Long-Term Assets $11.07B $9.765B $9.473B
Total Assets $52.22B $50.46B $49.89B
YoY Change 3.5% 4.36% 5.72%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $1.095B $1.061B $884.0M
YoY Change 3.2% -8.38% -11.95%
Accrued Expenses $279.0M $281.0M $255.0M
YoY Change -0.71% -2.09% 9.91%
Deferred Revenue
YoY Change
Short-Term Debt $1.650B $1.346B $1.466B
YoY Change 22.59% 968.25% 316.48%
Long-Term Debt Due $1.433B $1.309B $1.286B
YoY Change 9.47% -24.81% -16.49%
Total Short-Term Liabilities $6.611B $6.518B $6.148B
YoY Change 1.43% 22.36% 23.28%
LONG-TERM LIABILITIES
Long-Term Debt $15.08B $15.50B $16.00B
YoY Change -2.7% -1.62% 1.79%
Other Long-Term Liabilities $974.0M $795.0M $804.0M
YoY Change 22.52% -31.64% -82.68%
Total Long-Term Liabilities $30.95B $30.26B $30.03B
YoY Change 2.29% 1.46% 47.51%
TOTAL LIABILITIES
Total Short-Term Liabilities $6.611B $6.518B $6.148B
Total Long-Term Liabilities $30.95B $30.26B $30.03B
Total Liabilities $37.56B $36.77B $36.18B
YoY Change 2.13% 4.63% 6.19%
SHAREHOLDERS EQUITY
Retained Earnings $5.890B $4.842B $4.887B
YoY Change 21.64% 8.78%
Common Stock $3.274B $3.257B $3.252B
YoY Change 0.52% 0.56%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares 20.34M shares 20.31M shares 20.28M shares
Shareholders Equity $14.66B $13.62B $13.66B
YoY Change
Total Liabilities & Shareholders Equity $52.22B $50.46B $49.89B
YoY Change 3.5% 4.36% 5.72%

Cashflow Statement

Concept 2011 Q4 2010 Q4 2010 Q3
OPERATING ACTIVITIES
Net Income $311.0M $178.0M $556.0M
YoY Change 74.72% -25.52% 25.23%
Depreciation, Depletion And Amortization $397.0M $404.0M $424.0M
YoY Change -1.73% 1.76% 0.71%
Cash From Operating Activities $450.0M $960.0M $1.120B
YoY Change -53.13% 58.94% 10.45%
INVESTING ACTIVITIES
Capital Expenditures -$822.0M -$738.0M -$553.0M
YoY Change 11.38% 7.74% -4.16%
Acquisitions
YoY Change
Other Investing Activities -$101.0M -$210.0M -$30.00M
YoY Change -51.9% 56.72% -28.57%
Cash From Investing Activities -$923.0M -$948.0M -$583.0M
YoY Change -2.64% 15.75% -5.82%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 148.0M -808.0M -285.0M
YoY Change -118.32% 369.77% -329.84%
NET CHANGE
Cash From Operating Activities 450.0M 960.0M 1.120B
Cash From Investing Activities -923.0M -948.0M -583.0M
Cash From Financing Activities 148.0M -808.0M -285.0M
Net Change In Cash -325.0M -796.0M 252.0M
YoY Change -59.17% 105.68% -51.45%
FREE CASH FLOW
Cash From Operating Activities $450.0M $960.0M $1.120B
Capital Expenditures -$822.0M -$738.0M -$553.0M
Free Cash Flow $1.272B $1.698B $1.673B
YoY Change -25.09% 31.73% 5.15%

Facts In Submission

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500000000 USD
CY2011 us-gaap Pension Contributions
PensionContributions
450000000 USD
CY2011 us-gaap Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
51000000 USD
CY2010 us-gaap Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
0 USD
CY2009 us-gaap Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
0 USD
CY2009 us-gaap Payments For Legal Settlements
PaymentsForLegalSettlements
0 USD
CY2010 us-gaap Payments For Legal Settlements
PaymentsForLegalSettlements
0 USD
CY2010 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
0 USD
CY2009 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
0 USD
CY2011 us-gaap Payments For Legal Settlements
PaymentsForLegalSettlements
211000000 USD
CY2011 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
112000000 USD
CY2010 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
89000000 USD
CY2009 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
152000000 USD
CY2009 us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
244000000 USD
CY2010 us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
202000000 USD
CY2011 us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
307000000 USD
CY2011 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
193000000 USD
CY2010 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
179000000 USD
CY2009 us-gaap Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
-470000000 USD
CY2009 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
0 USD
CY2010 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
0 USD
CY2011 us-gaap Payments To Acquire Oil And Gas Property
PaymentsToAcquireOilAndGasProperty
214000000 USD
CY2011 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-37000000 USD
CY2010 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-73000000 USD
CY2009 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
73000000 USD
CY2009 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
-243000000 USD
CY2010 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
62000000 USD
CY2011 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
29000000 USD
CY2011 us-gaap Payments For Nuclear Fuel
PaymentsForNuclearFuel
106000000 USD
CY2010 us-gaap Payments For Nuclear Fuel
PaymentsForNuclearFuel
91000000 USD
CY2009 us-gaap Payments For Nuclear Fuel
PaymentsForNuclearFuel
169000000 USD
CY2011 aep Amortization Of Nuclear Fuel
AmortizationOfNuclearFuel
137000000 USD
CY2010 aep Amortization Of Nuclear Fuel
AmortizationOfNuclearFuel
139000000 USD
CY2009 aep Amortization Of Nuclear Fuel
AmortizationOfNuclearFuel
63000000 USD
CY2011 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
64000000 USD
CY2011Q4 aep Minimum Percentage Of Equity Aep Provides
MinimumPercentageOfEquityAepProvides
0.05 pure
CY2010Q4 us-gaap Secured Debt
SecuredDebt
1800000000 USD
CY2011Q4 us-gaap Secured Debt
SecuredDebt
1700000000 USD
CY2011 aep Percentage Of Vie Management Fee Received
PercentageOfVieManagementFeeReceived
1 pure
CY2011 aep Percentage Of Vie Debt Guaranteed
PercentageOfVieDebtGuaranteed
0.5 pure
CY2011 aep Percentage Of Ownership In Subsidiary
PercentageOfOwnershipInSubsidiary
1 pure
CY2011 aep Aep Regulatory Assets And Liabilities Recognition Criteria
AepRegulatoryAssetsAndLiabilitiesRecognitionCriteria
<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;font-weight:bold;font-style:italic;margin-left:0px;">Accounting for the Effects of Cost-Based Regulation</font></p><p style='margin-top:0pt; margin-bottom:0pt'>&#160;</p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;margin-left:0px;">As the owner of rate-regulated electric public utility companies, our financial statements reflect the actions of regulators that result in the recognition of certain revenues and expenses in different time periods than enterprises that are not rate-regulated. In accordance with accounting guidance for &#8220;Regulated Operations,&#8221; we record regulatory assets (deferred expenses) and regulatory liabilities (future revenue reductions or refunds) to reflect the economic effects of regulation by matching expenses with their recovery through regulated revenues and income with its passage to customers through the reduction of regulated revenues. Due to the passage of legislation requiring restructuring and a transition to customer choice and market-based rates, we discontinued the application of &#8220;Regulated Operations&#8221; accounting treatment for the generation portion of our business in Ohio for OPCo and in Texas for TNC. In 2009, the Texas legislature amended its restructuring legislation for the generation portion of SWEPCo's Texas retail jurisdiction to delay indefinitely restructuring requirements. As a result, SWEPCo reapplied accounting guidance for &#8220;Regulated Operations&#8221; to its </font><font style="font-family:Times New Roman;font-size:11pt;">Texas</font><font style="font-family:Times New Roman;font-size:11pt;"> generation operations. </font></p><p style='margin-top:0pt; margin-bottom:0pt'>&#160;</p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;margin-left:0px;">Accounting guidance for &#8220;Discontinuation of Rate-Regulated Operations&#8221; requires the recognition of an impairment of stranded net regulatory assets and stranded plant costs if they are not recoverable in regulated rates. In addition, an enterprise is required to eliminate from its balance sheet the effects of any actions of regulators that had been recognized as regulatory assets and regulatory liabilities. Such impairments and adjustments are classified as an extraordinary item.</font></p>
CY2011 us-gaap Use Of Estimates
UseOfEstimates
