1.0.0.3 false Earnings Per Share false 1 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Unit1 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 2 Earnings Per Share [Abstract] 0 esv_EarningsPerShare esv false na duration string Earnings Per Share [Abstract] false false false false false true false false false 1 false false 0 0 false false Earnings Per Share [Abstract] false 3 Earnings Per Share 1 us-gaap_EarningsPerShareTextBlock us-gaap true na duration string No definition available. false false false false false false false false false 1 false false 0 0 <div><div><h2 style="margin-right: 0in; margin-left: 0in; font-size: 18.0pt; font-family: 'Times New Roman','serif'; font-weight: bold;"><a name="_AUCb75370ae526a417abd01ccb4138a9c34">Note 3 - Earnings Per Share</a></h2>        On January 1, 2009, we adopted certain provisions of FASB ASC 260-10-45 (previously FASB Staff Position EITF 03-6-1, "Determining Whether Instruments Granted in Share-Based Payment Transactions are Participating Securities"). This standard addresses whether instruments granted in share-based payment transactions are participating securities prior to vesting and, therefore, need to be included in the earnings allocation in computing earnings per share ("EPS") under the two-class method. Non-vested share awards granted to our employees and non-employee directors contain nonforfeitable dividend rights and, therefore, are now considered participating securities. We have prepared our current period basic and diluted EPS computations and retrospectively revised our comparative prior period computations to exclude net income allocated to non-vested share awards.        The following table is a reconciliation of net income attributable to Ensco common shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2009 and 2008 (in millions):   <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="line-height: 115%; font-size: 11.0pt; font-family: 'Calibri','sans-serif'; border-collapse: separate;"> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">             Three Months </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">            Nine Months </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">      Ended September 30, </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">     Ended September 30, </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">       2009  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">       2008  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">       2009  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">         2008  </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> </tr> <tr> <td width="46%" valign="bottom" style="width: 46.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> Net income attributable to Ensco </td> <td width="2" valign="bottom" style="width: 1.5pt; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$149.7 </td> <td width="6%" valign="bottom" style="width: 6.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$282.3 </td> <td width="4%" valign="bottom" style="width: 4.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$570.7 </td> <td width="4%" valign="bottom" style="width: 4.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="9%" valign="bottom" style="width: 9.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$851.0 </td> <td width="2%" valign="bottom" style="width: 2.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> </tr> <tr> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> Net income allocated to non-vested share awards </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">(1.9 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> ) </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">(3.5 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> ) </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">(7.0 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> ) </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">(8.9 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> ) </td> </tr> <tr> <td colspan="10" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <div class="MsoNormal" align="center" style="margin: 0in; margin-bottom: .0001pt; font-size: 12.0pt; font-family: 'Times New Roman','serif'; text-align: center;"> <hr size="1" width="100%" style="color: #ACA899;" align="center" /></div> </td> </tr> <tr> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> Net income attributable to Ensco common shares </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$147.8 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$278.8 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$563.7 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">$842.1 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> </tr> <tr> <td colspan="10" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <div class="MsoNormal" align="center" style="margin: 0in; margin-bottom: .0001pt; font-size: 12.0pt; font-family: 'Times New Roman','serif'; text-align: center;"> <hr size="3" width="100%" style="color: #ACA899;" align="center" /></div> </td> </tr> </table>          The following table is a reconciliation of the weighted-average common shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2009 and 2008 (in millions):   <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="line-height: 115%; font-size: 11.0pt; font-family: 'Calibri','sans-serif'; border-collapse: separate;"> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">             Three Months </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">              Nine Months </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">       Ended September 30, </td> <td colspan="4" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">      Ended September 30, </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">        2009  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">        2008  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">        2009  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">         2008  </td> </tr> <tr> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> <td colspan="2" valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="center" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: center; white-space: nowrap;">  </td> </tr> <tr> <td width="46%" valign="bottom" style="width: 46.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> Weighted-average common shares - basic </td> <td width="2" valign="bottom" style="width: 1.5pt; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">140.7 </td> <td width="6%" valign="bottom" style="width: 6.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">141.1 </td> <td width="4%" valign="bottom" style="width: 4.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="8%" valign="bottom" style="width: 8.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">140.3 </td> <td width="4%" valign="bottom" style="width: 4.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td width="9%" valign="bottom" style="width: 9.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">142.2  </td> <td width="2%" valign="bottom" style="width: 2.0%; background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> </tr> <tr> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> Potentially dilutive share options </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">.0 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">.3 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">.1 </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">.4  </td> <td valign="bottom" style="padding: 0in 0in 0in 0in; border-top: 0px;">   </td> </tr> <tr> <td colspan="10" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <div class="MsoNormal" align="center" style="margin: 0in; margin-bottom: .0001pt; font-size: 12.0pt; font-family: 'Times New Roman','serif'; text-align: center;"> <hr size="1" width="100%" style="color: #ACA899;" align="center" /></div> </td> </tr> <tr> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> Weighted-average common shares - diluted </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">140.7 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">141.4 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">140.4 </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;"> <p class="MsoNormal" align="right" style="margin-right: 0in; margin-left: 0in; font-size: 12.0pt; font-family: 'Times New Roman','serif'; margin: 0in; margin-bottom: .0001pt; text-align: right; white-space: nowrap;">142.6  </td> <td valign="bottom" style="background: #CCEEFF; padding: 0in 0in 0in 0in; border-top: 0px;">   </td> </tr> <tr> <td colspan="10" style="padding: 0in 0in 0in 0in; border-top: 0px;"> <div class="MsoNormal" align="center" style="margin: 0in; margin-bottom: .0001pt; font-size: 12.0pt; font-family: 'Times New Roman','serif'; text-align: center;"> <hr size="3" width="100%" style="color: #ACA899;" align="center" /></div> </td> </tr> </table>          Antidilutive share options totaling 1.1 million and 361,000 were excluded from the computation of diluted EPS during the three-month periods ended September 30, 2009 and 2008, respectively. Antidilutive share options totaling 1.3 million and 546,000 were excluded from the computation of diluted EPS during the nine-month periods ended September 30, 2009 and 2008, respectively.</div></div> Note 3 - Earnings Per Share        On January 1, 2009, we adopted certain provisions of FASB ASC 260-10-45 (previously FASB false false No definition available. No authoritative reference available. false false 1 2 false UnKnown UnKnown UnKnown false true