$DUK
Duke Energy CORP Stock $duk

$duk Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000132616013000009 Filed on March 01, 2013

Income Statement

Concept	2012 Q4	2012 Q3	2012 Q2
Revenue	$5.695B	$6.722B	$3.577B
YoY Change	69.09%	69.58%	1.22%
Cost Of Revenue	$1.814B	$2.262B	$891.0M
YoY Change	129.04%	125.07%	-0.67%
Gross Profit	$3.881B	$4.460B	$2.686B
YoY Change	50.66%	50.73%	1.86%
Gross Profit Margin	68.15%	66.35%	75.09%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$787.0M	$788.0M	$533.0M
YoY Change	51.93%	52.42%	9.45%
% of Gross Profit	20.28%	17.67%	19.84%
Operating Expenses	$3.111B	$3.130B	$1.904B
YoY Change	53.1%	65.87%	-2.51%
Operating Profit	$767.0M	$1.078B	$786.0M
YoY Change	48.36%	40.55%	15.76%
Interest Expense	-$355.0M	$401.0M	$232.0M
YoY Change	89.84%	88.26%	14.29%
% of Operating Profit	-46.28%	37.2%	29.52%
Other Income/Expense, Net	$106.0M	$165.0M	$109.0M
YoY Change	34.18%	34.15%	-30.57%
Pretax Income	$546.0M	$842.0M	$663.0M
YoY Change	33.5%	24.37%	4.74%
Income Tax	$140.0M	$248.0M	$214.0M
% Of Pretax Income	25.64%	29.45%	32.28%
Net Earnings	$435.0M	$594.0M	$444.0M
YoY Change	51.04%	25.85%	2.07%
Net Earnings / Revenue	7.64%	8.84%	12.41%
Basic Earnings Per Share	$0.62	$0.85	$0.99
Diluted Earnings Per Share	$0.62	$0.85	$0.99
COMMON SHARES
Basic Shares Outstanding	704.2M shares	699.0M shares	446.0M shares
Diluted Shares Outstanding		699.0M shares	446.0M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.757B	$2.096B	$1.760B
YoY Change	-23.61%	-3.76%	28.37%
Cash & Equivalents	$1.424B	$1.761B	$1.526B
Short-Term Investments	$333.0M	$335.0M	$234.0M
Other Short-Term Assets	$2.425B	$2.123B	$1.122B
YoY Change	130.73%	180.08%	27.65%
Inventory	$3.223B	$3.041B	$1.762B
Prepaid Expenses
Receivables	$2.717B	$2.846B	$1.843B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$10.12B	$10.11B	$6.487B
YoY Change	47.12%	61.1%	15.14%
LONG-TERM ASSETS
Property, Plant & Equipment	$68.56B	$69.03B	$43.79B
YoY Change	60.7%	64.84%	5.23%
Goodwill	$16.37B	$16.18B	$3.842B
YoY Change	325.18%
Intangibles	$372.0M	$359.0M	$357.0M
YoY Change	2.48%
Long-Term Investments	$483.0M	$542.0M	$450.0M
YoY Change	5.0%	18.08%	-1.53%
Other Assets	$2.904B	$2.186B	$1.894B
YoY Change	30.17%	-72.29%	-75.38%
Total Long-Term Assets	$103.7B	$101.9B	$56.54B
YoY Change	86.42%	86.97%	4.41%
TOTAL ASSETS
Total Short-Term Assets	$10.12B	$10.11B	$6.487B
Total Long-Term Assets	$103.7B	$101.9B	$56.54B
Total Assets	$113.9B	$112.0B	$63.03B
YoY Change	82.09%	84.3%	5.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.444B	$1.912B	$1.160B
YoY Change	70.55%	77.04%	-2.44%
Accrued Expenses	$907.0M	$1.075B	$613.0M
YoY Change	32.8%	52.05%	-2.7%
Deferred Revenue
YoY Change
Short-Term Debt	$1.057B	$600.0M	$1.062B
YoY Change	586.36%	-20.53%	279.29%
Long-Term Debt Due	$3.110B	$2.488B	$1.870B
YoY Change	64.2%	62.93%	85.52%
Total Short-Term Liabilities	$10.03B	$8.556B	$6.139B
YoY Change	81.42%	67.27%	39.97%
LONG-TERM LIABILITIES
Long-Term Debt	$36.35B	$35.20B	$17.54B
YoY Change	105.03%	100.17%	-0.84%
Other Long-Term Liabilities	$15.59B	$15.57B	$7.629B
YoY Change	108.13%	112.26%	4.65%
Total Long-Term Liabilities	$36.35B	$35.20B	$17.54B
YoY Change	105.03%	41.25%	-29.78%
TOTAL LIABILITIES
Total Short-Term Liabilities	$10.03B	$8.556B	$6.139B
Total Long-Term Liabilities	$36.35B	$35.20B	$17.54B
Total Liabilities	$46.38B	$43.75B	$23.68B
YoY Change	99.42%	15.2%	-36.36%
SHAREHOLDERS EQUITY
Retained Earnings	$1.889B	$1.995B	$1.598B
YoY Change	0.85%
Common Stock	$39.28B	$39.25B	$21.14B
YoY Change	85.87%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$40.86B	$40.91B	$22.42B
YoY Change
Total Liabilities & Shareholders Equity	$113.9B	$112.0B	$63.03B
YoY Change	82.09%	84.3%	5.42%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2012 Q2
OPERATING ACTIVITIES
Net Income	$435.0M	$594.0M	$444.0M
YoY Change	51.04%	25.85%	2.07%
Depreciation, Depletion And Amortization	$787.0M	$788.0M	$533.0M
YoY Change	51.93%	52.42%	9.45%
Cash From Operating Activities	$1.265B	$1.977B	$1.130B
YoY Change	96.12%	50.92%	49.47%
INVESTING ACTIVITIES
Capital Expenditures	-$1.656B	-$1.593B	-$1.264B
YoY Change	20.61%	51.43%	35.62%
Acquisitions
YoY Change
Other Investing Activities	-$552.0M	-$5.000M	$53.00M
YoY Change	-6233.33%	-97.22%	341.67%
Cash From Investing Activities	-$2.208B	-$1.598B	-$1.211B
YoY Change	61.88%	29.71%	31.63%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	606.0M	-144.0M	536.0M
YoY Change	-23.96%	-124.32%	400.93%
NET CHANGE
Cash From Operating Activities	1.265B	1.977B	1.130B
Cash From Investing Activities	-2.208B	-1.598B	-1.211B
Cash From Financing Activities	606.0M	-144.0M	536.0M
Net Change In Cash	-337.0M	235.0M	455.0M
YoY Change	-532.05%	-64.93%	-898.25%
FREE CASH FLOW
Cash From Operating Activities	$1.265B	$1.977B	$1.130B
Capital Expenditures	-$1.656B	-$1.593B	-$1.264B
Free Cash Flow	$2.921B	$3.570B	$2.394B
YoY Change	44.75%	51.14%	41.82%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Assets Current AssetsCurrent	10122000000
CY2011	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	8000000
CY2011	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	10589000000
CY2011	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3383000000
CY2011	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	557000000
CY2011	us-gaap	Revenues Revenues	14529000000
CY2012	us-gaap	Revenues Revenues	19624000000
CY2012	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	469000000
CY2012	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3534000000
CY2010	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	619000000
CY2010	us-gaap	Revenues Revenues	14272000000
CY2010	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	10723000000
CY2010	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	2930000000
CY2012	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	16000000
CY2010	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	153000000
CY2012	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	5006000000
CY2011	us-gaap	Cost Of Domestic Regulated Electric CostOfDomesticRegulatedElectric	3309000000
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	11760000000
CY2011	us-gaap	Cost Of Goods Sold Depreciation Depletion And Amortization CostOfGoodsSoldDepreciationDepletionAndAmortization	1806000000
CY2011	duk	Cost Of Natural Gas And Coal Sold CostOfNaturalGasAndCoalSold	348000000
CY2011	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	704000000
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	335000000
CY2011	us-gaap	Cost Of Worldwide Unregulated Electric CostOfWorldwideUnregulatedElectric	1488000000
CY2011	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	3770000000
CY2010	duk	Cost Of Natural Gas And Coal Sold CostOfNaturalGasAndCoalSold	381000000
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	726000000
CY2010	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	3825000000
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	11964000000
CY2010	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	702000000
CY2010	us-gaap	Cost Of Goods Sold Depreciation Depletion And Amortization CostOfGoodsSoldDepreciationDepletionAndAmortization	1786000000
CY2010	us-gaap	Cost Of Domestic Regulated Electric CostOfDomesticRegulatedElectric	3345000000
CY2010	us-gaap	Cost Of Worldwide Unregulated Electric CostOfWorldwideUnregulatedElectric	1199000000
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	2461000000
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	116000000
CY2010	duk	Impairments And Gains On Sales Of Unconsolidated Affiliates ImpairmentsAndGainsOnSalesOfUnconsolidatedAffiliates	103000000
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	370000000
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	589000000
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	35000000
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	40000000
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1670000000
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1202000000
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	19000000
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	267000000
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	71000000
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3000000
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	376000000
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	2777000000
CY2011	duk	Impairments And Gains On Sales Of Unconsolidated Affiliates ImpairmentsAndGainsOnSalesOfUnconsolidatedAffiliates	11000000
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	547000000
CY2012	duk	Impairments And Gains On Sales Of Unconsolidated Affiliates ImpairmentsAndGainsOnSalesOfUnconsolidatedAffiliates	22000000
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	397000000
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	3126000000
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	567000000
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	148000000
CY2012	us-gaap	Interest Expense InterestExpense	1242000000
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2451000000
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1746000000
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	36000000
CY2012	us-gaap	Profit Loss ProfitLoss	1782000000
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14000000
CY2012	us-gaap	Net Income Loss NetIncomeLoss	1768000000
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	8000000
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	1000000
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2465000000
CY2011	us-gaap	Profit Loss ProfitLoss	1714000000
CY2011	us-gaap	Interest Expense InterestExpense	859000000
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1713000000
CY2011	us-gaap	Net Income Loss NetIncomeLoss	1706000000
CY2010	us-gaap	Net Income Loss NetIncomeLoss	1320000000
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2210000000
CY2010	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1320000000
CY2010	us-gaap	Interest Expense InterestExpense	840000000
CY2010	us-gaap	Profit Loss ProfitLoss	1323000000
CY2010	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.99
CY2010	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.99
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.00
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.00
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.91
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	439000000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	440000000	shares
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.97
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	444000000	shares
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.83
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.83
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	444000000	shares
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.83
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.83
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.07
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.03
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.07
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	574000000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	575000000	shares
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.06
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.01
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.01
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	160000000
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.06
CY2012	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	15621000000
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	705000000
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	752000000
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	890000000
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-75000000
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-149000000
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	79000000
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-19000000
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	49000000
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-276000000
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-28000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-57000000
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1000000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	-1000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	4000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	3000000
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-76000000
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-243000000
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	373000000
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1706000000