<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;font-weight:bold;font-style:italic;margin-left:0px;">Use of Estimates</font></p><p style='margin-top:0pt; margin-bottom:0pt'>&#160;</p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;margin-left:0px;">The preparation of these financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates include, but are not limited to, inventory valuation, allowance for doubtful accounts, goodwill, intangible and long-lived asset impairment, unbilled electricity revenue, valuation of long-term energy contracts, the effects of regulation, long-lived asset recovery,</font><font style="font-family:Times New Roman;font-size:11pt;"> storm costs,</font><font style="font-family:Times New Roman;font-size:11pt;"> the effects of contingencies and certain assumptions made in accounting for pension and postretirement benefits. The estimates and assumptions used are based upon management's evaluation of the relevant facts and circumstances as of the date of the financial statements. Actual results could ultimately differ from those estimates.</font></p>
CY2009 us-gaap Interest Paid Net
InterestPaidNet
924000000 USD
CY2010 us-gaap Interest Paid Net
InterestPaidNet
958000000 USD
CY2011 us-gaap Interest Paid Net
InterestPaidNet
900000000 USD
CY2009 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-98000000 USD
CY2011Q4 us-gaap Defined Benefit Plan Amounts Recognized In Balance Sheet
DefinedBenefitPlanAmountsRecognizedInBalanceSheet
-530000000 USD
CY2010Q4 us-gaap Defined Benefit Plan Amounts Recognized In Balance Sheet
DefinedBenefitPlanAmountsRecognizedInBalanceSheet
-453000000 USD
CY2011Q4 us-gaap Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
2000000 USD
CY2010Q4 us-gaap Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
4000000 USD
CY2011Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
81000000 USD
CY2010Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
57000000 USD
CY2011 aep Income Before Discontinued Operations And Extraordinary Items
IncomeBeforeDiscontinuedOperationsAndExtraordinaryItems
1568000000 USD
CY2010 aep Income Before Discontinued Operations And Extraordinary Items
IncomeBeforeDiscontinuedOperationsAndExtraordinaryItems
1211000000 USD
CY2009 aep Income Before Discontinued Operations And Extraordinary Items
IncomeBeforeDiscontinuedOperationsAndExtraordinaryItems
1362000000 USD
CY2010 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
136250 shares
CY2009 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
452216 shares
CY2011 us-gaap Related Party Transaction Expenses From Transactions With Related Party
RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
66000000 USD
CY2010 us-gaap Related Party Transaction Expenses From Transactions With Related Party
RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
10000000 USD
CY2009 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
86000000 USD
CY2010 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
225000000 USD
CY2011 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
54000000 USD
CY2009 us-gaap Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
348000000 USD
CY2010 us-gaap Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
267000000 USD
CY2011 us-gaap Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
380000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
226000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
285000000 USD
CY2011Q4 aep Cash Collateral Paid Netted Against Risk Management Liabilities
CashCollateralPaidNettedAgainstRiskManagementLiabilities
133000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
1235000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
631000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
2574000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Interest Included In Payments
CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
173000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments
CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments
458000000 USD
CY2011Q4 aep Volume Of Natural Gas Derivatives Contract
VolumeOfNaturalGasDerivativesContract
100000000 pure
CY2010Q4 aep Volume Of Natural Gas Derivatives Contract
VolumeOfNaturalGasDerivativesContract
94000000 pure
CY2011Q4 aep Volume Of Heating Oil And Gasoline Derivatives Contract
VolumeOfHeatingOilAndGasolineDerivativesContract
6000000 pure
CY2010Q4 aep Volume Of Heating Oil And Gasoline Derivatives Contract
VolumeOfHeatingOilAndGasolineDerivativesContract
6000000 pure
CY2011Q4 us-gaap Notional Amount Of Interest Rate Derivatives
NotionalAmountOfInterestRateDerivatives
226000000 USD
CY2010Q4 us-gaap Notional Amount Of Interest Rate Derivatives
NotionalAmountOfInterestRateDerivatives
171000000 USD
CY2011Q4 aep Notional Amount Of Interest Rate And Foreign Currency Derivatives Contract
NotionalAmountOfInterestRateAndForeignCurrencyDerivativesContract
907000000 USD
CY2010Q4 aep Notional Amount Of Interest Rate And Foreign Currency Derivatives Contract
NotionalAmountOfInterestRateAndForeignCurrencyDerivativesContract
907000000 USD
CY2011Q4 us-gaap Derivative Liabilities
DerivativeLiabilities
345000000 USD
CY2011Q4 us-gaap Derivative Assets Liabilities At Fair Value Net
DerivativeAssetsLiabilitiesAtFairValueNet
251000000 USD
CY2010Q4 us-gaap Derivative Assets
DerivativeAssets
642000000 USD
CY2010Q4 us-gaap Derivative Liabilities
DerivativeLiabilities
270000000 USD
CY2010Q4 us-gaap Derivative Assets Liabilities At Fair Value Net
DerivativeAssetsLiabilitiesAtFairValueNet
372000000 USD
CY2011Q4 us-gaap Derivative Assets
DerivativeAssets
596000000 USD
CY2011 aep Matching Contributions Provided Percentage
MatchingContributionsProvidedPercentage
1 pure
CY2011 aep Second Matching Contributions Provided Percentage
SecondMatchingContributionsProvidedPercentage
0.7 pure
CY2011 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
64000000 USD
CY2010 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
61000000 USD
CY2009 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
74000000 USD
CY2011 aep Eligible Compensation Contribution By Employee Percentage
EligibleCompensationContributionByEmployeePercentage
0.01 pure
CY2011 aep Second Eligible Compensation Contribution By Employee Percentage
SecondEligibleCompensationContributionByEmployeePercentage
0.05 pure
CY2011 us-gaap Segment Reporting Information Revenue
SegmentReportingInformationRevenue
15116000000 USD
CY2011 us-gaap Investment Income Interest
InvestmentIncomeInterest
27000000 USD
CY2010 us-gaap Segment Reporting Information Revenue
SegmentReportingInformationRevenue
14427000000 USD
CY2009 us-gaap Segment Reporting Information Revenue
SegmentReportingInformationRevenue
13489000000 USD
CY2009 us-gaap Investment Income Interest
InvestmentIncomeInterest
11000000 USD
CY2011 us-gaap Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
2902000000 USD
CY2010 us-gaap Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
2500000000 USD
CY2009 us-gaap Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
2896000000 USD
CY2011 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2010 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2009 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2010 us-gaap Investment Income Interest
InvestmentIncomeInterest
21000000 USD
CY2011Q4 us-gaap Equity Method Investments
EquityMethodInvestments
299000000 USD
CY2010Q4 us-gaap Equity Method Investments
EquityMethodInvestments
160000000 USD
CY2009 aep Utility Operations Segment Related Net Purchases Classified In Revenues From Other
UtilityOperationsSegmentRelatedNetPurchasesClassifiedInRevenuesFromOther
5000000 USD
CY2010Q4 aep Cash Collateral Paid Netted Against Risk Management Liabilities
CashCollateralPaidNettedAgainstRiskManagementLiabilities
109000000 USD
CY2011Q4 us-gaap Securities Received As Collateral
SecuritiesReceivedAsCollateral
26000000 USD
CY2010Q4 us-gaap Securities Received As Collateral
SecuritiesReceivedAsCollateral
8000000 USD
CY2011Q4 aep Volume Of Power Derivatives Contract
VolumeOfPowerDerivativesContract
609000000 pure
CY2010Q4 aep Volume Of Power Derivatives Contract
VolumeOfPowerDerivativesContract
652000000 pure
CY2011Q4 aep Volume Of Coal Derivatives Contract
VolumeOfCoalDerivativesContract
21000000 pure
CY2010Q4 aep Volume Of Coal Derivatives Contract
VolumeOfCoalDerivativesContract
63000000 pure
CY2011 aep Loss On Fair Value Portion Of Long Term Debt
LossOnFairValuePortionOfLongTermDebt
6000000 USD
CY2011 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
41000000 USD
CY2010 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
123000000 USD
CY2010 aep Loss On Fair Value Portion Of Long Term Debt
LossOnFairValuePortionOfLongTermDebt
6000000 USD
CY2009 us-gaap Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
128000000 USD
CY2010Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
11000000 USD
CY2011 aep Lease Rental Costs Textblock
LeaseRentalCostsTextblock
<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td colspan="2" style="width: 377px; text-align:center;border-color:#000000;min-width:377px;">&#160;</td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;">&#160;</td><td colspan="8" style="width: 294px; text-align:center;border-color:#000000;min-width:294px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">Years Ended December 31,</font></td></tr><tr style="height: 16px"><td colspan="2" style="width: 377px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:377px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">Lease Rental Costs</font></td><td style="width: 15px; text-align:center;border-color:#000000;min-width:15px;">&#160;</td><td colspan="2" style="width: 90px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:90px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">2011</font></td><td style="width: 12px; 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CY2011Q4 aep Generation Property Plant And Equipment Under Capital Leases
GenerationPropertyPlantAndEquipmentUnderCapitalLeases
104000000 USD
CY2011 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
-33000000 USD
CY2009Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
-15000000 USD
CY2010 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
22000000 USD
CY2008Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
-22000000 USD
CY2009 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
5000000 USD
CY2011Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
-23000000 USD
CY2011Q4 aep Hedging Assets
HedgingAssets
20000000 USD
CY2011Q4 aep Hedging Liabilities
HedgingLiabilities
67000000 USD
CY2010Q4 aep Hedging Assets
HedgingAssets
38000000 USD
CY2010Q4 aep Hedging Liabilities
HedgingLiabilities
6000000 USD
CY2011 us-gaap Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
-5000000 USD
CY2010 us-gaap Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
1000000 USD
CY2011 us-gaap Maximum Length Of Time Hedged In Price Risk Cash Flow Hedge
MaximumLengthOfTimeHedgedInPriceRiskCashFlowHedge
30
CY2011 aep Collateral Required
CollateralRequired
<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 444px; text-align:left;border-color:#000000;min-width:444px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td colspan="5" style="width: 202px; text-align:center;border-color:#000000;min-width:202px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">December 31,</font></td></tr><tr style="height: 17px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 444px; text-align:left;border-color:#000000;min-width:444px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td colspan="2" style="width: 92px; 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CY2011Q4 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
32000000 USD
CY2010Q4 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
20000000 USD
CY2011Q4 us-gaap Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
39000000 USD
CY2010Q4 us-gaap Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
45000000 USD
CY2011Q4 aep Amount Attributable To Rto And Iso Activities
AmountAttributableToRtoAndIsoActivities
38000000 USD
CY2010Q4 aep Amount Attributable To Rto And Iso Activities
AmountAttributableToRtoAndIsoActivities
44000000 USD
CY2011Q4 aep Fair Value Of Derivative Liabilities Subject To Cross Default Provisions
FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions
515000000 USD
CY2010Q4 aep Fair Value Of Derivative Liabilities Subject To Cross Default Provisions
FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions
401000000 USD
CY2011Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
56000000 USD
CY2010Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
81000000 USD
CY2011Q4 us-gaap Assets Needed For Immediate Settlement Aggregate Fair Value
AssetsNeededForImmediateSettlementAggregateFairValue
291000000 USD
CY2010Q4 us-gaap Assets Needed For Immediate Settlement Aggregate Fair Value
AssetsNeededForImmediateSettlementAggregateFairValue
213000000 USD
CY2011 aep Cross Default Provision
CrossDefaultProvision
<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 17px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 454px; text-align:left;border-color:#000000;min-width:454px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td colspan="5" style="width: 202px; text-align:center;border-color:#000000;min-width:202px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">December 31,</font></td></tr><tr style="height: 17px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 454px; text-align:left;border-color:#000000;min-width:454px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td colspan="2" style="width: 92px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:92px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">2011</font></td><td style="width: 18px; 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CY2010Q4 us-gaap Long Term Debt
LongTermDebt
16811000000 USD
CY2011Q4 us-gaap Long Term Debt
LongTermDebt
16516000000 USD
CY2011Q4 us-gaap Long Term Debt Fair Value
LongTermDebtFairValue
19259000000 USD
CY2010Q4 us-gaap Long Term Debt Fair Value
LongTermDebtFairValue
18285000000 USD
CY2010Q4 aep Generation Property Plant And Equipment Under Capital Leases
GenerationPropertyPlantAndEquipmentUnderCapitalLeases
97000000 USD
CY2011Q4 us-gaap Capital Leases Lessee Balance Sheet Assets By Major Class Other Property Plant And Equipment
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassOtherPropertyPlantAndEquipment
485000000 USD
CY2010Q4 us-gaap Capital Leases Lessee Balance Sheet Assets By Major Class Other Property Plant And Equipment
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassOtherPropertyPlantAndEquipment
482000000 USD
CY2011Q4 us-gaap Capital Leased Assets Gross
CapitalLeasedAssetsGross
589000000 USD
CY2010Q4 us-gaap Capital Leased Assets Gross
CapitalLeasedAssetsGross
579000000 USD
CY2011Q4 us-gaap Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
452000000 USD
CY2010Q4 us-gaap Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
471000000 USD
CY2011Q4 us-gaap Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
137000000 USD
CY2010Q4 us-gaap Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
108000000 USD
CY2011 aep Obligations Under Capital Leases
ObligationsUnderCapitalLeases
<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 16px"><td style="width: 48px; text-align:left;border-color:#000000;min-width:48px;">&#160;</td><td style="width: 383px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:383px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">Obligations Under Capital Leases</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 80px; text-align:right;border-color:#000000;min-width:80px;">&#160;</td><td style="width: 12px; text-align:right;border-color:#000000;min-width:12px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 80px; text-align:right;border-color:#000000;min-width:80px;">&#160;</td></tr><tr style="height: 16px"><td style="width: 48px; text-align:left;border-color:#000000;min-width:48px;">&#160;</td><td style="width: 383px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:383px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Noncurrent Liability</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">$</font></td><td style="width: 80px; text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 384</font></td><td style="width: 12px; text-align:right;border-color:#000000;min-width:12px;">&#160;</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">$</font></td><td style="width: 