2.2.0.25falsefalse30303 - Disclosure - Available-for-Sale Investments (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000024741duration2010-01-01T00:00:002010-12-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $Duration_1_1_2009_To_12_31_2009http://www.sec.gov/CIK0000024741duration2009-01-01T00:00:002009-12-31T00:00:00Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0glw_AvailableForSaleInvestmentsAbstractglwfalsenadurationAvailable-for-Sale Investments [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringAvailable-for-Sale Investments [Abstract]falsefalseAvailable-for-Sale Investments3false0glw_SummaryOfContractualMaturitiesOfAvailableForSaleSecuritiesglwfalsenadurationSummary of Contractual Maturities of Available-for-Sale Securitiesfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00<div> <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="93%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -0.5em; margin-left: 0.5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Less than one year</font></p></td> <td valign="bottom"><font class="_mt" size="1">&nbsp;&nbsp;</font></td> <td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>$</b></font></td> <td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;1,501</b></font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr> <tr><td valign="top"> <p style="text-indent: -0.5em; margin-left: 0.5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Due in 1-5 years</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>242</b></font></td> <td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr> <tr bgcolor="#cceeff"><td valign="top"> <p style="text-indent: -0.5em; margin-left: 0.5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Due in 5-10 years</font></p></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="bottom"> <p style="text-indent: -0.5em; margin-left: 0.5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Due after 10 years&nbsp;</font><font style="font-family: Times New Roman;" class="_mt" size="1">(1)</font><font style="font-family: Times New Roman;" class="_mt" size="2"> </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"><b>&nbsp;</b></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>54</b></font></td> <td style="border-bottom: #000000 1px solid;" valign="bottom" nowrap="nowrap"><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="text-indent: -0.5em; margin-left: 1.5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Total</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="top"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>$</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="top" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>1,797</b></font></td> <td style="border-bottom: #000000 2px solid;" valign="top" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>&nbsp;&nbsp;</b></font></td></tr></table> <p style="margin-top: 0px; margin-bottom: 0px; font-size: 3px;">&nbsp;</p> <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td valign="top" width="3%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="1">(1)</font></td> <td valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="1">Included in the maturity table is $45 million of asset-based securities that mature over time and are being reported at their final maturity dates.</font></td></tr></table> </div>Less than one year &nbsp;&nbsp; $ &nbsp;1,501 &nbsp;&nbsp; Due in 1-5 years &nbsp;&nbsp; &nbsp; 242 &nbsp;&nbsp; Due in 5-10 years &nbsp;&nbsp; Duefalsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSummary of Contractual Maturities of Available-for-Sale SecuritiesNo authoritative reference available.falsefalseSummary of Contractual Maturities of Available-for-Sale Securities4false0glw_SummaryOfFairValueOfAvailableForSaleInvestmentsglwfalsenadurationSummary of Fair Value of Available-for-Sale Investments - Tablefalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><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> </td> <td> </td></tr> <tr valign="bottom"><td colspan="3" align="right"> </td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td colspan="9" align="left">&nbsp;</td> <td style="text-indent: 3px;" colspan="4" align="left"><font class="_mt" size="2">Amortized cost</font></td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td colspan="3" align="right"><font class="_mt" size="2">Fair value</font></td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" colspan="3" align="right"><font class="_mt" size="2">December 31,</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" colspan="4" align="right"><font class="_mt" size="2">December 31,</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="center"><b><font class="_mt" size="2">2010</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2009</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">2010</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="center"><font class="_mt" size="2">2009</font></td></tr> <tr valign="bottom"><td style="text-indent: 1px;" colspan="2" align="left"><font class="_mt" size="2">Bonds, notes and other securities:</font></td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="text-indent: 1px;" colspan="2" align="left"><font class="_mt" size="2">U.S. government and agencies</font></td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="right"><b><font class="_mt" size="2">$</font></b></td> <td align="left">&nbsp;</td> <td style="text-indent: 2px;" colspan="2" align="left"><b><font class="_mt" size="2">1,734</font></b></td> <td align="right"><font class="_mt" size="2">$</font></td> <td align="right"><font class="_mt" size="2">973</font></td> <td align="left">&nbsp;</td> <td align="left"><b><font class="_mt" size="2">$</font></b></td> <td align="right"><b><font class="_mt" size="2">1,737</font></b></td> <td align="left">&nbsp;</td> <td align="left"><font class="_mt" size="2">$</font></td> <td align="right"><font class="_mt" size="2">975</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">Other debt securities</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">11</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">66</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">15</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">67</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 4px;" colspan="2" align="left"><font class="_mt" size="2">Total short-term investments</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" colspan="2" align="left"><b><font