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- Definition

Plant capacity in Megawatts adjusted by the Company's ownership interests.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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- Definition

The number of issuer's shares to which the forward contract is indexed.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 50
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- Definition

Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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-Name Accounting Standards Codification
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- Definition

Amount of acquisition adjustments included in property, plant and equipment (PPE) for utilities.

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No definition available.

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Acquisitions and Dispositions - Acquisitions (Narrative) (Details) shares in Millions, $ in Millions			3 Months Ended		9 Months Ended
	Oct. 05, 2016 USD ($)	Oct. 03, 2016 USD ($)	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($) MW	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($)	Oct. 28, 2016 USD ($)	Aug. 31, 2016 USD ($)	Aug. 01, 2016 USD ($)	Feb. 22, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Payments to acquire businesses					$ 10	$ 1,317
Long-term debt assumed			$ 47,165		47,165						$ 39,569
Piedmont Natural Gas [Member]
Business Acquisition [Line Items]
Business Combination, Integration Related Costs			14		22
Long-term debt assumed								$ 3,750
Facility size			$ 4,900		$ 4,900				$ 4,900
Shares offered \| shares			10.6		10.6
Business Combination, After Tax Integration Related Costs			$ 41		$ 161
Piedmont Natural Gas [Member] \| Subsequent Event [Member]
Business Acquisition [Line Items]
Payments to acquire businesses		$ 5,000
Proceeds from Issuance or Sale of Equity	$ 723
Interest Expense [Member] \| Piedmont Natural Gas [Member]
Business Acquisition [Line Items]
Business Combination, Integration Related Costs			51		234
August 2016 Term Loan Facility [Member]
Business Acquisition [Line Items]
Facility size at period end			850		850
Facility size									$ 1,500	$ 1,000
August 2016 Term Loan Facility [Member] \| Subsequent Event [Member]
Business Acquisition [Line Items]
Facility size at period end							$ 1,500
August 2016 Term Loan Facility [Member] \| Piedmont Natural Gas [Member]
Business Acquisition [Line Items]
Facility size at period end			750		750
Facility size			1,500		1,500
Duke Energy Progress [Member]
Business Acquisition [Line Items]
Payments to acquire businesses						1,249
Long-term debt assumed			7,011		7,011						$ 6,518
Duke Energy Progress [Member] \| NCEMPA Generating Assets [Member]
Business Acquisition [Line Items]
Payments to acquire businesses				$ 1,250
Owned Plant Capacity \| MW				700
Acquisition adjustment, recorded within property, plant and equipment				$ 350		$ 350
Interest Rate Contracts [Member] \| Piedmont Natural Gas [Member]
Business Acquisition [Line Items]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments			$ 22		$ 190