80px; text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 398</font></td></tr><tr style="height: 16px"><td style="width: 48px; text-align:left;border-color:#000000;min-width:48px;">&#160;</td><td style="width: 383px; text-align:left;border-color:#000000;min-width:383px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Liability Due Within One Year</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;">&#160;</td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 80px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 74</font></td><td style="width: 12px; text-align:right;border-color:#000000;min-width:12px;">&#160;</td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 80px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 76</font></td></tr><tr style="height: 16px"><td style="width: 48px; text-align:left;border-color:#000000;min-width:48px;">&#160;</td><td style="width: 383px; text-align:left;border-color:#000000;min-width:383px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Total Obligations Under Capital Leases</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;">&#160;</td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">$</font></td><td style="width: 80px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 458</font></td><td style="width: 12px; text-align:right;border-color:#000000;min-width:12px;">&#160;</td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">$</font></td><td style="width: 80px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:80px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 474</font></td></tr></table></div>
CY2011Q4 us-gaap Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
384000000 USD
CY2011Q4 us-gaap Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
74000000 USD
CY2011Q4 us-gaap Capital Lease Obligations
CapitalLeaseObligations
458000000 USD
CY2010Q4 us-gaap Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
398000000 USD
CY2010Q4 us-gaap Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
76000000 USD
CY2010Q4 us-gaap Capital Lease Obligations
CapitalLeaseObligations
474000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
96000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
316000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
81000000 USD
CY2011 us-gaap Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
268000000 USD
CY2011 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
154000000 USD
CY2011 aep Gross Realized Gains On Investment Sales On Short Term Investment
GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment
4000000 USD
CY2010 aep Gross Realized Losses On Investment Sales On Short Term Investment
GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment
0 USD
CY2011 aep Gross Realized Losses On Investment Sales On Short Term Investment
GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment
0 USD
CY2010 us-gaap Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
455000000 USD
CY2010 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
503000000 USD
CY2010 aep Gross Realized Gains On Investment Sales On Short Term Investment
GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment
16000000 USD
CY2009 us-gaap Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
35000000 USD
CY2009 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
82000000 USD
CY2009 aep Gross Realized Gains On Investment Sales On Short Term Investment
GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment
0 USD
CY2009 aep Gross Realized Losses On Investment Sales On Short Term Investment
GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment
0 USD
CY2009 us-gaap Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount
MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount
9000000 USD
CY2009 aep Other Than Temporary Impairments Of Other Temporary Investments Net Of Tax
OtherThanTemporaryImpairmentsOfOtherTemporaryInvestmentsNetOfTax
6000000 USD
CY2011 aep Amount Of Gain Loss Reclassified From Accumulated Other Comprehensive Income To Interest Income On Statement Of Income
AmountOfGainLossReclassifiedFromAccumulatedOtherComprehensiveIncomeToInterestIncomeOnStatementOfIncome
-3000000 USD
CY2011Q4 aep Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease For Items Still Held
OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseForItemsStillHeld
1000000 USD
CY2010Q4 aep Temporary Impairments
TemporaryImpairments
-126000000 USD
CY2010Q4 aep Gross Unrealized Gains
GrossUnrealizedGains
209000000 USD
CY2011Q4 aep Gross Unrealized Gains
GrossUnrealizedGains
281000000 USD
CY2011Q4 aep Temporary Impairments
TemporaryImpairments
-85000000 USD
CY2011 aep Proceeds From Investment Sales
ProceedsFromInvestmentSales
1111000000 USD
CY2010 aep Proceeds From Investment Sales
ProceedsFromInvestmentSales
1362000000 USD
CY2010 aep Purchases Of Investments
PurchasesOfInvestments
1415000000 USD
CY2011 aep Purchases Of Investments
PurchasesOfInvestments
1167000000 USD
CY2011 aep Gross Realized Gains On Investment Sales
GrossRealizedGainsOnInvestmentSales
33000000 USD
CY2010 aep Gross Realized Gains On Investment Sales
GrossRealizedGainsOnInvestmentSales
12000000 USD
CY2010 aep Gross Realized Losses On Investment Sales
GrossRealizedLossesOnInvestmentSales
2000000 USD
CY2011 aep Gross Realized Losses On Investment Sales
GrossRealizedLossesOnInvestmentSales
22000000 USD
CY2009 aep Proceeds From Investment Sales
ProceedsFromInvestmentSales
713000000 USD
CY2009 aep Purchases Of Investments
PurchasesOfInvestments
771000000 USD
CY2009 aep Gross Realized Gains On Investment Sales
GrossRealizedGainsOnInvestmentSales
28000000 USD
CY2009 aep Gross Realized Losses On Investment Sales
GrossRealizedLossesOnInvestmentSales
1000000 USD
CY2010Q4 aep Adjusted Cost Of Debt Securities
AdjustedCostOfDebtSecurities
835000000 USD
CY2011Q4 aep Adjusted Cost Of Debt Securities
AdjustedCostOfDebtSecurities
862000000 USD
CY2011Q4 aep Adjusted Cost Of Equity Securities
AdjustedCostOfEquitySecurities
431000000 USD
CY2010Q4 aep Adjusted Cost Of Equity Securities
AdjustedCostOfEquitySecurities
451000000 USD
CY2011Q4 us-gaap Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
221000000 USD
CY2011Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
2703000000 USD
CY2010Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
2867000000 USD
CY2010Q4 us-gaap Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
294000000 USD
CY2011 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings
-10000000 USD
CY2011 aep Unrealized Gain Loss Included In Net Income Relating To Assets Still Held At Reporting Date
UnrealizedGainLossIncludedInNetIncomeRelatingToAssetsStillHeldAtReportingDate
9000000 USD
CY2011 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome
0 USD
CY2011 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
-3000000 USD
CY2011 aep Changes In Fair Value Allocated To Regulated Jurisdiction
ChangesInFairValueAllocatedToRegulatedJurisdiction
-13000000 USD
CY2011Q4 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
69000000 USD
CY2011 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
13000000 USD
CY2011 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
-12000000 USD
CY2009Q4 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
62000000 USD
CY2010 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome
0 USD
CY2010 aep Unrealized Gain Loss Included In Net Income Relating To Assets Still Held At Reporting Date
UnrealizedGainLossIncludedInNetIncomeRelatingToAssetsStillHeldAtReportingDate
63000000 USD
CY2010 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings
5000000 USD
CY2010 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
-25000000 USD
CY2010 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
18000000 USD
CY2010 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
-53000000 USD
CY2010 aep Changes In Fair Value Allocated To Regulated Jurisdiction
ChangesInFairValueAllocatedToRegulatedJurisdiction
15000000 USD
CY2010Q4 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
85000000 USD
CY2008Q4 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
49000000 USD
CY2009 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings
-4000000 USD
CY2009 aep Unrealized Gain Loss Included In Net Income Relating To Assets Still Held At Reporting Date
