v2.4.0.8

Investments in Debt and Equity Securities (Tables) | 9 Months Ended
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Sep. 30, 2014
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value of investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
NDTF |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 74 |  |  | $ | — |  |  | $ | — |  |  | $ | 110 |
Equity securities | 1,943 |  |  | 28 |  |  | 3,825 |  |  | 1,813 |  |  | 10 |  |  | 3,579 |
Corporate debt securities | 13 |  |  | 3 |  |  | 493 |  |  | 8 |  |  | 6 |  |  | 400 |
Municipal bonds | 5 |  |  | 1 |  |  | 132 |  |  | 2 |  |  | 6 |  |  | 160 |
U.S. government bonds | 12 |  |  | 4 |  |  | 713 |  |  | 7 |  |  | 12 |  |  | 730 |
Other debt securities | — |  |  | 1 |  |  | 137 |  |  | 22 |  |  | 2 |  |  | 154 |
Total NDTF | $ | 1,973 |  |  | $ | 37 |  |  | $ | 5,374 |  |  | $ | 1,852 |  |  | $ | 36 |  |  | $ | 5,133 |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 16 |  |  | $ | — |  |  | $ | — |  |  | $ | 21 |
Equity securities | 32 |  |  | — |  |  | 95 |  |  | 29 |  |  | — |  |  | 91 |
Corporate debt securities | 2 |  |  | — |  |  | 68 |  |  | 1 |  |  | 1 |  |  | 99 |
Municipal bonds | 3 |  |  | — |  |  | 82 |  |  | 2 |  |  | 2 |  |  | 79 |
U.S. government bonds | — |  |  | — |  |  | 16 |  |  | — |  |  | — |  |  | 17 |
Other debt securities | 1 |  |  | 5 |  |  | 96 |  |  | — |  |  | 8 |  |  | 111 |
Total Other Investments(a) | $ | 38 |  |  | $ | 5 |  |  | $ | 373 |  |  | $ | 32 |  |  | $ | 11 |  |  | $ | 418 |
Total Investments | $ | 2,011 |  |  | $ | 42 |  |  | $ | 5,747 |  |  | $ | 1,884 |  |  | $ | 47 |  |  | $ | 5,551 |
(a) These amounts are recorded in Other with Investments and Other Assets on the Condensed Consolidated Balance Sheets
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 33 |
Due after one through five years | 452 |
Due after five through 10 years | 457 |
Due after 10 years | 795 |
Total | $ | 1,737 |
Schedule of Realized Gain (Loss) | Realized gains and losses, which were determined on a specific identification basis, from sales of available-for-sale securities were as follows.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Realized gains | $ | 28 |  |  | $ | 72 |  |  | $ | 90 |  |  | $ | 135 |
Realized losses | 51 |  |  | 16 |  |  | 57 |  |  | 38 |
Duke Energy Carolinas [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value of investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
NDTF |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 39 |  |  | $ | — |  |  | $ | — |  |  | $ | 42 |
Equity securities | 1,046 |  |  | 17 |  |  | 2,124 |  |  | 974 |  |  | 6 |  |  | 1,964 |
Corporate debt securities | 7 |  |  | 3 |  |  | 345 |  |  | 5 |  |  | 5 |  |  | 274 |
Municipal bonds | 1 |  |  | — |  |  | 22 |  |  | — |  |  | 2 |  |  | 54 |
U.S. government bonds | 4 |  |  | 2 |  |  | 317 |  |  | 3 |  |  | 7 |  |  | 354 |
Other debt securities | — |  |  | 1 |  |  | 122 |  |  | 22 |  |  | 2 |  |  | 146 |
Total NDTF | $ | 1,058 |  |  | $ | 23 |  |  | $ | 2,969 |  |  | $ | 1,004 |  |  | $ | 22 |  |  | $ | 2,834 |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Other debt securities | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 3 |
Total Other Investments(a) | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 3 |
Total Investments | $ | 1,058 |  |  | $ | 24 |  |  | $ | 2,972 |  |  | $ | 1,004 |  |  | $ | 23 |  |  | $ | 2,837 |
(a) These amounts are recorded in Other within Investments and Other Assets on the Condensed Consolidated Balance Sheets.
