2.2.0.25falsefalse31303 - Disclosure - Stock-Based Compensation (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) / shares USD ($) $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000936468duration2010-01-01T00:00:002010-12-31T00:00:00Unit13Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit14Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2true0us-gaap_ShareBasedCompensationAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0lmt_ScheduleOfStockBasedCompensationStockOptionTextBlocklmtfalsenadurationSchedule Of Stock Based Compensation Stock Option [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="57%"> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom">&nbsp;<font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Number of<br />Stock</i></font></p> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Options</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>(In&nbsp;thousands)</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Weighted<br />Average<br />Exercise</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Price</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Weighted<br />Average<br />Remaining<br />Contractual<br />Life</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>(In years)</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Aggregate<br />Intrinsic<br />Value</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>(In&nbsp;millions)</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Outstanding at December&nbsp;31, 2009</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">22,550</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">74.04</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Granted</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,588</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">74.93</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Exercised</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,405</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">)&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">41.65</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Terminated</font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(236</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">)&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">87.29</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>Outstanding at December&nbsp;31, 2010</b></font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>24,497</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>75.90</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>5.9</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>$</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>137.0</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr> <tr><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>Vested and unvested-expected-to-vest at December&nbsp;31, 2010</b></font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>24,391</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>75.89</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>5.9</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>137.0</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr> <tr bgcolor="#cceeff"><td style="border-bottom: #000000 2px solid;" valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>Vested at December&nbsp;31, 2010</b></font></p></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>16,943</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>72.88</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>4.8</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>137.0</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr></table> </div>&nbsp;&nbsp; &nbsp;&nbsp; NumberfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Stock Based Compensation Stock Option [Text Block]No authoritative reference available.falsefalse4false0lmt_ScheduleOfInformationRelatedToStockOptionsTextBlocklmtfalsenadurationSchedule of information related to stock options [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="74%"> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>&nbsp;&nbsp;&nbsp;&nbsp;(In millions, except for grant-date fair value of stock options)</i></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><b><i>2010</i></b></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>2009</i></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>2008</i></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr><td height="8"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Weighted average grant-date fair value of stock options granted</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>$</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>14.05</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">14.91</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">19.31</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Aggregate fair value of all the stock options that vested</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>71</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">72</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">78</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td style="border-bottom: #000000 2px solid;" valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Aggregate intrinsic value of all of the stock options exercised</font></p></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>50</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">37</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">263</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr></table> </div>&nbsp;&nbsp;&nbsp;&nbsp;(In millions, except for grant-date fair value of stockfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule of information related to stock options [Text Block]No authoritative reference available.falsefalse5false0lmt_ScheduleOfStockBasedCompensationBlackScholesOptionPricingTextBlocklmtfalsenadurationSchedule Of Stock Based Compensation Black Scholes Option Pricing [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="73%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom">&nbsp;<font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><b><i>2010</i></b></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>2009</i></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>2008</i></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr><td height="8"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Risk-free interest rate</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>2.49</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>%&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1.69</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">%&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2.83</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">%&nbsp;</font></td></tr> <tr><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Dividend yield</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>3.40</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>%&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2.30</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">%&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1.70</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">%&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Volatility factors</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>0.272</b></font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0.244</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0.195</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td style="border-bottom: #000000 2px solid;" valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Expected option life</font></p></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>5&nbsp;years</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">5&nbsp;years</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">5&nbsp;years</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr></table> </div>&nbsp;&nbsp; &nbsp;&nbsp; 2010 &nbsp; &nbsp; 2009 &nbsp; &nbsp; 2008 &nbsp; Risk-free interestfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Stock Based Compensation Black Scholes Option Pricing [Text Block]No authoritative reference available.falsefalse6false0lmt_ScheduleOfStockBasedCompensationActivityRelatedToNonvestedRsusAndRsasTextBlocklmtfalsenadurationSchedule Of Stock Based Compensation Activity Related To Nonvested RSUs And RSAs [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align ="center"> <tr><td width="70%"> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="11%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="bottom">&nbsp;<font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Number&nbsp;of&nbsp;RSUs</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>(In thousands)</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"> <p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Weighted&nbsp;Average<br />Grant-Date Fair</i></font></p> <p style="margin-top: 0px; margin-bottom: 1px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><i>Value Per Share</i></font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Nonvested at December 31, 2009</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,969</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">91.06</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Granted</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,943</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">74.68</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Vested</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(971</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">)&nbsp;</font></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">92.85</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr><td style="border-bottom: #000000 1px solid;" valign="top"> <p style="margin-left: 2em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Terminated</font></p></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(185</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">)&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">82.84</font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr> <tr bgcolor="#cceeff"><td style="border-bottom: #000000 2px solid;" valign="top"> <p style="margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Nonvested at December 31, 2010</font></p></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,756</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font class="_mt" size="1">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">82.53</font></td> <td style="border-bottom: #000000 2px solid;" valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">&nbsp;&nbsp;</font></td></tr></table> </div>&nbsp;&nbsp; &nbsp;&nbsp; Number&nbsp;of&nbsp;RSUs (In thousands) &nbsp; &nbsp; Weighted&nbsp;AverageGrant-Date Fair Value Per Share &nbsp; NonvestedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Stock Based Compensation Activity Related To Nonvested RSUs And RSAs [Text Block]No authoritative reference available.falsefalse15Stock-Based Compensation (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue