v3.3.0.814

Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Millions | 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] 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 Progress [Member] Members Equity [Member] | Duke Energy Florida [Member] | Duke Energy Florida [Member] Common Stock [Member] | Duke Energy Florida [Member] Retained Earnings [Member] | Duke Energy Florida [Member] Members Equity [Member] | Duke Energy Florida [Member] Net Gains (Losses) on Cash Flow Hedges [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 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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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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning member's equity at Dec. 31, 2013 |  |  |  |  |  |  |  |  |  |  | $ 10,350 | $ 10,365 | $ (14) | $ (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,789 |  |  | 1,786 |  |  |  |  | 1,786 | 3 |  |  |  |  | 735 |  | 733 |  |  |  | 733 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 1,786 |  |  |  |  |  |  |  |  |  | 933 | 933 |  |  | 733 |  |  |  |  |  |  |  | 391 |  | 391 |  | 455 |  | 455 |  |  | (558) |  |  | (558) | 301 |  |  | 301 |
Other comprehensive (loss) income, 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, shares |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances, including dividend reinvestment and employee benefits | 23 |  | 23 |  |  |  |  |  | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending member's equity at Sep. 30, 2014 |  |  |  |  |  |  |  |  |  |  | 10,909 | 10,922 | (12) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Dec. 31, 2014 | $ 40,899 | $ 1 | 39,405 | 2,012 | (439) | (59) | 3 | (48) | 40,875 | 24 |  |  |  |  | $ 11,176 | 7,467 | 3,782 | (35) | 1 | (7) | 11,208 | (32) | $ 5,867 | 2,159 | 3,708 |  | $ 5,222 | 1,762 | 3,460 |  |  | $ 4,674 | 762 | 4,782 | (870) | $ 3,848 | 1 | 1,384 | 2,460 | 3
Balance, in shares at Dec. 31, 2014 | 707,000,000 | 707,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  | 160,000,000 |  |  |  | 100 |  |  |  |  | 89,663,086 |  |  |  | 53,913,701 |  |  |  |
Beginning member's equity at Dec. 31, 2014 |  |  |  |  |  |  |  |  |  |  | 10,924 | 10,937 | (12) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ 2,349 |  |  | 2,339 |  |  |  |  | 2,339 | 10 |  |  |  |  | $ 931 |  | 923 |  |  |  | 923 | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent | 2,339 |  |  |  |  |  |  |  |  |  | 940 | 940 |  |  | 923 |  |  |  |  |  |  |  | $ 497 |  | 355 | $ 142 | $ 494 |  | 351 | $ 143 |  | $ 129 |  |  | 129 | $ 222 |  |  | 222 |
Other comprehensive (loss) income, net of tax | (245) |  |  |  | (228) | (1) | (5) | (1) | (235) | (10) | 2 |  | 1 | $ 1 | 0 |  |  | 2 | $ (1) | (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2) |  |  |  | (2)
Common stock issuances, including dividend reinvestment and employee benefits, shares |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances, including dividend reinvestment and employee benefits | $ 48 |  | 48 |  |  |  |  |  | 48 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase, Shares | (19,800,000) | (20,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase | $ (1,500) |  | (1,500) |  |  |  |  |  | (1,500) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends | (1,685) |  |  | (1,685) |  |  |  |  | (1,685) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (350) |  | (350) |  |  | (149) |  | (149) |  | (150) |  |  | (150) |
Distributions to parent |  |  |  |  |  |  |  |  |  |  | (401) | (401) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (350) |  |  | (350) |  |  |  |  |  |  |  |  |  |
Distributions to noncontrolling interest in subsidiaries | (7) |  |  |  |  |  |  |  |  | (7) |  |  |  |  | (4) |  |  |  |  |  |  | (4) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other | 9 |  |  | (10) |  |  |  |  | (10) | 19 |  |  |  |  | 1 |  | (2) |  |  |  | (2) | 3 |  | $ (2,159) | $ (4,063) | 6,222 |  | $ (1,762) | $ (3,461) | 5,223 |  |  |  |  |  |  |  |  |  |
Contributions from parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 625 | 625 |  |  |  |  | 625 |  | 625 |  |  | 625 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution of membership interest of Duke Energy SAM, LLC to parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,912) |  | (1,912) |  |  |  |  |  |
Balance at Sep. 30, 2015 | $ 39,868 | $ 1 | $ 37,953 | $ 2,656 | $ (667) | $ (60) | $ (2) | $ (49) | $ 39,832 | $ 36 |  |  |  |  | $ 12,729 | $ 8,092 | $ 4,703 | $ (33) |  | $ (8) | $ 12,754 | $ (25) |  |  |  |  |  |  |  |  |  | $ 2,742 | $ 762 | $ 2,721 | $ (741) | $ 3,918 | $ 1 | $ 1,384 | $ 2,532 | $ 1
Balance, in shares at Sep. 30, 2015 | 688,000,000 | 688,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 89,663,086 |  |  |  | 53,913,701 |  |  |  |
Ending member's equity at Sep. 30, 2015 |  |  |  |  |  |  |  |  |  |  | $ 11,465 | $ 11,476 | $ (11) |  |  |  |  |  |  |  |  |  | $ 6,989 |  |  | $ 6,989 | $ 5,016 |  |  | $ 5,016 |  |  |  |  |  |  |  |  |  |

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