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 2 |
Due after one through five years | 171 |
Due after five through 10 years | 256 |
Due after 10 years | 380 |
Total | $ | 809 |
Schedule of Realized Gain (Loss) | Realized gains and losses, which were determined on a specific identification basis, from sales of available-for-sale securities were as follows.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Realized gains | $ | 20 |  |  | $ | 49 |  |  | $ | 72 |  |  | $ | 95 |
Realized losses | 48 |  |  | 1 |  |  | 50 |  |  | 11 |
Progress Energy [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
NDTF |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 35 |  |  | $ | — |  |  | $ | — |  |  | $ | 68 |
Equity securities | 897 |  |  | 11 |  |  | 1,701 |  |  | 839 |  |  | 4 |  |  | 1,615 |
Corporate debt securities | 6 |  |  | — |  |  | 148 |  |  | 3 |  |  | 1 |  |  | 126 |
Municipal bonds | 4 |  |  | 1 |  |  | 110 |  |  | 2 |  |  | 4 |  |  | 106 |
U.S. government bonds | 8 |  |  | 2 |  |  | 396 |  |  | 4 |  |  | 5 |  |  | 376 |
Other debt securities | — |  |  | — |  |  | 15 |  |  | — |  |  | — |  |  | 8 |
Total NDTF | $ | 915 |  |  | $ | 14 |  |  | $ | 2,405 |  |  | $ | 848 |  |  | $ | 14 |  |  | $ | 2,299 |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 15 |  |  | $ | — |  |  | $ | — |  |  | $ | 20 |
Municipal bonds | 3 |  |  | — |  |  | 43 |  |  | 1 |  |  | — |  |  | 39 |
Total Other Investments(a) | $ | 3 |  |  | $ | — |  |  | $ | 58 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 59 |
Total Investments | $ | 918 |  |  | $ | 14 |  |  | $ | 2,463 |  |  | $ | 849 |  |  | $ | 14 |  |  | $ | 2,358 |
(a) These amounts are recorded in Other within Investments and Other Assets on the Condensed Consolidated Balance Sheets.
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 21 |
Due after one through five years | 218 |
Due after five through 10 years | 145 |
Due after 10 years | 328 |
Total | $ | 712 |
Schedule of Realized Gain (Loss) | Realized gains and losses, which were determined on a specific identification basis, from sales of available-for-sale securities were as follows.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Realized gains | $ | 8 |  |  | $ | 22 |  |  | $ | 17 |  |  | $ | 37 |
Realized losses | 3 |  |  | 11 |  |  | 6 |  |  | 20 |
Duke Energy Progress [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value of investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
NDTF |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 28 |  |  | $ | — |  |  | $ | — |  |  | $ | 48 |
Equity securities | 574 |  |  | 7 |  |  | 1,127 |  |  | 535 |  |  | 3 |  |  | 1,069 |
Corporate debt securities | 4 |  |  | — |  |  | 95 |  |  | 3 |  |  | 1 |  |  | 80 |
Municipal bonds | 4 |  |  | 1 |  |  | 108 |  |  | 2 |  |  | 4 |  |  | 104 |
U.S. government bonds | 6 |  |  | 2 |  |  | 257 |  |  | 4 |  |  | 3 |  |  | 232 |
Other debt securities | — |  |  | — |  |  | 8 |  |  | — |  |  | — |  |  | 5 |
Total NDTF | $ | 588 |  |  | $ | 10 |  |  | $ | 1,623 |  |  | $ | 544 |  |  | $ | 11 |  |  | $ | 1,538 |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | — |  |  | $ | 2 |
Total Other Investments(a) | $ | — |  |  | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | — |  |  | $ | 2 |
Total Investments | $ | 588 |  |  | $ | 10 |  |  | $ | 1,625 |  |  | $ | 544 |  |  | $ | 11 |  |  | $ | 1,540 |
(a) These amounts are recorded in Other with Investments and Other Assets on the Condensed Consolidated Balance Sheets.