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1471000000
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1696000000
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10000000
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1000000
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	23000000
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-150000000
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-31000000
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	1000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	1000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	0
CY2011	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	4000000
CY2010	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	8000000
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-9000000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	-1000000
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	6000000
CY2012	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	4000000
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1696000000
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1470000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-4000000
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	5000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4000000
CY2011	duk	Other Comprehensive Income Unrealized Holding Gain Loss On Auction Rate Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnAuctionRateSecuritiesArisingDuringPeriodNetOfTax	8000000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	-2000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	-2000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	0
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1424000000
CY2012Q4	us-gaap	Short Term Investments ShortTermInvestments	333000000
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1516000000
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	2425000000
CY2011Q4	us-gaap	Assets Current AssetsCurrent	6880000000
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1051000000
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	483000000
CY2012Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	4242000000
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	113856000000
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2444000000
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	745000000
CY2012Q4	us-gaap	Other Notes Payable Current OtherNotesPayableCurrent	312000000
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	372000000
CY2012Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	71000000
CY2012Q4	duk	Restricted Other Assets Of Variable Interest Entities RestrictedOtherAssetsOfVariableInterestEntities	62000000
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2399000000
CY2012Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	23994000000
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	460000000
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2231000000
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	363000000
CY2011Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	9160000000
CY2011Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	62000000
CY2011Q4	duk	Restricted Other Assets Of Variable Interest Entities RestrictedOtherAssetsOfVariableInterestEntities	135000000
CY2011Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	2060000000
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	98833000000
CY2012Q4	duk	Property Plant And Equipment Gross Attributed To Variable Interest Entities PropertyPlantAndEquipmentGrossAttributedToVariableInterestEntities	1558000000
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31969000000
CY2012Q4	duk	Generation Facilities To Be Retired Net GenerationFacilitiesToBeRetiredNet	136000000
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	68558000000
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	42661000000
CY2011Q4	duk	Property Plant And Equipment Gross Attributed To Variable Interest Entities PropertyPlantAndEquipmentGrossAttributedToVariableInterestEntities	913000000
CY2012Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	11004000000
CY2012Q4	duk	Other Regulatory Assets And Deferred Debits OtherRegulatoryAssetsAndDeferredDebits	178000000
CY2012Q4	duk	Total Regulatory Assets And Deferred Debits TotalRegulatoryAssetsAndDeferredDebits	11182000000
CY2012Q4	us-gaap	Assets Assets	113856000000
CY2011Q4	us-gaap	Assets Assets	62526000000
CY2011Q4	duk	Other Regulatory Assets And Deferred Debits OtherRegulatoryAssetsAndDeferredDebits	153000000
CY2012Q4	us-gaap	Goodwill Goodwill	16365000000
CY2011Q4	us-gaap	Goodwill Goodwill	3849000000
CY2012Q4	duk	Restricted Receivables Of Variable Interest Entities RestrictedReceivablesOfVariableInterestEntities	1201000000
CY2011Q4	duk	Restricted Receivables Of Variable Interest Entities RestrictedReceivablesOfVariableInterestEntities	1157000000
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	459000000
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	448000000
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	3110000000
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2511000000
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	10029000000
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	35499000000
CY2012Q4	duk	Non Recourse Long Term Debt Of Variable Interest Entities NonRecourseLongTermDebtOfVariableInterestEntities	852000000
CY2012Q4	duk	Non Current Income Tax Liabilities NonCurrentIncomeTaxLiabilities	10490000000
CY2012Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	458000000
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2520000000
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5169000000
CY2012Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5584000000
CY2012Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	2221000000
CY2012Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	26442000000
CY2012Q4	us-gaap	Minority Interest Amount Represented By Preferred Stock MinorityInterestAmountRepresentedByPreferredStock	93000000
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1000000
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	39279000000
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1889000000
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-306000000
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	40863000000
CY2012Q4	us-gaap	Minority Interest MinorityInterest	78000000
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40941000000
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2652000000
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	44000000
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	62526000000
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	22772000000
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-234000000
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1873000000
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	21132000000
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	1000000
CY2011Q4	us-gaap	Minority Interest Amount Represented By Preferred Stock MinorityInterestAmountRepresentedByPreferredStock	0
CY2011Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	15454000000
CY2011Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	1778000000
CY2011Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2919000000
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1936000000
CY2011Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	856000000
CY2011Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	384000000
CY2011Q4	duk	Non Current Income Tax Liabilities NonCurrentIncomeTaxLiabilities	7581000000
CY2011Q4	duk	Non Recourse Long Term Debt Of Variable Interest Entities NonRecourseLongTermDebtOfVariableInterestEntities	949000000
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	17730000000
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	5528000000
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1091000000
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1894000000
CY2011Q4	us-gaap	Interest Payable Current InterestPayableCurrent	252000000
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	431000000
CY2011Q4	us-gaap	Other Notes Payable Current OtherNotesPayableCurrent	273000000
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	154000000
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1433000000
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2011Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	1588000000
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	704000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	34000000
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2026000000
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	300000000
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	260000000
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-139000000
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-188000000
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5244000000
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3672000000
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5501000000
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4363000000
CY2012	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	6000000
CY2011	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	50000000
CY2012	us-gaap	Acquisition Costs AcquisitionCosts	-451000000
CY2011	us-gaap	Acquisition Costs AcquisitionCosts	-51000000
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	4719000000
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3194000000
CY2012	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	4537000000
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	3063000000
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	212000000
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	118000000
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	414000000
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-22000000
CY2012Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	3223000000
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-74000000
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-21000000
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6197000000
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4434000000
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4170000000
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2570000000
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	23000000
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	67000000
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2498000000
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	278000000
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	278000000
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	208000000
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	25000000
CY2011	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	26000000
CY2010	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	268000000
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1994000000
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	234000000
CY2012	duk	Severance Expense Net Of Payments SeveranceExpenseNetOfPayments	92000000
CY2012	duk	Ferc Mitigation FercMitigation	117000000
CY2012	duk	Community Support And Charitable Contributions Expense CommunitySupportAndCharitableContributionsExpense	92000000
CY2012	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	586000000
CY2011	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	335000000
CY2010	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	738000000
CY2012	duk	Voluntary Opportunity Cost Deferral VoluntaryOpportunityCostDeferral	-101000000
CY2012	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	239000000
CY2011	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	104000000
CY2010	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	117000000
CY2012	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-60000000
CY2011	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	48000000
CY2010	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-15000000
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-39000000
CY2011	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-2000000
CY2010	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-19000000
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	258000000
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	247000000
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-198000000
CY2012	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-140000000
CY2011	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-185000000
CY2010	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-227000000