UnrealizedGainLossIncludedInNetIncomeRelatingToAssetsStillHeldAtReportingDate
44000000 USD
CY2009 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome
0 USD
CY2009 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
-17000000 USD
CY2009 aep Changes In Fair Value Allocated To Regulated Jurisdiction
ChangesInFairValueAllocatedToRegulatedJurisdiction
15000000 USD
CY2009 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
-25000000 USD
CY2009 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
-575000000 USD
CY2009 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
1171000000 USD
CY2009 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
596000000 USD
CY2009 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
-76000000 USD
CY2009 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
55000000 USD
CY2009 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
-21000000 USD
CY2009 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
0 USD
CY2009 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
0 USD
CY2009 us-gaap Foreign Income Tax Expense Benefit Continuing Operations
ForeignIncomeTaxExpenseBenefitContinuingOperations
0 USD
CY2010 us-gaap Foreign Income Tax Expense Benefit Continuing Operations
ForeignIncomeTaxExpenseBenefitContinuingOperations
-1000000 USD
CY2010 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
-1000000 USD
CY2010 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
0 USD
CY2010 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
38000000 USD
CY2010 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
-20000000 USD
CY2010 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
18000000 USD
CY2011 us-gaap Foreign Income Tax Expense Benefit Continuing Operations
ForeignIncomeTaxExpenseBenefitContinuingOperations
0 USD
CY2011 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
0 USD
CY2011 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
-25000000 USD
CY2011 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
37000000 USD
CY2011 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
12000000 USD
CY2011 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
0 USD
CY2011 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
786000000 USD
CY2011 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
806000000 USD
CY2011 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
20000000 USD
CY2010 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
-134000000 USD
CY2010 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
626000000 USD
CY2011 aep Increase Decrease In Income Taxes Due To Tax Reserve Adjustments
IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments
2000000 USD
CY2011 us-gaap Income Tax Reconciliation Tax Settlements State And Local
IncomeTaxReconciliationTaxSettlementsStateAndLocal
-22000000 USD
CY2011 aep Increase Decrease In Income Taxes Due To Energy Production Credits
IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits
-18000000 USD
CY2011 aep Increase Decrease In Income Taxes Afudc
IncreaseDecreaseInIncomeTaxesAFUDC
-42000000 USD
CY2011 us-gaap Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy
IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy
1000000 USD
CY2011Q4 us-gaap Minimum Lease Payments Sale Leaseback Transactions
MinimumLeasePaymentsSaleLeasebackTransactions
383000 USD
CY2010 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
760000000 USD
CY2010 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1861000000 USD
CY2011 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
2394000000 USD
CY2009 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1945000000 USD
CY2009 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
681000000 USD
CY2009 us-gaap Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
31000000 USD
CY2009 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
-19000000 USD
CY2009 aep Increase Decrease In Income Taxes Due To Energy Production Credits
IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits
-15000000 USD
CY2009 us-gaap Income Tax Reconciliation Tax Settlements State And Local
IncomeTaxReconciliationTaxSettlementsStateAndLocal
-14000000 USD
CY2009 aep Increase Decrease In Income Taxes Due To Removal Costs
IncreaseDecreaseInIncomeTaxesDueToRemovalCosts
-19000000 USD
CY2009 aep Increase Decrease In Income Taxes Afudc
IncreaseDecreaseInIncomeTaxesAFUDC
-36000000 USD
CY2009 us-gaap Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy
IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy
-11000000 USD
CY2009 aep Increase Decrease In Income Taxes Due To Tax Reserve Adjustments
IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments
-6000000 USD
CY2009 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
-17000000 USD
CY2011 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
-15000000 USD
CY2011 us-gaap Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
41000000 USD
CY2011 aep Increase Decrease In Income Taxes Due To Removal Costs
IncreaseDecreaseInIncomeTaxesDueToRemovalCosts
-20000000 USD
CY2011 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
838000000 USD
CY2011 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
-33000000 USD
CY2010 us-gaap Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
47000000 USD
CY2010 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
-16000000 USD
CY2010 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
651000000 USD
CY2010 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
26000000 USD
CY2010 us-gaap Income Tax Reconciliation Tax Settlements State And Local
IncomeTaxReconciliationTaxSettlementsStateAndLocal
11000000 USD
CY2010 aep Increase Decrease In Income Taxes Afudc
IncreaseDecreaseInIncomeTaxesAFUDC
-33000000 USD
CY2010 aep Increase Decrease In Income Taxes Due To Energy Production Credits
IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits
-20000000 USD
CY2010 us-gaap Income Tax Reconciliation Deductions Medicare Prescription Drug Benefit Subsidy
IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy
12000000 USD
CY2010 aep Increase Decrease In Income Taxes Due To Removal Costs
IncreaseDecreaseInIncomeTaxesDueToRemovalCosts
-19000000 USD
CY2010 aep Increase Decrease In Income Taxes Due To Tax Reserve Adjustments
IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments
-16000000 USD
CY2010 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.346 pure
CY2011 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.342 pure
CY2009 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.296 pure
CY2009 us-gaap Tax Effect Of Extraordinary Item
TaxEffectOfExtraordinaryItem
3000000 USD
CY2010 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35 pure
CY2009 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35 pure
CY2011 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35 pure
CY2011 us-gaap Tax Effect Of Extraordinary Item
TaxEffectOfExtraordinaryItem
-112000000 USD
CY2011 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
86000000 USD
CY2010 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
0 USD
CY2009 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
0 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
288000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
67000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
264000000 USD
CY2011Q4 us-gaap Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
55000000 USD
CY2011Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
2855000000 USD
CY2011Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
11185000000 USD
CY2011Q4 aep Deferred Tax Assets Liabilities Net Property Related Temporary Differences
DeferredTaxAssetsLiabilitiesNetPropertyRelatedTemporaryDifferences
5963000000 USD
CY2011Q4 aep Amounts Due From Customers For Future Federal Income Taxes
AmountsDueFromCustomersForFutureFederalIncomeTaxes
259000000 USD
CY2011Q4 aep Deferred State Income Taxes
DeferredStateIncomeTaxes
668000000 USD
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Deferredtaxassetsliabilitiessecuritizedtransitionassets
621000000 USD
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DeferredTaxLiabilitiesRegulatoryAssets
1208000000 USD
CY2011Q4 aep Accrued Pensions
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149000000 USD