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 10 |
Due after one through five years | 147 |
Due after five through 10 years | 94 |
Due after 10 years | 217 |
Total | $ | 468 |
Schedule of Realized Gain (Loss) | Realized gains and losses, which were determined on a specific identification basis, from sales of available-for-sale securities were as follows.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Realized gains | $ | 4 |  |  | $ | 7 |  |  | $ | 11 |  |  | $ | 15 |
Realized losses | 2 |  |  | 2 |  |  | 4 |  |  | 6 |
Duke Energy Florida [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value of investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
NDTF |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 7 |  |  | $ | — |  |  | $ | — |  |  | $ | 20 |
Equity securities | 323 |  |  | 4 |  |  | 574 |  |  | 304 |  |  | 1 |  |  | 546 |
Corporate debt securities | 2 |  |  | — |  |  | 53 |  |  | — |  |  | — |  |  | 46 |
Municipal bonds | — |  |  | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |
U.S. government bonds | 2 |  |  | — |  |  | 139 |  |  | — |  |  | 2 |  |  | 144 |
Other debt securities | — |  |  | — |  |  | 7 |  |  | — |  |  | — |  |  | 3 |
Total NDTF | $ | 327 |  |  | $ | 4 |  |  | $ | 782 |  |  | $ | 304 |  |  | $ | 3 |  |  | $ | 761 |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 3 |
Municipal bonds | 3 |  |  | — |  |  | 43 |  |  | 1 |  |  | — |  |  | 39 |
Total Other Investments(a) | $ | 3 |  |  | $ | — |  |  | $ | 43 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 42 |
Total Investments | $ | 330 |  |  | $ | 4 |  |  | $ | 825 |  |  | $ | 305 |  |  | $ | 3 |  |  | $ | 803 |
(a) These amounts are recorded in Other with Investments and Other Assets on the Condensed Consolidated Balance Sheets.
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 11 |
Due after one through five years | 71 |
Due after five through 10 years | 51 |
Due after 10 years | 111 |
Total | $ | 244 |
Schedule of Realized Gain (Loss) | Realized gains and losses, which were determined on a specific identification basis, from sales of available-for-sale securities were as follows.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Realized gains | $ | 3 |  |  | $ | 14 |  |  | $ | 5 |  |  | $ | 22 |
Realized losses | 1 |  |  | 9 |  |  | 2 |  |  | 13 |
Duke Energy Indiana [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Available-for-sale Securities | The following table presents the estimated fair value of investments in available-for-sale securities.
| September 30, 2014 |  | December 31, 2013
(in millions) | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
Other Investments |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
Equity securities | 26 |  |  | — |  |  | 68 |  |  | 24 |  |  | — |  |  | 65 |
Municipal bonds | — |  |  | — |  |  | 30 |  |  | — |  |  | 1 |  |  | 28 |
Total Other Investments(a) | $ | 26 |  |  | $ | — |  |  | $ | 99 |  |  | $ | 24 |  |  | $ | 1 |  |  | $ | 94 |
Total Investments | $ | 26 |  |  | $ | — |  |  | $ | 99 |  |  | $ | 24 |  |  | $ | 1 |  |  | $ | 94 |
(a) These amounts are recorded in Other within Investments and Other Assets on the Condensed Consolidated Balance Sheets.
Investments Classified by Contractual Maturity Date | The table below summarizes the maturity date for debt securities.
(in millions) | September 30, 2014 |
Due in one year or less | $ | 1 |
Due after one through five years | 18 |
Due after five through 10 years | 8 |
Due after 10 years | 3 |
Total | $ | 30 |

X
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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