v2.4.0.8

Debt and Credit Facilities (Schedule of Line of Credit Facilities) (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014
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Line of Credit Facility [Line Items] |  |
Facility size | $ 6,000 |
Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 6,000 | [1]
Commercial paper | (1,278) | [2]
Outstanding letters of credit | (64) |
Tax exempt bonds | (116) |
Available capacity | 4,542 |
Parent Company [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 2,250 | [1]
Commercial paper | (784) | [2]
Outstanding letters of credit | (56) |
Tax exempt bonds | 0 |
Available capacity | 1,410 |
Parent Company [Member] | Proceeds Loaned To Subsidiary Registrants [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial paper | (450) |
Duke Energy Carolinas [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 1,000 | [1]
Commercial paper | (300) | [2]
Outstanding letters of credit | (4) |
Tax exempt bonds | (35) |
Available capacity | 661 |
Duke Energy Progress [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 750 | [1]
Commercial paper | (27) |
Outstanding letters of credit | (2) |
Tax exempt bonds | 0 |
Available capacity | 721 |
Duke Energy Florida [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 650 | [1]
Commercial paper | 0 |
Outstanding letters of credit | (1) |
Tax exempt bonds | 0 |
Available capacity | 649 |
Duke Energy Ohio [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 650 | [1]
Commercial paper | (4) |
Outstanding letters of credit | 0 |
Tax exempt bonds | 0 |
Available capacity | 646 |
Duke Energy Indiana [Member] | Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Facility size | 700 | [1]
Commercial paper | (163) | [2]
Outstanding letters of credit | (1) |
Tax exempt bonds | (81) |
Available capacity | $ 455 |
[1] | Represents the sublimit of each borrower.
[2] | Duke Energy issued $450 million of commercial paper and loaned the proceeds through the money pool to Duke Energy Carolinas and Duke Energy Indiana. The balances are classified within Long-Term Debt Payable to Affiliated Companies in Duke Energy Carolinas' and Duke Energy Indiana’s Condensed Consolidated Balance Sheets.

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Represents the current and noncurrent portions of a debt security issued by a state, certain agencies or authorities, a local government, or development corporation to finance the construction of air- or water-pollution control facilities or sewage or solid waste disposal facilities pursuant to federal law. The bonds are backed by the credit of the beneficiary of the financing rather than the credit of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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