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	131000000
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	41000000
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	167000000
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-142000000
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	27000000
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	30000000
CY2012	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	295000000
CY2011	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-254000000
CY2010	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	43000000
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	129000000
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12000000
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-157000000
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-240000000
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4511000000
CY2011	duk	Voluntary Opportunity Cost Deferral VoluntaryOpportunityCostDeferral	0
CY2010	duk	Voluntary Opportunity Cost Deferral VoluntaryOpportunityCostDeferral	0
CY2010	duk	Community Support And Charitable Contributions Expense CommunitySupportAndCharitableContributionsExpense	0
CY2011	duk	Ferc Mitigation FercMitigation	0
CY2010	duk	Ferc Mitigation FercMitigation	0
CY2011	duk	Community Support And Charitable Contributions Expense CommunitySupportAndCharitableContributionsExpense	0
CY2011	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0
CY2010	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2166000000
CY2010	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	2261000000
CY2011	duk	Severance Expense Net Of Payments SeveranceExpenseNetOfPayments	0
CY2010	us-gaap	Acquisition Costs AcquisitionCosts	0
CY2010	duk	Severance Expense Net Of Payments SeveranceExpenseNetOfPayments	0
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4803000000
CY2010	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	52000000
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	406000000
CY2010	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	75000000
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-6000000
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4423000000
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2738000000
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	302000000
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1647000000
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-55000000
CY2010	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	10000000
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	76000000
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0
CY2010	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	1752000000
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	1329000000
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	-1284000000
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5000000
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-10000000
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4000000
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	40000000
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	128000000
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1542000000
CY2012	us-gaap	Interest Paid Net InterestPaidNet	1032000000
CY2011	us-gaap	Interest Paid Net InterestPaidNet	813000000
CY2010	us-gaap	Interest Paid Net InterestPaidNet	795000000
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	72000000
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	26000000
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	64000000
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	48944000000
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	30873000000
CY2012	us-gaap	Stock Issued1 StockIssued1	18071000000
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	684000000
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	409000000
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	361000000
CY2012	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	66000000
CY2012	us-gaap	Pension Contributions PensionContributions	-304000000
CY2011	us-gaap	Pension Contributions PensionContributions	-200000000
CY2010	us-gaap	Pension Contributions PensionContributions	-400000000
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	584000000
CY2011	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	602000000
CY2010	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	741000000
CY2010	duk	Debt Associated With Consolidation Of Variable Interest Entities DebtAssociatedWithConsolidationOfVariableInterestEntities	342000000
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21886000000
CY2010	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	7000000	shares
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	362000000
CY2010	us-gaap	Dividends Cash DividendsCash	1284000000
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	22653000000
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	109000000
CY2011	us-gaap	Dividends Cash DividendsCash	1329000000
CY2009Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	436000000	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	443000000	shares
CY2011	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	2000000	shares
CY2012	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1000000	shares
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	76000000
CY2012	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	258000000	shares
CY2012	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	18071000000
CY2012	us-gaap	Dividends Cash DividendsCash	1752000000
CY2012	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	82000000
CY2012	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	76000000
CY2010	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-7000000
CY2011	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-39000000
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-23000000
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-26000000
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-10000000
CY2012	us-gaap	Minority Interest In Net Income Loss Preferred Unit Holders MinorityInterestInNetIncomeLossPreferredUnitHolders	-2000000
CY2012	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-17000000
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1780000000
CY2012	us-gaap	Nature Of Operations NatureOfOperations	<p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0px;">Nature of Operations and Basis of Consolidation.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Duke Energy Corporation (collectively with its subsidiaries, Duke Energy), is an energy company headquartered in Charlotte, North Carolina. Duke Energy operates in the United States (U.S.) </font><font style="font-family:Arial;font-size:8pt;">and Latin America </font><font style="font-family:Arial;font-size:8pt;">primarily through its direct and indirect subsidiaries</font><font style="font-family:Arial;font-size:8pt;">. Duke Energy's subsidiaries include</font><font style="font-family:Arial;font-size:8pt;">d</font><font style="font-family:Arial;font-size:8pt;"> Duke Energy Carolinas, LLC (Duke Energy Carolinas), Duke Energy Ohio, Inc. (Duke Energy Ohio), which includes Duke Energy Kentucky, Inc. (Duke Energy Kentucky), and Duke Energy Indiana, Inc. (Duke Energy Indiana</font><font style="font-family:Arial;font-size:8pt;">) prior to the merger with Progress Energy, Inc. (Progress Energy)</font><font style="font-family:Arial;font-size:8pt;">.</font><font style="font-family:Arial;font-size:8pt;"> On July 2, 2012, Duke Energy merged with Progress Energy, with Duke Energy continuing as the surviving corporation, and Progress Energy becoming a subsidiary of Duke Energy.</font><font style="font-family:Arial;font-size:8pt;"> Carolina Power & Light </font><font style="font-family:Arial;font-size:8pt;">Company </font><font style="font-family:Arial;font-size:8pt;">d/b/a Progress Energy Carolinas</font><font style="font-family:Arial;font-size:8pt;">, Inc.</font><font style="font-family:Arial;font-size:8pt;"> (Progress Energy Carolinas) and </font><font style="font-family:Arial;font-size:8pt;">Florida Power Corporation d/b/a Progress Energy Florida</font><font style="font-family:Arial;font-size:8pt;">, Inc.</font><font style="font-family:Arial;font-size:8pt;"> (Progress Energy Florida), Progress Energy's regulated utility subsidiaries, are now indirect subsidiaries of Duke Energy. </font><font style="font-family:Arial;font-size:8pt;">Duke Energy's consolidated financial statements include Progress Energy, Progress Energy Carolinas and Progress Energy Florida activity </font><font style="font-family:Arial;font-size:8pt;">beginning</font><font style="font-family:Arial;font-size:8pt;"> July 2, 2012. See Note 2 for additional information regarding the merger. </font><font style="font-family:Arial;font-size:8pt;">When discussing Duke Energy's consolidated financial information, it necessarily i</font><font style="font-family:Arial;font-size:8pt;">ncludes the results of its six</font><font style="font-family:Arial;font-size:8pt;"> separate subsidiary registrants, Duke Energy Carolinas, </font><font style="font-family:Arial;font-size:8pt;">Progress Energy, Progress Energy Carolinas, Progress Energy Florida, </font><font style="font-family:Arial;font-size:8pt;">Duke Energy Ohio and Duke Energy Indiana (collectively referred to as the Subsidiary Registrants), which, along with Duke Energy, are collectively referred to as the Duke Energy Registrants. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Progress Energy, Progress Energy Carolinas and Progress Energy Florida (collectively referred to as the Progress Energy Registrants) continue to maintain reporting requirements as SEC registrants. In accordance with SEC guidance, the Progress Energy Registrants did not reflect the impacts of acquisition accounting</font><font style="font-family:Arial;font-size:8pt;"> from the merger with Duke Energy</font><font style="font-family:Arial;font-size:8pt;">, whereby the adjustments of assets and liabilities to fair value and the resultant goodwill would be shown on the financial statements of the Progress Energy Registrants. These adjustments were recorded by Duke Energy.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">The information in these combined notes relates to each of the Duke Energy Registrants as noted in the Index to the Combined Notes. However, none of the registrants makes any representation as to information related solely to Duke Energy or the subsidiaries of Duke Energy other than itself. As discussed further in Note </font><font style="font-family:Arial;font-size:8pt;">3</font><font style="font-family:Arial;font-size:8pt;">, Duke Energy operates three reportable business segments: U.S. Franchised Electric and Gas</font><font style="font-family:Arial;font-size:8pt;"> (USFE&G)</font><font style="font-family:Arial;font-size:8pt;">, Commercial Power and International Energy. </font><font style="font-family:Arial;font-size:8pt;">The remainder of Duke Energy's operations is presented as </font><font style="font-family:Arial;font-size:8pt;">Other</font><font style="font-family:Arial;font-size:8pt;">.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">These Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the accounts of the Duke Energy Registrants and all majority-owned subsidiaries where the respective Duke Energy Registrants have control and those variable interest entities (VIEs) where the respective Duke Energy Registrants are the primary beneficiary. </font><font style="font-family:Arial;font-size:8pt;">These Consolidated Financial Statements also reflect the Duke Energy Registrants' proportionate share of certain generation and transmission facilities. In January 2012, Duke Energy Ohio completed the sale of its 75% ownership of the Vermillion Generating Station (Vermillion); upon the close, Duke Energy Indiana purchased a 62.5% interest in the station. See Note 2 for further discussion.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Duke Energy Carolinas</font><font style="font-family:Arial;font-size:8pt;">, a </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy,</font><font style="font-family:Arial;font-size:8pt;"> is an electric utility company that generates, transmits, distributes and sells electricity in No</font><font style="font-family:Arial;font-size:8pt;">rth Carolina and South Carolina</font><font style="font-family:Arial;font-size:8pt;">. Duke Energy Carolinas is subject to the regulatory provisions of the North Carolina Utilities Commission (NCUC), the Public Service Commission of South Carolina (PSCSC), the U.S. Nuclear Regulatory Commission (NRC) and the Federal Energy Regulatory Commission (FERC). Substantially all of Duke Energy Carolinas' operations are regulated and qualify for regulatory accounting treatment. As discussed further in Note </font><font style="font-family:Arial;font-size:8pt;">3</font><font style="font-family:Arial;font-size:8pt;">, Duke Energy Carolinas' operations include one reportable business segment, Franchised Electric. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Progress Energy</font><font style="font-family:Arial;font-size:8pt;">, a </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy,</font><font style="font-family:Arial;font-size:8pt;"> is a holding company headquartered in Raleigh, North Carolina, subject to regulation by the FERC. Progress Energy conducts operations through its wholly owned subsidiaries</font><font style="font-family:Arial;font-size:8pt;">,</font><font style="font-family:Arial;font-size:8pt;"> Progress Energy Carolinas and Progress Energy Florida. </font><font style="font-family:Arial;font-size:8pt;">As discussed further in Note 3</font><font style="font-family:Arial;font-size:8pt;">,</font><font style="font-family:Arial;font-size:8pt;"> </font><font style="font-family:Arial;font-size:8pt;">Progress Energy's operations include one reportable segment, Franchised Electric. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Progress Energy Carolinas</font><font style="font-family:Arial;font-size:8pt;">, an indirect </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy,</font><font style="font-family:Arial;font-size:8pt;"> is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North Carolina and South Carolina. Progress Energy Carolinas is subject to the regulatory provisions of the NCUC, the PSCSC, the NRC and the FERC. Substantially all of Progress Energy Carolinas' operations are regulated and qualify for </font><font style="font-family:Arial;font-size:8pt;">regulatory accounting treatment. As discussed further in Note 3</font><font style="font-family:Arial;font-size:8pt;">, Progress Energy Carolinas' operations include one reportable segment, Franchised Electric.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Progress Energy Florida</font><font style="font-family:Arial;font-size:8pt;">, an indirect </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy,</font><font style="font-family:Arial;font-size:8pt;"> is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in west central Florida. Progress Energy Florida is subject to the regulatory jurisdiction of the Florida Public Service Commission (FPSC), the NRC and the FERC. Substantially all of Progress Energy Florida's operations are regulated and qualify for regulatory accounting treatment.</font><font style="font-family:Arial;font-size:8pt;"> As discussed further in Note 3</font><font style="font-family:Arial;font-size:8pt;">, Progress Energy Florida's operations include one reportable segment, Franchised Electric.</font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Duke Energy Ohio,</font><font style="font-family:Arial;font-size:8pt;"> an indirect </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy</font><font style="font-family:Arial;font-size:8pt;">,</font><font style="font-family:Arial;font-size:8pt;"> is a combination electric and gas public utility that provides service in the southwestern portion of Ohio and in northern Kentucky through its </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary</font><font style="font-family:Arial;font-size:8pt;">,</font><font style="font-family:Arial;font-size:8pt;"> Duke Energy Kentucky, as well as electric generat</font><font style="font-family:Arial;font-size:8pt;">ion in parts of Ohio, Illinois </font><font style="font-family:Arial;font-size:8pt;">and Pennsylvania. Duke Energy Ohio's principal lines of business include generation, transmission and distribution of electricity, the sale of and/or transportation of natural gas, and energy marketing. </font><font style="font-family:Arial;font-size:8pt;">Duke Energy Ohio conducts competitive auctions for retail electricity supply in Ohio whereby the energy price is recovered from retail customers. </font><font style="font-family:Arial;font-size:8pt;">Duke Energy Kentucky's principal lines of business include generation, transmission and distribution of electricity, as well as the sale of and/or transportation of natural gas. References herein to Duke Energy Ohio include Duke Energy Ohio and its subsidiaries</font><font style="font-family:Arial;font-size:8pt;">, unless otherwise noted</font><font style="font-family:Arial;font-size:8pt;">. Duke Energy Ohio is subject to the regulatory provisions of the Public Utilities Commission of Ohio (PUCO), the Kentucky Public Service Commission (KPSC) and the FERC. Duke Energy Ohio applies regulatory accounting treatment to substantially all of the operations in its Franchised Electric and Gas operating segment. Through November 2011, Duke Energy Ohio applied regulatory accounting treatment to certain rate riders associated with retail generation of its Commercial Power operating segment. See Note </font><font style="font-family:Arial;font-size:8pt;">3</font><font style="font-family:Arial;font-size:8pt;"> for </font><font style="font-family:Arial;font-size:8pt;">further </font><font style="font-family:Arial;font-size:8pt;">information about </font><font style="font-family:Arial;font-size:8pt;">Duke Energy Ohio's </font><font style="font-family:Arial;font-size:8pt;">business segments. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Duke Energy Indiana, </font><font style="font-family:Arial;font-size:8pt;">an indirect </font><font style="font-family:Arial;font-size:8pt;">wholly owned</font><font style="font-family:Arial;font-size:8pt;"> subsidiary of Duke Energy</font><font style="font-family:Arial;font-size:8pt;">,</font><font style="font-family:Arial;font-size:8pt;"> is an electric utility that provides service in north central, central, and southern Indiana. Its primary line of business is generation, transmission and distribution of electricity. Duke Energy Indiana is subject to the regulatory provisions of the Indiana Utility Regulatory Commission (IURC) and the FERC. </font><font style="font-family:Arial;font-size:8pt;">Substantially all</font><font style="font-family:Arial;font-size:8pt;"> of Duke Energy Indiana's operations are regulated and qualify for regulatory accounting treatment. As discussed further in Note </font><font style="font-family:Arial;font-size:8pt;">3</font><font style="font-family:Arial;font-size:8pt;">, Duke Energy Indiana's operations include one reportable business segment, Franchised Electric</font><font style="font-family:Arial;font-size:8pt;">.</font><font style="font-family:Arial;font-size:8pt;"> </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Certain prior year amounts have been reclassified to conform to current year presentation. In addition, prior year financial statements and footnote disclosures for </font><font style="font-family:Arial;font-size:8pt;">the Progress Energy Registrants </font><font style="font-family:Arial;font-size:8pt;">have been reclassified to conform to Duke Energy's presenta</font><font style="font-family:Arial;font-size:8pt;">tion</font><font style="font-family:Arial;font-size:8pt;">.</font></p>
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0px;">Use of Estimates.</font><font style="font-family:Arial;font-size:8pt;font-weight:bold;"> </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">To conform to generally accepted accounting principles (GAAP) in the U.S., management makes estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and Notes. Although these estimates are based on management's best available information at the time, actual results could differ.</font></p>
CY2011Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	674000000
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1732000000
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	36000000
CY2012Q3	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio StockholdersEquityNoteStockSplitConversionRatio	0.333	pure
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	574000000
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	104000000
CY2012Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	1751000000
CY2012Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	1468000000
CY2012Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	4000000
CY2011Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	873000000
CY2011Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	712000000
CY2011Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	3000000
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1705000000
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1000000
CY2012	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029	pure
CY2011	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.032	pure
CY2010	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.032	pure
CY2010	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1317000000
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	3000000
CY2011	us-gaap	Excise Taxes Collected ExciseTaxesCollected	293000000
CY2012Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	920000000
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	34000000
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	34000000
CY2012	us-gaap	Excise Taxes Collected ExciseTaxesCollected	466000000
CY2012	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0px;">Guarantees.</font><font style="font-family:Arial;font-size:8pt;font-weight:bold;"> </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">Upon issuance or modification of a guarantee, </font><font style="font-family:Arial;font-size:8pt;">the </font><font style="font-family:Arial;font-size:8pt;">Duke Energy </font><font style="font-family:Arial;font-size:8pt;">Registrants</font><font style="font-family:Arial;font-size:8pt;"> recognize</font><font style="font-family:Arial;font-size:8pt;"> a liability at the time of issuance or material modification for the estimated fair value of the obligation it assumes under that guarantee, if any. Fair value is estimated using a probability-weighted approach. </font><font style="font-family:Arial;font-size:8pt;">The </font><font style="font-family:Arial;font-size:8pt;">Duke Energy </font><font style="font-family:Arial;font-size:8pt;">Registrants</font><font style="font-family:Arial;font-size:8pt;"> reduce</font><font style="font-family:Arial;font-size:8pt;"> the obligation over the term of the guarantee or related contract in a systematic and rational method as risk is reduced under the obligation. Any additional contingent loss for guarantee contracts subsequent to the initial recognition of a liability in accordance with applicable accounting guidance is accounted for and recognized at the time a loss is probable and the amount of the loss can be reasonably estimated. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">The </font><font style="font-family:Arial;font-size:8pt;">Duke Energy </font><font style="font-family:Arial;font-size:8pt;">Registrants</font><font style="font-family:Arial;font-size:8pt;"> have</font><font style="font-family:Arial;font-size:8pt;"> entered into various indemnification agreements related to purchase and sale agreements and other types of contractual agreements with vendors and other third parties. These agreements typically cover environmental, tax, litigation and other matters, as well as breaches of representations, warranties and covenants. Typically, claims may be made by third parties for various periods of time, depending on the </font><font style="font-family:Arial;font-size:8pt;">nat</font><font style="font-family:Arial;font-size:8pt;">ure of the claim. P</font><font style="font-family:Arial;font-size:8pt;">otential exposure under these indemnification agreements can range from a specified to an unlimited dollar amount, depending on the nature of the claim and the particular transaction. </font></p><p style='margin-top:5pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:8pt;margin-left:22.5px;">See Note </font><font style="font-family:Arial;font-size:8pt;">7</font><font style="font-family:Arial;font-size:8pt;"> for further information.</font></p>
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	725000000
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	407000000
CY2010	us-gaap	Excise Taxes Collected ExciseTaxesCollected	300000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssets	3204000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Liabilities BusinessAcquisitionPurchasePriceAllocationCurrentLiabilities	3581000000
CY2012	duk	Settlement Agreement Customer Guaranteed Savings SettlementAgreementCustomerGuaranteedSavings	687000000