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DeferredTaxLiabilitiesOtherComprehensiveIncome
254000000 USD
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436000000 USD
CY2011Q4 aep All Other Net
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223000000 USD
CY2011Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
-8330000000 USD
CY2010Q4 us-gaap Deferred Tax Liabilities Other Comprehensive Income
DeferredTaxLiabilitiesOtherComprehensiveIncome
207000000 USD
CY2010Q4 aep Deferred Tax Assets Liabilities Net Property Related Temporary Differences
DeferredTaxAssetsLiabilitiesNetPropertyRelatedTemporaryDifferences
5301000000 USD
CY2010Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
2519000000 USD
CY2010Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
10009000000 USD
CY2010Q4 aep Deferred State Income Taxes
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622000000 USD
CY2010Q4 aep Deferredtaxassetsliabilitiessecuritizedtransitionassets
Deferredtaxassetsliabilitiessecuritizedtransitionassets
651000000 USD
CY2010Q4 us-gaap Deferred Tax Liabilities Regulatory Assets
DeferredTaxLiabilitiesRegulatoryAssets
867000000 USD
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DeferredTaxAssetsLiabilitiesNet
-7490000000 USD
CY2010Q4 aep Accrued Pensions
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218000000 USD
CY2010Q4 aep Amounts Due From Customers For Future Federal Income Taxes
AmountsDueFromCustomersForFutureFederalIncomeTaxes
250000000 USD
CY2010Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
395000000 USD
CY2010Q4 aep All Other Net
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185000000 USD
CY2011Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
424000000 USD
CY2010Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
356000000 USD
CY2011Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
125000000 USD
CY2010Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
0 USD
CY2010Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
0 USD
CY2011Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
182000000 USD
CY2011 aep Federal Net Income Tax Operating Loss
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226000000 USD
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182000000 USD
CY2011Q4 us-gaap Other Tax Carryforward Gross Amount
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74000000 USD
CY2011Q4 us-gaap Tax Credit Carryforward Valuation Allowance
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30000000 USD
CY2011Q4 us-gaap Tax Credit Carryforward Deferred Tax Asset
TaxCreditCarryforwardDeferredTaxAsset
56000000 USD
CY2011 us-gaap Tax Credit Carryforward Expiration Dates
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2028 through 2031
CY2011 us-gaap Other Tax Carryforward Expiration Dates
OtherTaxCarryforwardExpirationDates
2013 through 2021
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81000000 USD
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29000000 USD
CY2010 us-gaap Income Tax Examination Interest Expense
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8000000 USD
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11000000 USD
CY2010 aep Reversal Of Prior Period Interest Expense
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5000000 USD
CY2011 aep Reversal Of Prior Period Interest Expense
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13000000 USD
CY2011 aep Income Tax Examination Interest Expense Interest Income
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22000000 USD
CY2011 us-gaap Income Tax Examination Interest Expense
IncomeTaxExaminationInterestExpense
8000000 USD
CY2009 us-gaap Income Tax Examination Interest Expense
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1000000 USD
CY2009 aep Reversal Of Prior Period Interest Expense
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5000000 USD
CY2009 aep Income Tax Examination Interest Expense Interest Income
IncomeTaxExaminationInterestExpenseInterestIncome
5000000 USD
CY2011Q4 us-gaap Income Tax Examination Penalties And Interest Accrued
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6000000 USD
CY2010Q4 us-gaap Income Tax Examination Penalties And Interest Accrued
IncomeTaxExaminationPenaltiesAndInterestAccrued
21000000 USD
CY2011Q4 aep Accrual For Receipt Of Interest
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13000000 USD
CY2010Q4 aep Accrual For Receipt Of Interest
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42000000 USD
CY2008Q4 us-gaap Unrecognized Tax Benefits
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237000000 USD
CY2009Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
237000000 USD
CY2010Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
219000000 USD
CY2011Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
168000000 USD
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UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
51000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
40000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
56000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
43000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
43000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
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65000000 USD
CY2011 aep Reduced Corporate Income Tax Rate
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0.065 pure
CY2011Q4 aep New Master Lease Agreement With Ge
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137000000 USD
CY2011Q4 aep Capital Leases Refinanced With Ge
CapitalLeasesRefinancedWithGE
60000000 USD
CY2011Q4 aep Operating Leases Refinanced With Ge
OperatingLeasesRefinancedWithGE
77000000 USD
CY2011Q4 aep Leased Assets Purchased From Ge
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5000000 USD
CY2011Q4 aep Previously Leased Assets Under New Capital Lease
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11000000 USD
CY2011Q4 aep Percent Limit Unamortized Balance
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0.78 pure
CY2011Q4 aep Max Percent Unamortized Balance Guarantee To Lessor
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0.78 pure
CY2011Q4 aep Max Potential Loss On Master Lease Agreements
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14000000 USD
CY2011 aep Traditional Corporate Net Income Tax
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0.06 pure
CY2011 aep Sale Proceeds Guaranteed By Lessor Under Current Five Year Lease Term
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0.84 pure
CY2011 aep Sale Proceeds Guaranteed By Lessor At End Of Twenty Year Term
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0.77 pure
CY2011 aep Cost Of Electric Draglines To Be Used For Mining Operations
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47000000 USD
CY2011 aep Dragline Financed Under Capital Lease
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53000000 USD
CY2011Q4 aep Portion Of Unamortized Nuclear Fuel Inventory Sold At Cost
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85000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
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10000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
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0 USD
CY2009 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
16000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
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0 USD
CY2010 us-gaap Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
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6000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
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0 USD
CY2011 us-gaap Unrecognized Tax Benefits Increases Resulting From Settlements With Taxing Authorities
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0 USD
CY2010 us-gaap Unrecognized Tax Benefits Increases Resulting From Settlements With Taxing Authorities
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0 USD
CY2009 us-gaap Unrecognized Tax Benefits Increases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities
-1000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
38000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
