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Disclosure - Guarantees and Indemnifications link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - Joint Ownership of Generating and Transmission Facilities link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - Property, Plant and Equipment link:presentationLink link:calculationLink link:definitionLink 11201 - Disclosure - Goodwill, Intangible Assets and Impairments link:presentationLink link:calculationLink link:definitionLink 11401 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities link:presentationLink link:calculationLink link:definitionLink 11501 - Disclosure - Fair Value of Financial Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 11601 - Disclosure - Investments in Debt and Equity Securities link:presentationLink link:calculationLink link:definitionLink 11701 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 11801 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 12001 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 12101 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 12401 - Disclosure - Quarterly Financial Data link:presentationLink link:calculationLink link:definitionLink 20102 - Disclosure - Summary of Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 30403 - Disclosure - Regulatory Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 30803 - Disclosure - Joint Ownership of Generating and Transmission Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 30903 - 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Disclosure - Summary of Significant Accounting Policies (Excise Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 40201 - Disclosure - Business Segments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40204 - Disclosure - Business Segments (Business Segments Data) (Details) link:presentationLink link:calculationLink link:definitionLink 40205 - Disclosure - Business Segments (Geographic Data) (Details) link:presentationLink link:calculationLink link:definitionLink 40304 - Disclosure - Acquisitions and Dispositions of Businesses and Sales of Other Assets (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40404 - Disclosure - Regulatory Matters (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40405 - Disclosure - Regulatory Matters (Regulatory Assets and Liabilities) (Tables) (Details) link:presentationLink link:calculationLink link:definitionLink 40504 - Disclosure - Commitments and Contingencies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40505 - Disclosure - Commitments and Contingencies (Amortization on the Consolidated Statements of Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 40601 - Disclosure - Debt and Credit Facilities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40602 - Disclosure - Debt and Credit Facilities (Summary of debt and related terms) (Details) link:presentationLink link:calculationLink link:definitionLink 40603 - Disclosure - Debt and Credit Facilities (Annual Maturities) (Details) link:presentationLink link:calculationLink link:definitionLink 40604 - Disclosure - Debt and Credit Facilities (Tax Exempt, Commercial Paper Issuance and Money Pool Borrowings) (Details) link:presentationLink link:calculationLink link:definitionLink 40704 - Disclosure - Guarantees and Indemnifications (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - Joint Ownership of Generating and Transmission (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40802 - Disclosure - Joint Ownership of Generating and Transmission (Tables) (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - Asset Retirement Obligations (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40902 - Disclosure - Asset Retirement Obligations (Tables) (Details) link:presentationLink link:calculationLink link:definitionLink 40903 - Disclosure - Asset Retirement Obligations (Other Deferred Credits and Other Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - Property, Plant and Equipment (Tables) (Details) link:presentationLink link:calculationLink link:definitionLink 41002 - Disclosure - Property, Plant and Equipment (Capitalized Interest) (Details) link:presentationLink link:calculationLink link:definitionLink 41101 - Disclosure - Other Income and Expenses, Net (Components of Other Income and Expenses, Net) (Details) link:presentationLink link:calculationLink link:definitionLink 41201 - Disclosure - Goodwill and Intangible Assets (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41202 - Disclosure - Goodwill and Intangible Assets (Goodwill) (Details) link:presentationLink link:calculationLink link:definitionLink 41203 - Disclosure - Goodwill and intangible Assets (Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 41204 - Disclosure - Goodwill and Intangible Assets ( Emission Allowances) (Details) link:presentationLink link:calculationLink link:definitionLink 41205 - Disclosure - Goodwill and Intangible Assets ( Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 41302 - Disclosure - Investments in Unconsolidated Affiliates and Related Party Transactions (Investments in Equity Method Unconsolidated Affiliates) (Details) link:presentationLink link:calculationLink link:definitionLink 41303 - Disclosure - Investments in Unconsolidated Affiliates and Related Party Transactions (Equity in Earnings (Losses) of Equity Method Unconsolidated Affiliates) (Details) link:presentationLink link:calculationLink link:definitionLink 41304 - Disclosure - Investments in Unconsolidated Affiliates and Related Party Transactions (Summarized Combined Balance Sheet Information of Equity Method Unconsolidated Affiliates) (Details) link:presentationLink link:calculationLink link:definitionLink 41305 - Disclosure - Investments in Unconsolidated Affiliates and Related Party Transactions (Summarized Income Statement Information of Equity Method Unconsolidated Affiliates) (Details) link:presentationLink link:calculationLink link:definitionLink 41401 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41402 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Table 1) (Details) link:presentationLink link:calculationLink link:definitionLink 41403 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Table 2) (Details) link:presentationLink link:calculationLink link:definitionLink 41404 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Table 3) (Details) link:presentationLink link:calculationLink link:definitionLink 41405 