CY2012	duk	Interim Ferc Mitigation Rate Reduction InterimFercMitigationRateReduction	65000000
CY2012	duk	Community Support And Charitable Contributions And Other Expenses CommunitySupportAndCharitableContributionsAndOtherExpenses	169000000
CY2012Q3	duk	Closing Share Price ClosingSharePrice	69.84
CY2012Q3	duk	Business Acquisition Equity Interest Common Shares Value Assigned BusinessAcquisitionEquityInterestCommonSharesValueAssigned	18009000000
CY2012Q3	duk	Business Acquisition Equity Interests Compensation Stock Awards Value Assigned BusinessAcquisitionEquityInterestsCompensationStockAwardsValueAssigned	62000000
CY2012Q3	us-gaap	Business Acquisition Equity Interest Issued Or Issuable Value Assigned BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned	18071000000
CY2012Q3	us-gaap	Business Acquisition Equity Interests Issued Or Issuable Number Of Shares Issued BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued	257867000	shares
CY2012Q3	duk	Exchange Ratio Adjusted For Reverse Stock Split ExchangeRatioAdjustedForReverseStockSplit	0.87083	pure
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	18071000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired BusinessAcquisitionPurchasePriceAllocationAssetsAcquired	48944000000
CY2012	duk	Public Utilities Property Plant And Equipment Accumulated Amortization On Capitalized Leases PublicUtilitiesPropertyPlantAndEquipmentAccumulatedAmortizationOnCapitalizedLeases	34000000
CY2011Q4	us-gaap	Public Utilities Property Plant And Equipment Land PublicUtilitiesPropertyPlantAndEquipmentLand	745000000
CY2011Q4	us-gaap	Public Utilities Property Plant And Equipment Fuel PublicUtilitiesPropertyPlantAndEquipmentFuel	1213000000
CY2011Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	863000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	12467000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	30873000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Assets BusinessAcquisitionPurchasePriceAllocationNoncurrentAssets	9994000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Liabilities Long Term Debt BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebt	16746000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Other Noncurrent Liabilities BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentLiabilities	10546000000
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	23279000000
CY2012	duk	Business Acquisition After Tax Cost Of Acquired Entity Transaction Costs BusinessAcquisitionAfterTaxCostOfAcquiredEntityTransactionCosts	413000000
CY2011	duk	Business Acquisition After Tax Cost Of Acquired Entity Transaction Costs BusinessAcquisitionAfterTaxCostOfAcquiredEntityTransactionCosts	85000000
CY2012	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	23976000000
CY2011	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	23445000000
CY2011	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	2397000000
CY2012	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	2417000000
CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	3.43
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	3.41
CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	3.43
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	3.41
CY2010	us-gaap	Proceeds From Sale Of Other Assets ProceedsFromSaleOfOtherAssets	160000000
CY2011	us-gaap	Proceeds From Sale Of Other Assets ProceedsFromSaleOfOtherAssets	12000000
CY2012	us-gaap	Proceeds From Sale Of Other Assets ProceedsFromSaleOfOtherAssets	187000000
CY2012	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	19624000000
CY2012	duk	Segment Income SegmentIncome	1732000000
CY2012	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	5958000000
CY2011	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	14529000000
CY2011	duk	Segment Income SegmentIncome	1705000000
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	4464000000
CY2010	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	14272000000
CY2010	duk	Segment Income SegmentIncome	1317000000
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	4855000000
CY2010Q4	us-gaap	Assets Assets	59090000000
CY2012Q4	us-gaap	Noncurrent Assets NoncurrentAssets	81611000000
CY2011Q4	us-gaap	Noncurrent Assets NoncurrentAssets	48532000000
CY2010Q4	us-gaap	Noncurrent Assets NoncurrentAssets	45487000000
CY2012Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	75000000
CY2012Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	737000000
CY2012Q4	us-gaap	Regulatory Assets RegulatoryAssets	11741000000
CY2012Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	156000000
CY2012Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	5740000000
CY2011Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	374000000
CY2011Q4	us-gaap	Regulatory Assets RegulatoryAssets	4046000000
CY2011Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	87000000
CY2011Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	3006000000
CY2012Q4	us-gaap	Amount Of Restricted Net Assets For Consolidated And Unconsolidated Subsidiaries AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries	10300000000
CY2012	duk	Coal Fired Generation Capacity Potential Plants To Be Retired In Megawatts CoalFiredGenerationCapacityPotentialPlantsToBeRetiredInMegawatts	3954
CY2012Q4	duk	Remaining Net Book Value Of Generating Facilities To Be Retired RemainingNetBookValueOfGeneratingFacilitiesToBeRetired	428000000
CY2012Q4	duk	Insurance Public Liability Limit InsurancePublicLiabilityLimit	12600000000
CY2012Q4	duk	Excess Nuclear Liability Coverage ExcessNuclearLiabilityCoverage	12200000000
CY2012Q4	duk	Insurance Public Liability In Excess Of Insurance InsurancePublicLiabilityInExcessOfInsurance	117500000
CY2012Q4	duk	Insurance Public Liability In Excess Of Insurance Annual Payment Limit InsurancePublicLiabilityInExcessOfInsuranceAnnualPaymentLimit	17500000
CY2012Q4	duk	Insurance Industry Aggregate Limit InsuranceIndustryAggregateLimit	3200000000
CY2012Q4	duk	Nuclear Electric Insurance Limited Sublimit Nonnuclear Terrorist Events NuclearElectricInsuranceLimitedSublimitNonnuclearTerroristEvents	1830000000
CY2012Q4	duk	Nuclear Electric Insurance Limited Sublimit Property Damage Losses NuclearElectricInsuranceLimitedSublimitPropertyDamageLosses	1500000000
CY2012Q4	duk	Nuclear Electric Insurance Limited Sublimit Accidental Outage Recovery NuclearElectricInsuranceLimitedSublimitAccidentalOutageRecovery	328000000
CY2009Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	65000000
CY2010	duk	Amount Accrued During Period For Environmental Loss Contingencies AmountAccruedDuringPeriodForEnvironmentalLossContingencies	37000000
CY2010	us-gaap	Accrual For Environmental Loss Contingencies Payments AccrualForEnvironmentalLossContingenciesPayments	14000000
CY2010Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	88000000
CY2011	duk	Amount Accrued During Period For Environmental Loss Contingencies AmountAccruedDuringPeriodForEnvironmentalLossContingencies	6000000
CY2011	us-gaap	Accrual For Environmental Loss Contingencies Payments AccrualForEnvironmentalLossContingenciesPayments	33000000
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	61000000
CY2012	duk	Amount Accrued During Period For Environmental Loss Contingencies AmountAccruedDuringPeriodForEnvironmentalLossContingencies	39000000
CY2012	us-gaap	Accrual For Environmental Loss Contingencies Payments AccrualForEnvironmentalLossContingenciesPayments	25000000
CY2012	duk	Loss Exposures In Excess Of Accrual High Estimate LossExposuresInExcessOfAccrualHighEstimate	92000000
CY2012Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	846000000
CY2011Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	810000000
CY2012Q4	us-gaap	Loss Contingency Related Receivable Carrying Value LossContingencyRelatedReceivableCarryingValue	-781000000
CY2011Q4	us-gaap	Loss Contingency Related Receivable Carrying Value LossContingencyRelatedReceivableCarryingValue	-813000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	68000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	19000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	5000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	3000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	2000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	18000000
CY2012Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	115000000
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	232000000
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	104000000
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	122000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	171000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	156000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	139000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	127000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	108000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	981000000
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1682000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	210000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	180000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	181000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	183000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	180000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	1779000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	2713000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	1024000000
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	1689000000
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	12722000000
CY2012Q4	us-gaap	Secured Debt SecuredDebt	1873000000
CY2012Q4	duk	First Mortgage Bonds FirstMortgageBonds	17856000000
CY2012Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	1689000000
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	8000000
CY2012Q4	duk	Notes Payable And Commercial Paper NotesPayableAndCommercialPaper	1195000000
CY2012Q4	duk	Fair Value Hedge Carrying Value Adjustment FairValueHedgeCarryingValueAdjustment	12000000
CY2012Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-2185000000
CY2012Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	40518000000
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	36351000000
CY2012Q4	duk	Tax Exempt Bonds TaxExemptBonds	2357000000
CY2012Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	309000000
CY2011Q4	us-gaap	Unsecured Debt UnsecuredDebt	8961000000
CY2011Q4	us-gaap	Secured Debt SecuredDebt	1118000000
CY2011Q4	duk	First Mortgage Bonds FirstMortgageBonds	8182000000
CY2011Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	306000000
CY2011Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	82000000
CY2011Q4	duk	Notes Payable And Commercial Paper NotesPayableAndCommercialPaper	604000000
CY2011Q4	duk	Fair Value Hedge Carrying Value Adjustment FairValueHedgeCarryingValueAdjustment	19000000
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-60000000
CY2011Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	21000000000
CY2011Q4	duk	Tax Exempt Bonds TaxExemptBonds	1515000000
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	18679000000
CY2012	duk	Investment Balance InvestmentBalance	64000000
CY2012	duk	Investment Balance Debt Obligations InvestmentBalanceDebtObligations	64000000
CY2012	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	395000000
CY2011	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	79000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	3098000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2196000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2478000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2184000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1321000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	25873000000
CY2012Q4	duk	Long Term Debt Excluding Purchase Accounting Adjustments LongTermDebtExcludingPurchaseAccountingAdjustments	37150000000
CY2012Q4	duk	Short Term Borrowings Classified As Long Term Debt ShortTermBorrowingsClassifiedAsLongTermDebt	1421000000
CY2011Q4	duk	Short Term Borrowings Classified As Long Term Debt ShortTermBorrowingsClassifiedAsLongTermDebt	1241000000
CY2012Q4	us-gaap	Ratio Of Indebtedness To Net Capital1 RatioOfIndebtednessToNetCapital1	65	pure
CY2012Q4	us-gaap	Other Loans Payable OtherLoansPayable	496000000
CY2011Q4	us-gaap	Other Loans Payable OtherLoansPayable	457000000
CY2012Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	41000000
CY2011Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	19000000
CY2012	us-gaap	Guarantee Obligations Unlimited Exposure GuaranteeObligationsUnlimitedExposure	Duke Energy is unable to estimate the total potential amount of future payments under these indemnification agreements due to several factors, such as the unlimited exposure under certain guarantees.