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7000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
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8000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
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2000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
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31000000 USD
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0 USD
CY2011 aep Period With No Change In Unrecognized Tax Benefits
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12 pure
CY2010Q4 aep Decrease In Deferred Tax Assets
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56000000 USD
CY2010Q4 aep Net Regulatory Tax Assets Recorded
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35000000 USD
CY2010Q4 aep Decrease In Net Income
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21000000 USD
CY2011 aep New Commercial Activity Tax
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0.0026 pure
CY2011 aep Tax Being Phased In Percent
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0.23 pure
CY2011 aep Commercial Activity Tax Expense
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14000000 USD
CY2010 aep Commercial Activity Tax Expense
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13000000 USD
CY2009 aep Commercial Activity Tax Expense
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11000000 USD
CY2010 aep Cash Flow Benefit Small Business Jobs Act
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318000000 USD
CY2011 aep Increased Bonus Depreciation
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CY2010 aep Cash Flow Benefit Due To Bonus Depreciation Provision
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419000000 USD
CY2011Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
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111000000 USD
CY2009Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
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137000000 USD
CY2010Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
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112000000 USD
CY2008 aep Credit Allocation To Project By Irs
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134000000 USD
CY2011 aep Original Corporate Income Tax Rate
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0.085 pure
CY2011 aep Reduction In Income Tax New Rate
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0.0775 pure
CY2011 aep Reduction In Indiana Corporate Tax Rate
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CY2011 us-gaap Lease And Rental Expense
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343000000 USD
CY2010 us-gaap Lease And Rental Expense
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343000000 USD
CY2009 us-gaap Lease And Rental Expense
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354000000 USD
CY2011 us-gaap Capital Leases Income Statement Amortization Expense
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72000000 USD
CY2010 us-gaap Capital Leases Income Statement Amortization Expense
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97000000 USD
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83000000 USD
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32000000 USD
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26000000 USD
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13000000 USD
CY2011 aep Total Lease Rental Costs
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447000000 USD
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466000000 USD
CY2009 aep Total Lease Rental Costs
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450000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Four Years
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245000000 USD
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-268000000 USD
CY2011 us-gaap Income Taxes Paid Net
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-118000000 USD
CY2009 us-gaap Extraordinary Items Gross
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CY2011 aep Effects Of Regulation Textblock
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<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;font-weight:bold;margin-left:0px;">4</font><font style="font-family:Times New Roman;font-size:11pt;font-weight:bold;">. </font><font style="font-family:Times New Roman;font-size:11pt;font-weight:bold;text-decoration:underline;">EFFECTS OF REGULATION</font></p><p style='margin-top:0pt; margin-bottom:0pt'>&#160;</p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:11pt;margin-left:0px;">Regulatory assets are comprised of the following items:</font></p><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 13px"><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;">&#160;</td><td style="width: 8px; text-align:left;border-color:#000000;min-width:8px;">&#160;</td><td style="width: 8px; text-align:left;border-color:#000000;min-width:8px;">&#160;</td><td style="width: 8px; 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CY2011 aep Litigation Settlement Impact On Financial Statements
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478000000 USD
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0.675 pure
CY2011 aep Period To Defer Interest Payments On Debentures
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1200000000 USD
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CY2011Q4 us-gaap Debt Weighted Average Interest Rate
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CY2010Q4 us-gaap Debt Weighted Average Interest Rate
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0.0052 pure
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0.0215 pure
CY2011Q4 us-gaap Line Of Credit Facility Interest Rate At Period End
LineOfCreditFacilityInterestRateAtPeriodEnd
0.0179 pure
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375000000 USD
CY2011Q4 aep Commitment From Bank Conduits That Expire In Three Years
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375000000 USD
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800000000 USD
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425000000 USD
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0.0027 pure
CY2011 aep Net Uncollectible Accounts Receivable Written Off
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37000000 USD
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22000000 USD
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7043000000 USD
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28000000 USD
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0.0031 pure
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0.0057 pure
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18000000 USD
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BadDebtReservesRelatedToSecuritizedSaleOfAccountsReceivable
26000000 USD
CY2010Q4 aep Accounts Receivable Retained Interest And Pledged As Collateral Less Uncollectible Accounts
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923000000 USD
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902000000 USD
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370000000 USD
CY2010Q4 aep Unbilled Receivables Related To Securitization Sale Of Accounts Receivable
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354000000 USD
CY2011Q4 us-gaap Principal Amount Outstanding On Loans Held For Sale Or Securitization
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666000000 USD
CY2010Q4 us-gaap Principal Amount Outstanding On Loans Held For Sale Or Securitization
PrincipalAmountOutstandingOnLoansHeldForSaleOrSecuritization
690000000 USD
CY2010Q4 us-gaap Delinquent Amount At End Of Period On Loans Managed And Securitized
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50000000 USD
CY2011Q4 us-gaap Delinquent Amount At End Of Period On Loans Managed And Securitized
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38000000 USD
CY2011Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
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20000000 shares
CY2011Q4 us-gaap Deferred Compensation Arrangement With Individual Shares Authorized For Issuance
