2.4.0.8031201 - Disclosure - Earnings Per Share (Tables)truefalsefalse1false
falsefalseFROM_Apr01_2013_TO_Jun30_2013http://www.sec.gov/CIK0001326160duration2013-04-01T00:00:002013-06-30T00:00:002false
falsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0001326160duration2013-01-01T00:00:002013-06-30T00:00:001true
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4us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 4px"><td style="width: 20px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 442px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:442px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(In millions, except per-share amounts)</font></td><td colspan="2" style="width: 62px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:62px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">Income</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 62px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:62px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">Average
Shares</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">EPS</font></td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Three Months Ended June 30, 2013</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic and diluted</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 340</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 706</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 0.48</font></td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Three Months Ended June 30, 2012</font></td><td style="width: 12px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic and diluted</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 444</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 446</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 0.99</font></td></tr><tr style="height: 12px"><td style="width: 20px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 442px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:442px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr></table></div>falsefalsefalse | 2falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 4px"><td style="width: 20px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 442px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:442px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(In millions, except per-share amounts)</font></td><td colspan="2" style="width: 62px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:62px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">Income</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td colspan="2" style="width: 62px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:62px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">Average
Shares</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">EPS</font></td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Six Months Ended June 30, 2013</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 969</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 705</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 1.37</font></td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Effect of dilutive securities:</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Stock options, performance and restricted stock</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> ―</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 1</font></td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; text-align:left;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — diluted</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 969</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 706</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:12px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 1.37</font></td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:462px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Six Months Ended June 30, 2012</font></td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 12px"><td colspan="2" style="width: 462px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:462px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Income from continuing operations attributable to Duke Energy common shareholders, as adjusted for participating securities — basic and diluted</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:12px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 736</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 446</font></td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;background-color:#CEE8E6;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:12px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;background-color:#CEE8E6;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> 1.65</font></td></tr><tr style="height: 12px"><td style="width: 20px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 442px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:442px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:12px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr></table></div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the effect of income (loss) on basic earnings per share.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
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