class="_mt" size="2">1,745</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">1,039</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">1,752</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">1,042</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">Asset-backed securities</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">64</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">75</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">45</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">42</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 4px;" colspan="2" align="left"><font class="_mt" size="2">Total long-term investments</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">64</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">75</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">45</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">42</font></td></tr></table> </div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Amortized cost &nbsp; &nbsp; Fairfalsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSummary of Fair Value of Available-for-Sale Investments - TableNo authoritative reference available.falsefalseSummary of Fair Value of Available-for-Sale Investments5false0glw_FairValueAndGrossUnrealizedLossesOfInvestmentsByLengthOfTimeInContinuousUnrealizedLossPositionglwfalsenadurationFair Value and Gross Unrealized Losses of Investments by Length of Time In Continuous Unrealized Loss Position - Tablefalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00<div> <div style="padding-left: 0%; width: 100%; padding-right: 0%;"> <div align="left"> <table border="0" cellspacing="0"> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" colspan="3" align="right"><font class="_mt" size="2">December 31, 2010</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" colspan="2" align="left"><font class="_mt" size="2">Less than 12 months</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" colspan="3" align="right"><font class="_mt" size="2">12 months or greater</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="center"><font class="_mt" size="2">Total</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td align="right">&nbsp;</td> <td style="text-indent: 1px;" align="left"><font class="_mt" size="2">Fair</font></td> <td style="text-indent: 1px;" colspan="3" align="left"><font class="_mt" size="2">Unrealized Fair</font></td> <td colspan="2" align="right"><font class="_mt" size="2">Unrealized</font></td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="center"><font class="_mt" size="2">Fair</font></td> <td align="left">&nbsp;</td> <td style="text-indent: 3px;" colspan="3" align="left"><font class="_mt" size="2">Unrealized</font></td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">U.S. government and agencies</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">139</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">139</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 5px;" align="left"><font class="_mt" size="2">Total short-term investments</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">139</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">139</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">Asset-backed securities</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">45</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(20</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">)</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">45</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(20</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">)</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 3px double; text-indent: 5px;" align="left"><font class="_mt" size="2">Total long-term investments</font></td> <td style="border-bottom: #000000 3px double;" align="right">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">45</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">(20</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">)</font></td> <td style="border-bottom: #000000 3px double; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">45</font></td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">(20</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">)</font></td></tr> <tr><td colspan="16">&nbsp;</td></tr></table></div></div> </div>December 31, 2010 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Less than 12 months &nbsp; 12 months orfalsefalsefalsefalsefalse2falsefalsefalse00<div> <div style="padding-left: 0%; width: 100%; padding-right: 0%;"> <div align="left"> <table border="0" cellspacing="0"> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" colspan="3" align="right"><font class="_mt" size="2">December 31, 2009</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" colspan="2" align="left"><font class="_mt" size="2">Less than 12 months</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" colspan="3" align="right"><font class="_mt" size="2">12 months or greater</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="center"><font class="_mt" size="2">Total</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td align="right">&nbsp;</td> <td style="text-indent: 1px;" align="left"><font class="_mt" size="2">Fair</font></td> <td colspan="2" align="left"><font class="_mt" size="2">Unrealized</font></td> <td align="right"><font class="_mt" size="2">Fair</font></td> <td colspan="2" align="right"><font class="_mt" size="2">Unrealized</font></td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="center"><font class="_mt" size="2">Fair</font></td> <td align="left">&nbsp;</td> <td style="text-indent: 3px;" colspan="3" align="left"><font class="_mt" size="2">Unrealized</font></td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" align="center"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">value</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">losses</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">U.S. government and agencies</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">320</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">320</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 5px;" align="left"><font class="_mt" size="2">Total short-term investments</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left"><font class="_mt" size="2">320</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">320</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">Asset-backed