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10000000 shares
CY2009Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
1259000000 USD
CY2010Q4 aep Dhlc Deconsolidation
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AssetRetirementObligationAccretionExpense
75000000 USD
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32000000 USD
CY2010 us-gaap Asset Retirement Obligation Liabilities Settled
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-20000000 USD
CY2010 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
64000000 USD
CY2010Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
1398000000 USD
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AssetRetirementObligationAccretionExpense
82000000 USD
CY2011 us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
7000000 USD
CY2011 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
-26000000 USD
CY2011 us-gaap Asset Retirement Obligation Revision Of Estimate
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13000000 USD
CY2011Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
1474000000 USD
CY2010Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
4000000 USD
CY2011Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
2000000 USD
CY2010Q4 us-gaap Decommissioning Liability Noncurrent
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930000000 USD
CY2011Q4 us-gaap Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
1300000000 USD
CY2011 us-gaap Payments For Restructuring
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-15000000 USD
CY2010Q4 us-gaap Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
1200000000 USD
CY2011Q4 us-gaap Decommissioning Liability Noncurrent
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979000000 USD
CY2011 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
63000000 USD
CY2010 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
53000000 USD
CY2009 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
67000000 USD
CY2010Q4 aep Number Employees Severed Voluntary
NumberEmployeesSeveredVoluntary
2461 pure
CY2010 us-gaap Severance Costs
SeveranceCosts
293000000 USD
CY2011 us-gaap Restructuring And Related Cost Cost Incurred To Date
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0 USD
CY2011Q4 us-gaap Restructuring Reserve
RestructuringReserve
0 USD
CY2011 us-gaap Restructuring Reserve Accrual Adjustment
RestructuringReserveAccrualAdjustment
-2000000 USD
CY2010Q4 us-gaap Restructuring Reserve
RestructuringReserve
17000000 USD
CY2011Q2 us-gaap Revenues
Revenues
3609000000 USD
CY2011Q3 us-gaap Revenues
Revenues
4333000000 USD
CY2011Q4 us-gaap Revenues
Revenues
3444000000 USD
CY2011Q1 us-gaap Revenues
Revenues
3730000000 USD
CY2011Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
832000000 USD
CY2011Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
717000000 USD
CY2011Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
890000000 USD
CY2011Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
343000000 USD
CY2011Q1 us-gaap Profit Loss
ProfitLoss
355000000 USD
CY2011Q2 us-gaap Profit Loss
ProfitLoss
353000000 USD
CY2011Q3 us-gaap Profit Loss
ProfitLoss
930000000 USD
CY2011Q4 us-gaap Profit Loss
ProfitLoss
311000000 USD
CY2011Q1 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
353000000 USD
CY2011Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
352000000 USD
CY2011Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
928000000 USD
CY2011Q4 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
308000000 USD
CY2011Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.73
CY2011Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.73
CY2011Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.92
CY2011Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.63
CY2011Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.73
CY2011Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.73
CY2011Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.92
CY2011Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.63
CY2011Q1 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
355000000 USD
CY2011Q2 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
353000000 USD
CY2011Q3 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
657000000 USD
CY2011Q4 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
211000000 USD
CY2011Q1 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q2 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q3 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
273000000 USD
CY2011Q4 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
100000000 USD
CY2011Q1 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
353000000 USD
CY2011Q2 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
352000000 USD
CY2011Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
655000000 USD
CY2011Q4 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
208000000 USD
CY2011Q1 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.73
CY2011Q2 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.73
CY2011Q3 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
1.35
CY2011Q4 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.43
CY2011Q1 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0
CY2011Q2 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0
CY2011Q3 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.57
CY2011Q4 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.20
CY2011Q1 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.73
CY2011Q2 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.73
CY2011Q3 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
1.35
CY2011Q4 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.43
CY2011Q1 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0
CY2011Q2 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0
CY2011Q3 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.57
CY2011Q4 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.20
CY2010Q1 us-gaap Revenues
Revenues
3569000000 USD
CY2010Q2 us-gaap Revenues
Revenues
3360000000 USD
CY2010Q3 us-gaap Revenues
Revenues
4064000000 USD
CY2010Q4 us-gaap Revenues
Revenues
3434000000 USD
CY2010Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
758000000 USD
CY2010Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
394000000 USD
CY2010Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
1025000000 USD
CY2010Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
486000000 USD
CY2010Q1 us-gaap Profit Loss
ProfitLoss
346000000 USD
CY2010Q2 us-gaap Profit Loss
ProfitLoss
137000000 USD
CY2010Q3 us-gaap Profit Loss
ProfitLoss
557000000 USD
CY2010Q4 us-gaap Profit Loss
ProfitLoss
178000000 USD
CY2010Q1 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
344000000 USD
CY2010Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
136000000 USD
CY2010Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
555000000 USD
CY2010Q4 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
176000000 USD
CY2010Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.72
CY2010Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.28
CY2010Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.16
CY2010Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.37
CY2010Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.72
CY2010Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.28
CY2010Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.16
CY2010Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.37
CY2010 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2011 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2010Q4 us-gaap Acquired Finite Lived Intangible Asset Amount
AcquiredFiniteLivedIntangibleAssetAmount
1200000 USD
CY2011Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
13100000 USD
CY2011Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
13100000 USD
CY2010Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
13100000 USD
CY2010Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
11900000 USD
CY2011 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000 USD
CY2010 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000 USD
CY2009 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
3000000 USD

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