1.0.0.3 false Earnings Per Share (Unaudited) false 1 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 2 Earnings Per Share Disclosure [Abstract] 0 bni_EarningsPerShareDisclosureAbstract bni false na duration string Earnings Per Share. false false false false false true false false false 1 false false 0 0 false false Earnings Per Share. false 3 Earnings Per Share 1 bni_EarningsPerShareTextBlock bni false na duration string This element may be used to capture the complete disclosure pertaining to an entity's earnings per share. false false false false false false false false false 1 false false 0 0  <html> <head></head> <body>  <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>8. Earnings Per Share</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     Basic earnings per share is based on the weighted average number of common shares outstanding. Diluted earnings per share is based on basic earnings per share adjusted for the effect of potential common shares outstanding that were dilutive during the period, arising from employee stock awards and incremental shares calculated using the treasury stock method. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     Weighted average stock options totaling 6.3 million and 5.5 million for the three and six months ended June 30, 2009, respectively, and 1.1 million and 1.6 million for the three and six months ended June 30, 2008, respectively, were not included in the computation of diluted earnings per share because the options’ exercise price exceeded the average market price of the Company’s stock for those periods. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The Company adopted Financial Accounting Standards Board (FASB) Staff Position No. EITF 03-6-1, <i>Determining Whether Instruments Granted in Share-Based Payment Transactions Are Participating Securities </i>(FSP EITF 03-6-1). FSP EITF 03-6-1 requires non-vested shares that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) to be considered participating securities, and therefore are included in computing earnings per share using the two-class method. The Company has retroactively applied the provisions of FSP EITF 03-6-1 to the financial information included herein, which resulted in a $2 million decrease in net income available to common stockholders for the three months ended June 30, 2009 and 2008, and a $2 million and $3 million decrease in net income available to common stockholders for the six months ended June 30, 2009 and 2008, respectively. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The following table is a reconciliation of net income available to common stockholders used in the basic and diluted EPS computations for the three months and six months ended June 30, 2009 and 2008 (in millions, except per share amounts): </div> <div align="center"> <table style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="52%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6"><b>Three Months Ended</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6"><b>Six Months Ended</b></td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>June 30,</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>June 30,</b></td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2009</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2008</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2009</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2008</b></td> <td> </td> </tr>   <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Income Statement: </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Net income </div></td> <td> </td> <td align="left">$</td> <td align="right">404</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">350</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">697</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">805</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Net income allocated to participating securities </div></td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(2</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(2</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(2</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(3</td> <td nowrap="nowrap">)</td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:30px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:45px; text-indent:-15px">Net income available to common stockholders </div></td> <td> </td> <td align="left">$</td> <td align="right">402</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">348</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">695</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">802</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:30px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Average Shares: </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Basic </div></td> <td> </td> <td> </td> <td align="right">339.8</td> <td> </td> <td> </td> <td> </td> <td align="right">344.9</td> <td> </td> <td> </td> <td> </td> <td align="right">339.6</td> <td> </td> <td> </td> <td> </td> <td align="right">345.6</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Diluted </div></td> <td> </td> <td> </td> <td align="right">341.9</td> <td> </td> <td> </td> <td> </td> <td align="right">349.2</td> <td> </td> <td> </td> <td> </td> <td align="right">341.9</td> <td> </td> <td> </td> <td> </td> <td align="right">350.2</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:30px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Earnings Per Share: </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Basic </div></td> <td> </td> <td align="left">$</td> <td align="right">1.18</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">1.01</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">2.05</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">2.32</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Diluted </div></td> <td> </td> <td align="left">$</td> <td align="right">1.18</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">1.00</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">2.03</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">2.29</td> <td> </td> </tr>  </table> </div> </div> </body> </html>  8. Earnings Per Share      Basic earnings per share is false false This element may be used to capture the complete disclosure pertaining to an entity's earnings per share. No authoritative reference available. false false 1 2 false UnKnown UnKnown UnKnown false true