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1936000000
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	173000000
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	-15000000
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-4000000
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	24000000
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5176000000
CY2012	duk	Asset Retirement Obligations Acquired From Acquisition Of Business AssetRetirementObligationsAcquiredFromAcquisitionOfBusiness	3062000000
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1816000000
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	111000000
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	-3000000
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	1000000
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	11000000
CY2012Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	3941000000
CY2011Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	1797000000
CY2012Q4	us-gaap	Public Utilities Property Plant And Equipment Land PublicUtilitiesPropertyPlantAndEquipmentLand	1368000000
CY2012Q4	us-gaap	Public Utilities Property Plant And Equipment Fuel PublicUtilitiesPropertyPlantAndEquipmentFuel	2127000000
CY2012Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	1448000000
CY2012Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	6655000000
CY2012Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	3272000000
CY2012	duk	Public Utilities Property Plant And Equipment Capitalized Leases PublicUtilitiesPropertyPlantAndEquipmentCapitalizedLeases	1844000000
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	28000000
CY2011Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	7664000000
CY2011	duk	Public Utilities Property Plant And Equipment Capitalized Leases PublicUtilitiesPropertyPlantAndEquipmentCapitalizedLeases	444000000
CY2011	duk	Public Utilities Property Plant And Equipment Accumulated Amortization On Capitalized Leases PublicUtilitiesPropertyPlantAndEquipmentAccumulatedAmortizationOnCapitalizedLeases	28000000
CY2011Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	2476000000
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	177000000
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	166000000
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	167000000
CY2012	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	50000000
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5000000
CY2012	duk	Deferred Returns DeferredReturns	24000000
CY2011	duk	Deferred Returns DeferredReturns	10000000
CY2011	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	51000000
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2000000
CY2011	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	53000000
CY2010	duk	Deferred Returns DeferredReturns	15000000
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1000000
CY2010	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	67000000
CY2010	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	53000000
CY2011Q4	us-gaap	Goodwill Gross GoodwillGross	4720000000
CY2011Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	871000000
CY2012	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	-10000000
CY2012Q4	us-gaap	Goodwill Gross GoodwillGross	17236000000
CY2012Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	871000000
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	12526000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	372000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	595000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-223000000
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	363000000
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	570000000
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	-207000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	45000000
CY2012	duk	Sales And Consumption Of Emission Allowances SalesAndConsumptionOfEmissionAllowances	-15000000
CY2012Q4	duk	Amounts Acquired In Progress Merger AmountsAcquiredInProgressMerger	29000000
CY2011	duk	Purchases Of Emission Allowances PurchasesOfEmissionAllowances	4000000
CY2011	duk	Sales And Consumption Of Emission Allowances SalesAndConsumptionOfEmissionAllowances	-39000000
CY2011	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	-79000000
CY2011	duk	Other Changes To Emission Allowances OtherChangesToEmissionAllowances	5000000
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14000000
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10000000
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	24000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	19000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	17000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	16000000
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	15000000
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	6000000
CY2010	us-gaap	Impairment Of Investments ImpairmentOfInvestments	11000000
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	483000000
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	460000000
CY2012	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	148000000
CY2011	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	160000000
CY2010	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	116000000
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	183000000
CY2010	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	111000000
CY2011	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	149000000
CY2010	duk	Cash Proceeds From Exercise Of Cash Settlement Option CashProceedsFromExerciseOfCashSettlementOption	184000000
CY2012Q4	us-gaap	Notional Amount Of Interest Rate Cash Flow Hedge Derivatives NotionalAmountOfInterestRateCashFlowHedgeDerivatives	1047000000
CY2012Q4	us-gaap	Notional Amount Of Interest Rate Derivative Instruments Not Designated As Hedging Instruments NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments	290000000
CY2012Q4	us-gaap	Notional Amount Of Interest Rate Fair Value Hedge Derivatives NotionalAmountOfInterestRateFairValueHedgeDerivatives	250000000
CY2012Q4	us-gaap	Notional Amount Of Interest Rate Derivatives NotionalAmountOfInterestRateDerivatives	1587000000
CY2011Q4	us-gaap	Notional Amount Of Interest Rate Cash Flow Hedge Derivatives NotionalAmountOfInterestRateCashFlowHedgeDerivatives	841000000
CY2011Q4	us-gaap	Notional Amount Of Interest Rate Derivative Instruments Not Designated As Hedging Instruments NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments	247000000
CY2011Q4	us-gaap	Notional Amount Of Interest Rate Fair Value Hedge Derivatives NotionalAmountOfInterestRateFairValueHedgeDerivatives	275000000
CY2011Q4	us-gaap	Notional Amount Of Interest Rate Derivatives NotionalAmountOfInterestRateDerivatives	1363000000
CY2010	us-gaap	Severance Costs SeveranceCosts	172000000
CY2012Q4	duk	Cobraand Healthcare Expense Reimbursement CobraandHealthcareExpenseReimbursement	19000000
CY2012Q4	duk	Accelerated Stock Compensation Expense AcceleratedStockCompensationExpense	14000000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	340000	shares
CY2012	duk	Electricity Energy Gigawatt Hours ElectricityEnergyGigawattHours	52104
CY2012	duk	Oil Millions Of Gallons OilMillionsOfGallons	5000000
CY2012	duk	Natural Gas Decatherms NaturalGasDecatherms	528000000
CY2011	duk	Electricity Energy Gigawatt Hours ElectricityEnergyGigawattHours	14118
CY2011	duk	Emission Allowances Nox Tons EmissionAllowancesNoxTons	9000
CY2011	duk	Natural Gas Decatherms NaturalGasDecatherms	40000000
CY2012	duk	Electricity Capacity Gigawatt Months ElectricityCapacityGigawattMonths	5
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	264000000
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	283000000
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	473000000
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	917000000
CY2012	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	-22000000
CY2011	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	-88000000
CY2010	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	2000000
CY2010	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Interest Expense Net CashFlowHedgeGainLossReclassifiedToInterestExpenseNet	-3000000
CY2011	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Interest Expense Net CashFlowHedgeGainLossReclassifiedToInterestExpenseNet	-5000000
CY2012	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Interest Expense Net CashFlowHedgeGainLossReclassifiedToInterestExpenseNet	2000000
CY2011Q4	duk	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pre Tax Accumulated Other Comprehensive Income Or Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPreTaxAccumulatedOtherComprehensiveIncomeOrLoss	115000000
CY2012Q4	duk	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pre Tax Accumulated Other Comprehensive Income Or Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPreTaxAccumulatedOtherComprehensiveIncomeOrLoss	151000000
CY2012	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	5000000
CY2010	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-28000000
CY2011	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-60000000
CY2012	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-187000000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-289000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1654000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	953000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	701000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	46
CY2011Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	5000000
CY2012	duk	Derivative Instruments Gain Loss Recognized As Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedAsRegulatoryAssetLiability	44000000
CY2011	duk	Derivative Instruments Gain Loss Recognized As Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedAsRegulatoryAssetLiability	-209000000
CY2010	duk	Derivative Instruments Gain Loss Recognized As Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedAsRegulatoryAssetLiability	78000000
CY2011Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	96000000
CY2011Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	36000000
CY2012Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	466000000
CY2012Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	163000000
CY2012Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	230000000
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	73000000
CY2012Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	93000000
CY2011Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	30000000
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	10000000
CY2012Q4	us-gaap	Auction Rate Securities Noncurrent AuctionRateSecuritiesNoncurrent	29000000
CY2012Q4	duk	Nuclear Decommissioning Trust Fund Equity Securities NuclearDecommissioningTrustFundEquitySecurities	2837000000
CY2012Q4	duk	Nuclear Decommissioning Trust Fund Debt Securities NuclearDecommissioningTrustFundDebtSecurities	1405000000
CY2012Q4	duk	Other Long Term Trading And Available For Sale Equity Securities Fair Value Disclosure OtherLongTermTradingAndAvailableForSaleEquitySecuritiesFairValueDisclosure	72000000
CY2012Q4	duk	Other Trading And Available For Sale Debt Securities Fair Value Disclosure OtherTradingAndAvailableForSaleDebtSecuritiesFairValueDisclosure	602000000
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	103000000
CY2012Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	5048000000
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	756000000
CY2012Q4	duk	Net Assets Fair Value NetAssetsFairValue	4292000000
CY2011Q4	us-gaap	Auction Rate Securities Noncurrent AuctionRateSecuritiesNoncurrent	71000000
CY2011Q4	duk	Nuclear Decommissioning Trust Fund Equity Securities NuclearDecommissioningTrustFundEquitySecurities	1337000000
CY2011Q4	duk	Nuclear Decommissioning Trust Fund Debt Securities NuclearDecommissioningTrustFundDebtSecurities	723000000
CY2011Q4	duk	Other Long Term Trading And Available For Sale Equity Securities Fair Value Disclosure OtherLongTermTradingAndAvailableForSaleEquitySecuritiesFairValueDisclosure	68000000
CY2011Q4	duk	Other Trading And Available For Sale Debt Securities Fair Value Disclosure OtherTradingAndAvailableForSaleDebtSecuritiesFairValueDisclosure	382000000
CY2011Q4	us-gaap	Derivative Assets DerivativeAssets	74000000
CY2011Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2655000000
CY2011Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	264000000
CY2011Q4	duk	Net Assets Fair Value NetAssetsFairValue	2391000000
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	20573000000
CY2011Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	23053000000
CY2011	duk	Debt Of Variable Interest Entities DebtOfVariableInterestEntities	949000000
CY2012	duk	Debt Of Variable Interest Entities DebtOfVariableInterestEntities	852000000
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	39461000000
CY2012Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	44001000000
CY2011Q4	us-gaap	Trading Securities TradingSecurities	32000000
CY2012Q4	us-gaap	Trading Securities TradingSecurities	33000000
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	30000000
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	4932000000
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	483000000
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	42000000
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	2549000000
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	1216000000
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	312000000
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	403000000
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	392000000
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	774000000
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	484000000
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	12000000
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	18000000
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	584000000
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	25000000
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	17000000
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-580000	shares
CY2012	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2014-08-01
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	3.83
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5000000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000000	shares
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	288000000
CY2012Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	100
CY2012	us-gaap	Severance Costs SeveranceCosts	201000000
CY2012	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	48000000
CY2011	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	32000000
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	63
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	36
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	65
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	58
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	22000000
CY2011Q4	us-gaap	Restructuring Reserve RestructuringReserve	32000000
CY2012	us-gaap	Restructuring Charges RestructuringCharges	171000000
CY2012	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	68000000
CY2012Q4	us-gaap	Restructuring Reserve RestructuringReserve	135000000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	25000000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	6250000	shares
CY2012Q4	duk	Estimated Fair Value Of Stock Based Compensation Awards Allocated To Purchase Price EstimatedFairValueOfStockBasedCompensationAwardsAllocatedToPurchasePrice	62000000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Terms Of Award ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward	10
CY2010	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	41000000
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	78000000
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	30000000
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2000000
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2000000
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	67000000
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	26000000
CY2010	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	4000000
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	52000000
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	20000000
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2089000	shares
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y0M0D
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0110	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0510	pure
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	17000000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	4000000
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Options Assumed Through Merger In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedThroughMergerInPeriod	94000	shares
CY2012	duk	Share Based Compensation Arrangements Byshare Based Payment Award Options Assumed Through Merger In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByshareBasedPaymentAwardOptionsAssumedThroughMergerInPeriodWeightedAverageExercisePrice	50
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y4M0D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P8Y6M0D
CY2012	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P4Y10M0D
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	51
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	45
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1000000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	4000000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	45
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	51
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	17000000
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	7000000
CY2012	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	21000000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	358000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	368000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	26000000
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	10000000
CY2011	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	74000000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	8000000
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	3000000
CY2010	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	14000000
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Historical Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsHistoricalVolatilityRate	0.50	pure
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	20000000
CY2012	duk	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	14000000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.1880	pure
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptionsimplied Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsimpliedVolatilityRate	0.50	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	443000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	636000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	349000	shares
CY2012Q4	duk	Share Based Compensation Grants In Period Fair Value ShareBasedCompensationGrantsInPeriodFairValue	28000000
CY2011Q4	duk	Share Based Compensation Grants In Period Fair Value ShareBasedCompensationGrantsInPeriodFairValue	34000000
CY2010Q4	duk	Share Based Compensation Grants In Period Fair Value ShareBasedCompensationGrantsInPeriodFairValue	17000000
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	856000	shares
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Assumed Through Merger In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedThroughMergerInPeriod	988000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-608000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1607000	shares
CY2012Q4	duk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVest	1567000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	51
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Assumed Through Merger In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedThroughMergerInPeriodWeightedAverageGrantDateFairValue	70
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	63
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	56
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	64
CY2012Q4	duk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestWeightedAverageGrantDateFairValue	64
CY2012	duk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue	-72000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	64
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	34000000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	19000000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	29000000
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	37000000
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y11M0D
CY2012Q4	us-gaap	Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear	350000000
CY2012	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	304000000
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	200000000
CY2010	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	400000000
CY2011Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2020
CY2012Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2020
CY2012	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear	0.0850	pure
CY2012	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.0500	pure
CY2011	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.0500	pure
CY2011	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear	0.0875	pure
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	9000000
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	164000000
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	7000000
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	133000000
CY2012	duk	Defined Contribution Plan Contribution By Employer DefinedContributionPlanContributionByEmployer	107000000
CY2011	duk	Defined Contribution Plan Contribution By Employer DefinedContributionPlanContributionByEmployer	86000000
CY2010	duk	Defined Contribution Plan Contribution By Employer DefinedContributionPlanContributionByEmployer	85000000
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-46000000
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	35000000
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	133000000
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	513000000
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	64000000
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	24000000
CY2012Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	27000000
CY2012	duk	Operating Loss Carryforwards Federal State And Local OperatingLossCarryforwardsFederalStateAndLocal	1127000000
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	597000000
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	122000000
CY2012	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	729000000
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-37000000
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	21000000
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	164000000
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	148000000
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	526000000
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	56000000
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	32000000
CY2011	duk	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	10000000
CY2011Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	43000000
CY2011	duk	Operating Loss Carryforwards Federal State And Local OperatingLossCarryforwardsFederalStateAndLocal	274000000
CY2011	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	752000000
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	614000000
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-5000000
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	39000000
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	125000000
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	159000000
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	639000000
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	83000000
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	20000000
CY2010	duk	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	11000000
CY2010	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-1000000
CY2010Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	-392000000
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	742000000
CY2010	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	889000000
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1827000000
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	624000000
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1780000000
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	685000000
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1731000000
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	479000000
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	858000000
CY2012	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	64000000
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-66000000
CY2012	duk	Income Tax Reconciliation Allowance For Funds Used During Construction Equity Income IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionEquityIncome	-101000000
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-50000000
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.288	pure
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	863000000
CY2011	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	50000000
CY2011	duk	Income Tax Reconciliation Allowance For Funds Used During Construction Equity Income IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionEquityIncome	-91000000
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-26000000
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	774000000
CY2010	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	82000000
CY2010	duk	Income Tax Reconciliation Allowance For Funds Used During Construction Equity Income IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionEquityIncome	-82000000
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.305	pure
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-44000000
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-22000000
CY2010	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	175000000
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-37000000
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.403	pure
CY2012Q4	duk	Deferred Tax Assets Deferred Credits And Other Liabilities DeferredTaxAssetsDeferredCreditsAndOtherLiabilities	2948000000
CY2012Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	3311000000
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	408000000
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	226000000
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	6441000000
CY2012Q4	duk	Deferred Tax Liabilities Investments And Other Assets DeferredTaxLiabilitiesInvestmentsAndOtherAssets	1093000000
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	11208000000