securities</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">42</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(33</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">)</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">42</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(33</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">)</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 3px double; text-indent: 5px;" align="left"><font class="_mt" size="2">Total long-term investments</font></td> <td style="border-bottom: #000000 3px double;" align="right">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">42</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">(33</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">)</font></td> <td style="border-bottom: #000000 3px double; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">42</font></td> <td style="border-bottom: #000000 3px double;" align="left">&nbsp;</td> <td style="border-bottom: #000000 3px double; text-indent: 3px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 3px double;" align="right">&nbsp;</td> <td style="border-bottom: #000000 3px double;" align="right"><font class="_mt" size="2">(33</font></td> <td style="border-bottom: #000000 3px double;" align="left"><font class="_mt" size="2">)</font></td></tr> <tr><td colspan="16">&nbsp;</td></tr></table></div></div> </div>December 31, 2009 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Less than 12 months &nbsp; 12 months orfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringFair Value and Gross Unrealized Losses of Investments by Length of Time In Continuous Unrealized Loss Position - TableNo authoritative reference available.falsefalseFair Value and Gross Unrealized Losses of Investments by Length of Time In Continuous Unrealized Loss Position6false0glw_GrossRealizedGainsAndLossesTextBlockglwfalsenadurationGross Realized Gains And Losses [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div style="padding-left: 0%; width: 100%; padding-right: 0%;"> <div align="left"> <table border="0" cellspacing="0"> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" colspan="3" align="center"><font class="_mt" size="2">December 31,</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">2010</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2009</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2008</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td align="left"><font class="_mt" size="2">Gross realized gains</font></td> <td align="right">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td align="left">&nbsp;</td> <td style="text-indent: 4px;" align="left"><b><font class="_mt" size="2">$</font></b></td> <td align="right"><b><font class="_mt" size="2">0</font></b></td> <td align="left">&nbsp;</td> <td style="text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td align="right"><font class="_mt" size="2">2</font></td> <td align="left">&nbsp;</td> <td style="text-indent: 4px;" align="left"><font class="_mt" size="2">$</font></td> <td align="right">&nbsp;</td> <td align="right"><font class="_mt" size="2">6</font></td> <td align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">Gross realized losses</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">1</font></b></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(6</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">)</font></td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">(59)</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="1">(1</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="1">)</font></td></tr></table></div> <p style="margin: 0px;">&nbsp;</p> <table border="0" cellspacing="0"> <tr><td valign="top" width="2%" nowrap="nowrap"><font class="_mt" size="1">(1)</font>&nbsp; &nbsp; &nbsp; </td> <td width="98%"> <p align="justify"><font class="_mt" size="1">Realized losses in 2008 include other-than-temporary impairments of $37 million for financial industry securities and $22 million of losses from the sale of asset-backed debt securities and debt securities of financial institutions as Corning reduced its exposure to these sectors.</font></p></td></tr></table></div> </div>December 31, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2010 &nbsp; &nbsp; 2009 &nbsp; &nbsp; &nbsp; 2008 &nbsp; Gross realizedfalsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringGross Realized Gains And Losses [Text Block]No authoritative reference available.falsefalseGross realized gains and losses7false0glw_ReconciliationOfChangesInCreditLossesRecognizedInEarningsglwfalsenadurationReconciliation of the Changes in Credit Losses Recognized in Earningsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="63%"> </td> <td width="2%"> </td> <td width="20%"> </td> <td width="2%"> </td> <td width="7%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td align="left">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="center"><b><font class="_mt" size="2">2010</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2009</font></td> <td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">*</font></td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">Beginning balance of credit losses, January 1</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">2</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">0</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 5px;" align="left"><font class="_mt" size="2">Additions for credit losses not previously recognized in earnings</font></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">2</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right">&nbsp;</td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"><font class="_mt" size="2">Balance of credit losses, December 31</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">$</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><b><font class="_mt" size="2">4</font></b></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">$</font></td> <td style="border-bottom: #000000 1px solid;" align="right"><font class="_mt" size="2">2</font></td> <td style="border-bottom: #000000 1px solid;" align="left">&nbsp;</td></tr></table> </div>&nbsp; &nbsp; 2010 &nbsp; 2009 * Beginning balance of credit losses, January 1 $ 2 $ 0 &nbsp; Additions for credit losses not previously recognized infalsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringReconciliation of the Changes in Credit Losses Recognized in EarningsNo authoritative reference available.falsefalseReconciliation of the Changes in Credit Losses Recognized in Earnings26Available-for-Sale Investments (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue