v2.4.0.8

Common Stock (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Common Stock [Line Items] |  |  |  |  |  |
Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic and diluted | $ 888 | $ 942 | $ 2,356 |  | $ 1,890 |
Average shares, basic | 707 | 706 | 707 |  | 706 |
Average shares, diluted | 707 | 706 | 707 |  | 706 |
EPS, basic (usd per share) | $ 1.25 | $ 1.33 | $ 3.33 |  | $ 2.67 |
EPS, diluted (usd per share) | $ 1.25 | $ 1.33 | $ 3.33 |  | $ 2.67 |
Common Class A [Member] |  |  |  |  |  |
Common Stock [Line Items] |  |  |  |  |  |
Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic and diluted | $ 887 | $ 942 | $ 2,351 |  | $ 1,884 |
Average shares, basic | 707 | 706 | 707 |  | 706 |
Average shares, diluted | 707 | 706 | 707 |  | 706 |
EPS, basic (usd per share) | $ 1.25 | $ 1.33 | $ 3.33 |  | $ 2.67 |
EPS, diluted (usd per share) | $ 1.25 | $ 1.33 | $ 3.33 |  | $ 2.67 |
Number of stock options and performance and unvested stock awards excluded from the dilutive securities calculation |  |  | 2 | [1] | 2 | [1]
Dividends declared per share (usd per share) | $ 0.795 | $ 0.78 | $ 2.355 |  | $ 2.31 |
[1] | Stock options and performance and unvested stock awards were not included in the dilutive securities calculation because either the option exercise prices were greater than the average market price of the common shares during those periods, or performance measures related to the awards had not yet been met.

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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4613673-111683 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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