CY2012Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	3819000000
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	16120000000
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-9679000000
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	391000000
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	1033000000
CY2011Q4	duk	Deferred Tax Assets Deferred Credits And Other Liabilities DeferredTaxAssetsDeferredCreditsAndOtherLiabilities	790000000
CY2011Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	930000000
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	137000000
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	144000000
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1713000000
CY2011Q4	duk	Deferred Tax Liabilities Investments And Other Assets DeferredTaxLiabilitiesInvestmentsAndOtherAssets	809000000
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6989000000
CY2011Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	1219000000
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9017000000
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-7304000000
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	732000000
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	85000000
CY2012Q4	us-gaap	Deferred Tax Liabilities Gross Current DeferredTaxLiabilitiesGrossCurrent	-6000000
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	10490000000
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	210000000
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	67000000
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000000
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	7581000000
CY2012Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	2000000000
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	128000000
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	29000000
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4000000
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	28000000
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	13000000
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4000000
CY2012	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	155000000
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	540000000
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	9000000
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	49000000
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	18000000
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	16000000
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-4000000
CY2011	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	43000000
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	385000000
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	664000000
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	36000000
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	43000000
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	320000000
CY2010	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-322000000
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	342000000
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	131000000
CY2012Q4	duk	Unrecognized Tax Benefits That Would Impact Discontinued Operations UnrecognizedTaxBenefitsThatWouldImpactDiscontinuedOperations	11000000
CY2012Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	65000000
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	679000000
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	435000000
CY2012Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	10000000
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	7000000
CY2011Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	12000000
CY2011Q4	duk	Interest Receivable Related To Income Taxes InterestReceivableRelatedToIncomeTaxes	8000000
CY2010Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	26000000
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1078000000
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	786000000
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	495000000
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	295000000
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	444000000
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	594000000
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	767000000
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	472000000
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	814000000
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	511000000
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	767000000
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	406000000
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	435000000
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.57
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.57
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.62
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.62
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.66
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.66
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.99
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.99
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.84
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.84
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	297000000
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	449000000
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	594000000
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	513000000
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	441000000
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	290000000
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	517000000
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	288000000
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.15
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.15
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.98
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.98
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.98
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.65
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.65
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	469000000
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.06
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.06
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.06
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.06
CY2012Q1	us-gaap	Profit Loss ProfitLoss	299000000
CY2012Q2	us-gaap	Profit Loss ProfitLoss	448000000
CY2012Q3	us-gaap	Profit Loss ProfitLoss	598000000
CY2012Q4	us-gaap	Profit Loss ProfitLoss	437000000
CY2011Q1	us-gaap	Profit Loss ProfitLoss	513000000
CY2011Q2	us-gaap	Profit Loss ProfitLoss	441000000
CY2011Q3	us-gaap	Profit Loss ProfitLoss	470000000
CY2011Q4	us-gaap	Profit Loss ProfitLoss	290000000
CY2012Q1	us-gaap	Revenues Revenues	3630000000
CY2012Q2	us-gaap	Revenues Revenues	3577000000
CY2012Q3	us-gaap	Revenues Revenues	6722000000
CY2012Q4	us-gaap	Revenues Revenues	5695000000
CY2011Q2	us-gaap	Revenues Revenues	3534000000
CY2011Q1	us-gaap	Revenues Revenues	3663000000
CY2011Q3	us-gaap	Revenues Revenues	3964000000
CY2011Q4	us-gaap	Revenues Revenues	3368000000
CY2011Q4	us-gaap	Unusual Or Infrequent Item Fourth Quarter UnusualOrInfrequentItemFourthQuarter	59000000
CY2011Q3	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	-301000000
CY2011Q4	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	59000000
CY2012Q1	duk	Voluntary Severance Charge VoluntarySeveranceCharge	101000000
CY2012Q1	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	-327000000
CY2012Q3	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	-637000000
CY2012Q4	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	-192000000
CY2012Q2	us-gaap	Unusual Or Infrequent Item Net Of Insurance Proceeds UnusualOrInfrequentItemNetOfInsuranceProceeds	-7000000
CY2012Q1	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-8000000
CY2012Q2	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-7000000
CY2012Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-457000000
CY2012Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-164000000
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	44000000
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2011Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	3672000000
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3000000
CY2011Q4	us-gaap	Minority Interest MinorityInterest	93000000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-5000000
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2110000000
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	440000000
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	445000000	shares
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-686000000
CY2011Q4	us-gaap	Short Term Investments ShortTermInvestments	190000000
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	22865000000
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares

Files In Submission

Name	View Source	Status
0001326160-13-000009-index-headers.html	Edgar Link	pending
0001326160-13-000009-index.html	Edgar Link	pending
0001326160-13-000009.txt	Edgar Link	pending
0001326160-13-000009-xbrl.zip	Edgar Link	pending
duk-20121231.xml	Edgar Link	completed
duk-20121231.xsd	Edgar Link	pending
duk-20121231_cal.xml	Edgar Link	unprocessable
duk-20121231_def.xml	Edgar Link	unprocessable
duk-20121231_lab.xml	Edgar Link	unprocessable
duk-20121231_pre.xml	Edgar Link	unprocessable
exhibit10.5.1.htm	Edgar Link	pending
exhibit10.5.2.htm	Edgar Link	pending
exhibit10.56.htm	Edgar Link	pending
exhibit10.57.htm	Edgar Link	pending
exhibit10.58.htm	Edgar Link	pending
exhibit10.59.htm	Edgar Link	pending
exhibit10.6.1.htm	Edgar Link	pending
exhibit10.6.2.htm	Edgar Link	pending
exhibit10.6.3.htm	Edgar Link	pending
exhibit10.6.htm	Edgar Link	pending
exhibit10.60.htm	Edgar Link	pending
exhibit10.61.htm	Edgar Link	pending
exhibit10.62.htm	Edgar Link	pending
exhibit10.63.htm	Edgar Link	pending
exhibit10.64.htm	Edgar Link	pending
exhibit10.65.1.htm	Edgar Link	pending
exhibit10.95.1.htm	Edgar Link	pending
exhibit10.96.1.htm	Edgar Link	pending
exhibit12.1.htm	Edgar Link	pending
exhibit12.2.htm	Edgar Link	pending
exhibit12.3.htm	Edgar Link	pending
exhibit12.4.htm	Edgar Link	pending
exhibit12.5.htm	Edgar Link	pending
exhibit12.6.htm	Edgar Link	pending
exhibit12.7.htm	Edgar Link	pending
exhibit21.htm	Edgar Link	pending
exhibit23.1.1.htm	Edgar Link	pending
exhibit23.1.2.htm	Edgar Link	pending
exhibit23.1.3.htm	Edgar Link	pending
exhibit23.1.4.htm	Edgar Link	pending
exhibit23.1.5.htm	Edgar Link	pending
exhibit23.1.6.htm	Edgar Link	pending
exhibit23.1.7.htm	Edgar Link	pending
exhibit24.1.htm	Edgar Link	pending
exhibit24.2.htm	Edgar Link	pending
exhibit31.1.1.htm	Edgar Link	pending
exhibit31.1.2.htm	Edgar Link	pending
exhibit31.1.3.htm	Edgar Link	pending
exhibit31.1.4.htm	Edgar Link	pending
exhibit31.1.5.htm	Edgar Link	pending
exhibit31.1.6.htm	Edgar Link	pending
exhibit31.1.7.htm	Edgar Link	pending
exhibit31.2.1.htm	Edgar Link	pending
exhibit31.2.2.htm	Edgar Link	pending
exhibit31.2.3.htm	Edgar Link	pending
exhibit31.2.4.htm	Edgar Link	pending
exhibit31.2.5.htm	Edgar Link	pending
exhibit31.2.6.htm	Edgar Link	pending
exhibit31.2.7.htm	Edgar Link	pending
exhibit32.1.1.htm	Edgar Link	pending
exhibit32.1.2.htm	Edgar Link	pending
exhibit32.1.3.htm	Edgar Link	pending
exhibit32.1.4.htm	Edgar Link	pending
exhibit32.1.5.htm	Edgar Link	pending
exhibit32.1.6.htm	Edgar Link	pending
exhibit32.1.7.htm	Edgar Link	pending
exhibit32.2.1.htm	Edgar Link	pending
exhibit32.2.2.htm	Edgar Link	pending
exhibit32.2.3.htm	Edgar Link	pending
exhibit32.2.4.htm	Edgar Link	pending
exhibit32.2.5.htm	Edgar Link	pending
exhibit32.2.6.htm	Edgar Link	pending
exhibit32.2.7.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
form10k.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R145.htm	Edgar Link	pending
R146.htm	Edgar Link	pending
R147.htm	Edgar Link	pending
R148.htm	Edgar Link	pending
R149.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R150.htm	Edgar Link	pending
R151.htm	Edgar Link	pending
R152.htm	Edgar Link	pending
R153.htm	Edgar Link	pending
R154.htm	Edgar Link	pending
R155.htm	Edgar Link	pending
R156.htm	Edgar Link	pending
R157.htm	Edgar Link	pending
R158.htm	Edgar Link	pending
R159.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R160.htm	Edgar Link	pending
R161.htm	Edgar Link	pending
R162.htm	Edgar Link	pending
R163.htm	Edgar Link	pending
R164.htm	Edgar Link	pending
R165.htm	Edgar Link	pending
R166.htm	Edgar Link	pending
R167.htm	Edgar Link	pending
R168.htm	Edgar Link	pending
R169.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R170.htm	Edgar Link	pending
R171.htm	Edgar Link	pending
R172.htm	Edgar Link	pending
R173.htm	Edgar Link	pending
R174.htm	Edgar Link	pending
R175.htm	Edgar Link	pending
R176.htm	Edgar Link	pending
R177.htm	Edgar Link	pending
R178.htm	Edgar Link	pending
R179.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R180.htm	Edgar Link	pending
R181.htm	Edgar Link	pending
R182.htm	Edgar Link	pending
R183.htm	Edgar Link	pending
R184.htm	Edgar Link	pending
R185.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
x33x0.gif	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$DUK
Duke Energy CORP Stock $duk

2012 Q4 Form 10-K Financial Statement

#000132616013000009 Filed on March 01, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DUK Duke Energy CORP Stock $duk

2012 Q4 Form 10-K Financial Statement

#000132616013000009 Filed on March 01, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DUK
Duke Energy CORP Stock $duk