v2.4.0.8

Condensed Consolidated Statements of Changes in Equity (USD $) In Millions, except Share data, unless otherwise specified | Total | Common Stock [Member] | Additional Paid In Capital [Member] | Retained Earnings [Member] | Foreign Currency Translation Adjustments [Member] | Net Gains (Losses) on Cash Flow Hedges [Member] | Net Gains (Losses) on Available for Sale Securities [Member] | Pension and OPEB Related Adjustments [Member] | Common Stockholders' Equity [Member] | Noncontrolling Interest [Member] | Duke Energy Carolinas [Member] | Duke Energy Carolinas [Member] Members Equity [Member] | Duke Energy Carolinas [Member] Net Gains (Losses) on Cash Flow Hedges [Member] | Duke Energy Carolinas [Member] Net Gains (Losses) on Available for Sale Securities [Member] | Progress Energy [Member] | Progress Energy [Member] Common Stock [Member] | Progress Energy [Member] Additional Paid In Capital [Member] | Progress Energy [Member] Retained Earnings [Member] | Progress Energy [Member] Net Gains (Losses) on Cash Flow Hedges [Member] | Progress Energy [Member] Net Gains (Losses) on Available for Sale Securities [Member] | Progress Energy [Member] Pension and OPEB Related Adjustments [Member] | Progress Energy [Member] Common Stockholders' Equity [Member] | Progress Energy [Member] Noncontrolling Interest [Member] | Duke Energy Progress [Member] | Duke Energy Progress [Member] Common Stock [Member] | Duke Energy Progress [Member] Retained Earnings [Member] | Duke Energy Florida [Member] | Duke Energy Florida [Member] Common Stock [Member] | Duke Energy Florida [Member] Retained Earnings [Member] | Duke Energy Florida [Member] Net Gains (Losses) on Cash Flow Hedges [Member] | Duke Energy Florida [Member] Pension and OPEB Related Adjustments [Member] | Duke Energy Ohio [Member] | Duke Energy Ohio [Member] Common Stock [Member] | Duke Energy Ohio [Member] Additional Paid In Capital [Member] | Duke Energy Ohio [Member] Retained Earnings [Member] | Duke Energy Ohio [Member] Pension and OPEB Related Adjustments [Member] | Duke Energy Indiana [Member] | Duke Energy Indiana [Member] Common Stock [Member] | Duke Energy Indiana [Member] Additional Paid In Capital [Member] | Duke Energy Indiana [Member] Retained Earnings [Member] | Duke Energy Indiana [Member] Net Gains (Losses) on Cash Flow Hedges [Member]
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Beginning member's equity at Dec. 31, 2012 |  |  |  |  |  |  |  |  |  |  | $ 9,872 | $ 9,888 | $ (15) | $ (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Dec. 31, 2012 | 40,941 | 1 | 39,279 | 1,889 | (116) | (100) |  | (90) | 40,863 | 78 |  |  |  |  | 10,185 |  | 7,465 | 2,783 | (42) |  | (25) | 10,181 | 4 | 5,127 | 2,159 | 2,968 | 4,799 | 1,762 | 3,037 |  |  | 5,166 | 762 | 4,882 | (477) | (1) | 3,708 | 1 | 1,384 | 2,318 | 5
Balance, in shares at Dec. 31, 2012 |  | 704,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,984 |  |  | 1,977 |  |  |  |  | 1,977 |  |  |  |  |  | 479 |  |  | 477 |  |  |  | 477 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 1,977 |  |  |  |  |  |  |  |  |  | 767 | 767 |  |  | 477 |  |  |  |  |  |  |  |  | 362 |  | 362 | 250 |  | 250 |  |  | 96 |  |  | 96 |  | 276 |  |  | 276 |
Other comprehensive income (loss), net of tax | (78) |  |  |  | (133) | 56 | (2) | 5 | (74) | (4) | 1 |  | 1 |  | 8 |  |  |  | 3 |  | 5 | 8 |  |  |  |  | (1) |  |  |  | (1) | 1 |  |  |  | 1 | (2) |  |  |  | (2)
Common stock issuances, including dividend reinvestment and employee benefits | 38 |  | 38 |  |  |  |  |  | 38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances, including dividend reinvestment and employee benefits, shares |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends | (1,636) |  |  | (1,636) |  |  |  |  | (1,636) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (225) |  | (225) |  |  |  |  |  |  |  | (125) |  |  | (125) |
Distributions to parent |  |  |  |  |  |  |  |  |  |  | (500) | (500) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Premium on the redemption of preferred stock of subsidiaries | (3) |  |  | (3) |  |  |  |  | (3) |  |  |  |  |  | (3) |  |  | (3) |  |  |  | (3) |  | (2) |  | (2) | (1) |  | (1) |  |  |  |  |  |  |  |  |  |  |  |
Changes in noncontrolling interest in subsidiaries | (9) |  |  |  |  |  |  |  |  | (9) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions to noncontrolling interest in subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2) |  |  |  |  |  |  |  | (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending member's equity at Sep. 30, 2013 |  |  |  |  |  |  |  |  |  |  | 10,140 | 10,155 | (14) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Sep. 30, 2013 | 41,237 | 1 | 39,317 | 2,227 | (249) | (44) | (2) | (85) | 41,165 | 72 |  |  |  |  | 10,667 |  | 7,465 | 3,257 | (39) |  | (20) | 10,663 | 4 | 5,487 | 2,159 | 3,328 | 4,822 | 1,762 | 3,061 |  | (1) | 5,263 | 762 | 4,882 | (381) |  | 3,857 | 1 | 1,384 | 2,469 | 3
