1.0.0.3 false Earnings Per Share false 1 $ false false shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 usd Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 usdPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 2 NOTES TO FINANCIAL STATEMENTS 0 ceg_NotesToFinancialStatementsAbstract ceg false na duration string Notes To Financial Statements [Abstract] false false false false false true false false false 1 false false 0 0 false false Notes To Financial Statements [Abstract] false 3 Earnings Per Share 1 us-gaap_EarningsPerSharePolicyTextBlock us-gaap true na duration string No definition available. false false false false false false false false false 1 false false 0 0 <table style="font-size:10pt; font-family:'Times New Roman',times,serif;"> <tr> <td> Earnings Per Share Basic earnings per common share (EPS) is computed by dividing net income (loss) attributable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution of common stock equivalent shares that could occur if securities or other contracts to issue common stock were exercised or converted into common stock.         Our dilutive common stock equivalent shares consist of stock options and other stock-based compensation awards. The following table presents stock options that were not dilutive and were excluded from the computation of diluted EPS in each period, as well as the dilutive common stock equivalent shares: <div style="PADDING-RIGHT: 0pt; PADDING-LEFT: 0pt; PADDING-BOTTOM: 0pt; MARGIN-LEFT: 10%; WIDTH: 80%; PADDING-TOP: 0pt; POSITION: relative">   <div align="center"> <table cellspacing="0" cellpadding="0" width="100%" border="0"> <tr style="HEIGHT: 0px"> <td style="FONT-FAMILY: times" align="left"></td> <td style="FONT-FAMILY: times" width="12"></td> <td style="FONT-FAMILY: times" align="right" width="6"></td> <td style="FONT-FAMILY: times" width="27"></td> <td style="FONT-FAMILY: times" width="18"></td> <td style="FONT-FAMILY: times" align="right" width="6"></td> <td style="FONT-FAMILY: times" width="27"></td> <td style="FONT-FAMILY: times" width="18"></td> <td style="FONT-FAMILY: times" align="right" width="6"></td> <td style="FONT-FAMILY: times" width="27"></td> <td style="FONT-FAMILY: times" width="18"></td> <td style="FONT-FAMILY: times" align="right" width="6"></td> <td style="FONT-FAMILY: times" width="27"></td> <td style="FONT-FAMILY: times" width="12"></td> </tr> <tr style="HEIGHT: 0px" valign="bottom"> <th style="FONT-FAMILY: times" align="left">   </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="5"> Quarter Ended September 30, </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="5"> Nine Months Ended September 30, </th> <th style="FONT-FAMILY: times">  </th></tr> <tr style="HEIGHT: 0px" valign="bottom"> <th style="FONT-FAMILY: times" align="center">   </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="2"> 2009 </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="2"> 2008 </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="2"> 2009 </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="2"> 2008 </th> <th style="FONT-FAMILY: times">  </th></tr> <tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="bottom"> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="13"> </th> <th style="FONT-FAMILY: times"> </th></tr> <tr style="HEIGHT: 0px" valign="bottom"> <th style="FONT-FAMILY: times" align="left">   </th> <th style="FONT-FAMILY: times"> </th> <th style="FONT-FAMILY: times" align="center" colspan="11"> (In millions) </th> <th style="FONT-FAMILY: times">  </th></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> Non-dilutive stock options</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 4.7</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 2.6</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 5.2</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 1.5</td> <td style="FONT-FAMILY: times">  </td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> Dilutive common stock equivalent shares</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 1.2</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 1.1</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 0.8</td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times"> </td> <td style="FONT-FAMILY: times" align="right"> 1.7</td> <td style="FONT-FAMILY: times">  </td></tr> <tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"> <td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" colspan="13"> </td> <td style="FONT-FAMILY: times" valign="bottom">  </td></tr></table></div> </div> As a result of the Company incurring a loss for the three months ended September 30, 2008, dilutive common stock equivalent shares were not included in calculating diluted EPS.         We issued to MidAmerican 19,897,322 shares of Constellation Energy's common stock upon the conversion of the Series A Preferred Stock, which occurred upon the termination of the merger agreement with MidAmerican on December 17, 2008. We discuss the conversion feature of the Series A Preferred Stock in more detail in Note 9 of our 2008 Annual Report on Form 10-K. These additional shares impacted our earnings per share for the quarter and nine months ended September 30, 2009.</td></tr></table> Earnings Per Share Basic earnings per common share (EPS) is computed by dividing net income (loss) attributable to common stock by the weighted-average number false false No definition available. No authoritative reference available. false false 1 2 false UnKnown UnKnown UnKnown false true