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Table 4) (Details) link:presentationLink link:calculationLink link:definitionLink 41406 - Disclosure - Risk Management, Derivative Instruments and Hedging Activities (Table 5) (Details) link:presentationLink link:calculationLink link:definitionLink 41501 - Disclosure - Fair Value of Financial Assets and Liabilities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41502 - Disclosure - Fair Value of Financial Assets and Liabilities (Table1) (Details) link:presentationLink link:calculationLink link:definitionLink 41503 - Disclosure - Fair Value of Financial Assets and Liabilities (Table 2) (Details) link:presentationLink link:calculationLink link:definitionLink 41504 - Disclosure - Fair Value of Financial Assets and Liabilities (Table 3) (Details) link:presentationLink link:calculationLink link:definitionLink 41602 - Disclosure - Investments in Debt and Equity Securities (Available-for-sale investments) (Details) link:presentationLink link:calculationLink link:definitionLink 41603 - Disclosure - Investments in Debt and Equity Securities (Unrealized losses of available-for-sale debt and equity securities in a continuous loss position) (Details) link:presentationLink link:calculationLink link:definitionLink 41701 - Disclosure - Variable Interest Entities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41702 - Disclosure - Variable Interest Entities (Table 1) (Details) link:presentationLink link:calculationLink link:definitionLink 41703 - Disclosure - Variable Interest Entities (Table 2) (Details) link:presentationLink link:calculationLink link:definitionLink 41804 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 41804 - Disclosure - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 41904 - Disclosure - Severance (Details) link:presentationLink link:calculationLink link:definitionLink 42002 - Disclosure - Stock-Based Compensation (Stock-Based Compensation Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 42102 - Disclosure - Employee Benefit Plans (Components of Net Periodic Costs) (Details) link:presentationLink link:calculationLink link:definitionLink 42103 - Disclosure - Employee Benefit Plans (Schedule of Other Changes in Plan Assets and Projected Benefit Obligations) (Details) link:presentationLink link:calculationLink link:definitionLink 42104 - Disclosure - Employee Benefit Plans (Funded Status) (Details) link:presentationLink link:calculationLink link:definitionLink 42105 - Disclosure - Employee Benefit Plans (Amounts Recognized in the Consolidated Balance Sheets) (Details) link:presentationLink link:calculationLink link:definitionLink 42106 - Disclosure - Employee Benefit Plans (Summary of Accumulated Other Comprehensive Income) (Details) link:presentationLink link:calculationLink link:definitionLink 42107 - Disclosure - Employee Benefit Plans (Excess of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 42108 - Disclosure - Employee Benefit Plans (Assumptions Used for Pension Benefits Accounting) (Details) link:presentationLink link:calculationLink link:definitionLink 42109 - Disclosure - Employee Benefit Plans (Assumed Health Care Cost Trend Rates) (Details) link:presentationLink link:calculationLink link:definitionLink 42110 - Disclosure - Employee Benefit Plans (Sensitivity to Changes in Assumed Health Care Cost Trend Rates) (Details) link:presentationLink link:calculationLink link:definitionLink 42111 - Disclosure - Employee Benefit Plans (Expected Benefit Payments) (Details) link:presentationLink link:calculationLink link:definitionLink 42112 - Disclosure - Employee Benefit Plans (Target and Actual Asset Allocations) (Details) link:presentationLink link:calculationLink link:definitionLink 42113 - Disclosure - Employee Benefit Plans (Fair Value Measurements of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 42114 - Disclosure - Employee Benefit Plans (Summary of Fair Value Measurements) (Details) link:presentationLink link:calculationLink link:definitionLink 42115 - Disclosure - Employee Benefit Plans (Reconciliation of Assets Measured at Fair Value on a Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 42201 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 42202 - Disclosure - Income Taxes (Components of Income Tax Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 42203 - Disclosure - Income Taxes (Duke Energy Income from Continuing Operations before Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 42204 - Disclosure - Income Taxes (Reconciliation of Income Tax Expense at the U.S. Federal Statutory Tax Rate to the Actual Tax Expense from Continuing Operations (Statutory Rate Reconciliation)) (Details) link:presentationLink link:calculationLink link:definitionLink 42205 - Disclosure - Income Taxes (Net Deferred Income Tax Liability Components) (Details) link:presentationLink link:calculationLink link:definitionLink 42206 - Disclosure - Income Taxes (Deferred Tax Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 42207 - Disclosure - Income Taxes (Changes to Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 42604 - Disclosure - Schedule II - Valuation And Qualitying Accounts Reserves (Details) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 11101 - Disclosure - Other Income and Expenses, Net link:presentationLink link:calculationLink link:definitionLink 11301 - Disclosure - Investments in Unconsolidated Affiliates and Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 11901 - Disclosure - Severance link:presentationLink link:calculationLink link:definitionLink 12201 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 12301 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 12501 - Disclosure - Schedule I - Condensed Financial Information of Parent link:presentationLink link:calculationLink link:definitionLink 12601 - Disclosure - Schedule II - Valuation And Qualitying Accounts link:presentationLink link:calculationLink link:definitionLink 22502 - Disclosure - Schedule I - Condensed Financial Information of Parent (Policy) link:presentationLink link:calculationLink link:definitionLink 30103 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 30203 - Disclosure - Business Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 30603 - Disclosure - Debt and Credit Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 31103 - Disclosure - Other Income and Expense, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 31203 - 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