Balance, in shares at Sep. 30, 2013 |  | 706,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning member's equity at Jun. 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,008 |  |  |  |  |  |  |  |  |  |  |  |  |  | 342 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 1,004 |  |  |  |  |  |  |  |  |  | 342 |  |  |  | 341 |  |  |  |  |  |  |  |  | 175 |  |  | 197 |  |  |  |  | 59 |  |  |  |  | 104 |  |  |  |
Other comprehensive income (loss), net of tax | (4) |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending member's equity at Sep. 30, 2013 |  |  |  |  |  |  |  |  |  |  | 10,140 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Sep. 30, 2013 | 41,237 |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,667 |  | 7,465 |  |  |  |  |  |  | 5,487 |  |  | 4,822 | 1,762 |  |  |  | 5,263 | 762 | 4,882 |  |  | 3,857 |  |  |  |
Beginning member's equity at Dec. 31, 2013 |  |  |  |  |  |  |  |  |  |  | 10,350 | 10,365 | (14) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Dec. 31, 2013 | 41,408 | 1 | 39,365 | 2,363 | (307) | (40) |  | (52) | 41,330 | 78 |  |  |  |  | 10,864 |  | 7,467 | 3,452 | (43) |  | (16) | 10,860 | 4 | 5,625 | 2,159 | 3,466 | 4,797 | 1,762 | 3,036 | (1) |  | 5,269 | 762 | 4,882 | (375) |  | 3,939 | 1 | 1,384 | 2,551 | 3
Balance, in shares at Dec. 31, 2013 | 706,000,000 | 706,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  | 160,000,000 |  |  | 100 |  |  |  |  | 89,663,086 |  |  |  |  | 53,913,701 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,789 |  |  | 1,786 |  |  |  |  | 1,786 |  |  |  |  |  | 735 |  |  | 733 |  |  |  | 733 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | 3 |  |  |  |  |  |  |  |  | 3 |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 1,786 |  |  |  |  |  |  |  |  |  | 933 | 933 |  |  | 733 |  |  |  |  |  |  |  |  | 391 |  | 391 | 455 |  |  |  |  | (558) |  |  | (558) |  | 301 |  |  | 301 |
Other comprehensive income (loss), net of tax | (52) |  |  |  | (55) | (5) | 2 | 1 | (57) | 5 | 2 |  | 2 |  | 8 |  |  |  | 5 | 1 | 2 | 8 |  |  |  |  | 1 |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Common stock issuances, including dividend reinvestment and employee benefits | 23 |  | 23 |  |  |  |  |  | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances, including dividend reinvestment and employee benefits, shares |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends | (1,670) |  |  | (1,670) |  |  |  |  | (1,670) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (224) |  | (224) | (124) |  | (124) |  |  | (100) |  | (100) |  |  | (451) |  |  | (451) |
Distributions to parent |  |  |  |  |  |  |  |  |  |  | (376) | (376) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions to noncontrolling interest in subsidiaries | (45) |  |  |  |  |  |  |  |  | (45) |  |  |  |  | (37) |  |  |  |  |  |  |  | (37) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer of service company net assets to Duke Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (538) |  |  | (538) |  |  |  | (538) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending member's equity at Sep. 30, 2014 |  |  |  |  |  |  |  |  |  |  | 10,909 | 10,922 | (12) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Sep. 30, 2014 | 41,453 | 1 | 39,388 | 2,479 | (362) | (45) | 2 | (51) | 41,412 | 41 |  |  |  |  | 11,032 |  | 7,467 | 3,647 | (38) | 1 | (14) | 11,063 | (31) | 5,792 | 2,159 | 3,633 | 5,129 | 1,762 | 3,367 |  |  | 4,611 | 762 | 4,782 | (933) |  | 3,789 | 1 | 1,384 | 2,401 | 3
Balance, in shares at Sep. 30, 2014 | 707,000,000 | 707,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  | 160,000,000 |  |  | 100 |  |  |  |  | 89,663,086 |  |  |  |  | 53,913,701 |  |  |  |
Beginning member's equity at Jun. 30, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,269 |  |  |  |  |  |  |  |  |  |  |  |  |  | 330 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | (5) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 1,274 |  |  |  |  |  |  |  |  |  | 377 |  |  |  | 329 |  |  |  |  |  |  |  |  | 157 |  |  | 205 |  |  |  |  | 439 |  |  |  |  | 101 |  |  |  |
Other comprehensive income (loss), net of tax | (97) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending member's equity at Sep. 30, 2014 |  |  |  |  |  |  |  |  |  |  | 10,909 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Sep. 30, 2014 | $ 41,453 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,032 |  | $ 7,467 |  |  |  |  |  |  | $ 5,792 |  |  | $ 5,129 | $ 1,762 |  |  |  | $ 4,611 | $ 762 |  |  |  | $ 3,789 |  |  |  |
Balance, in shares at Sep. 30, 2014 | 707,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  | 160,000,000 |  |  | 100 |  |  |  |  | 89,663,086 |  |  |  |  | 53,913,701 |  |  |  |

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