2.2.0.25falsefalse31303 - Disclosure - Employee Retirement Plans (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$2true0glw_EmployeeRetirementPlansAbstractglwfalsenadurationEmployee Retirement Plans [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringEmployee Retirement Plans [Abstract]falsefalseEmployee Retirement Plans3false0glw_ScheduleOfChangeInBenefitObligationAndFundedStatusOfOurEmployeeRetirmentPlansTextBlockglwfalsenadurationSchedule Of Change In Benefit Obligation And Funded Status Of Our Employee Retirment Plans [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="43%"> </td> <td width="2%"> </td> <td width="10%"> </td> <td width="2%"> </td> <td width="5%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="10%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="7%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 7px;" colspan="3" align="left">Pension benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" colspan="4" align="right">Postretirement benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">December 31,</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="13"> </td></tr> <tr valign="bottom"><td align="left">Change in benefit obligation</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Benefit obligation at beginning of year</td> <td align="right">$</td> <td align="right">2,791</td> <td align="left"> </td> <td align="left">$</td> <td align="right">2,601</td> <td align="left"> </td> <td align="right">$</td> <td align="right">928</td> <td align="left"> </td> <td align="right">$</td> <td align="right">843</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Service cost</td> <td align="right"> </td> <td align="right">46</td> <td align="left"> </td> <td align="left"> </td> <td align="right">46</td> <td align="left"> </td> <td align="right"> </td> <td align="right">12</td> <td align="left"> </td> <td align="right"> </td> <td align="right">11</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Interest cost</td> <td align="right"> </td> <td align="right">157</td> <td align="left"> </td> <td align="left"> </td> <td align="right">157</td> <td align="left"> </td> <td align="right"> </td> <td align="right">50</td> <td align="left"> </td> <td align="right"> </td> <td align="right">51</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Plan participants' contributions</td> <td align="right"> </td> <td align="right">1</td> <td align="left"> </td> <td align="left"> </td> <td align="right">1</td> <td align="left"> </td> <td align="right"> </td> <td align="right">9</td> <td align="left"> </td> <td align="right"> </td> <td align="right">7</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Amendments</td> <td align="right"> </td> <td align="right">22</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="right">(31</td> <td align="left">)</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Curtailment loss</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">19</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="right">11</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Actuarial losses</td> <td align="right"> </td> <td align="right">163</td> <td align="left"> </td> <td align="left"> </td> <td align="right">112</td> <td align="left"> </td> <td align="right"> </td> <td align="right">77</td> <td align="left"> </td> <td align="right"> </td> <td align="right">67</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Special termination benefits</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">19</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="right">1</td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Other</td> <td align="right"> </td> <td align="right">9</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Benefits paid</td> <td align="right"> </td> <td align="right">(173</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(184</td> <td align="left">)</td> <td align="right"> </td> <td align="right">(75</td> <td align="left">)</td> <td align="right"> </td> <td align="right">(69</td> <td align="left">)</td></tr> <tr valign="bottom"><td align="left">Medicare subsidy received</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="right">6</td> <td align="left"> </td> <td align="right"> </td> <td align="right">6</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Foreign currency translation</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(8</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">20</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Benefit obligation at end of year</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">3,008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,791</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">976</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">928</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="13"> </td></tr> <tr valign="bottom"><td align="left">Change in plan assets</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Fair value of plan assets at beginning of year</td> <td align="right">$</td> <td align="right">2,270</td> <td align="left"> </td> <td align="left">$</td> <td align="right">2,043</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Actual gain on plan assets</td> <td align="right"> </td> <td align="right">233</td> <td align="left"> </td> <td align="left"> </td> <td align="right">288</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Employer contributions</td> <td align="right"> </td> <td align="right">367</td> <td align="left"> </td> <td align="left"> </td> <td align="right">101</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Acquisition (divestitures)</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Plan participants' contributions</td> <td align="right"> </td> <td align="right">1</td> <td align="left"> </td> <td align="left"> </td> <td align="right">1</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Benefits paid</td> <td align="right"> </td> <td align="right">(173</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(184</td> <td align="left">)</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Foreign currency translation</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(8</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">21</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Fair value of plan assets at end of year</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,690</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,270</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="13"> </td></tr> <tr valign="bottom"><td align="left">Funded status at end of year</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Fair value of plan assets</td> <td align="right">$</td> <td align="right">2,690</td> <td align="left"> </td> <td align="left">$</td> <td align="right">2,270</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Benefit obligations</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(3,008</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">(2,791</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(976</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(928</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Funded status of plans</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(318</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(521</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(976</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(928</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr> <tr><td colspan="13"> </td></tr> <tr valign="bottom"><td align="left">Amounts recognized in the consolidated balance sheets consist</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">of:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Noncurrent asset</td> <td align="right">$</td> <td align="right">21</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Current liability</td> <td align="right"> </td> <td align="right">(15</td> <td align="left">)</td> <td align="left">$</td> <td align="right">(9</td> <td align="left">)</td> <td align="right">$</td> <td align="right">(63</td> <td align="left">)</td> <td align="right">$</td> <td align="right">(70</td> <td align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">Noncurrent liability</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(324</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(512</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(913</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(858</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Recognized (liability) asset</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(318</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(521</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(976</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(928</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr> <tr><td colspan="13"> </td></tr> <tr valign="bottom"><td align="left">Amounts recognized in accumulated other comprehensive</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">income consist of:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Net actuarial loss</td> <td align="right">$</td> <td align="right">993</td> <td align="left"> </td> <td align="left">$</td> <td align="right">937</td> <td align="left"> </td> <td align="right">$</td> <td align="right">318</td> <td align="left"> </td> <td align="right">$</td> <td align="right">256</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Prior service cost (credit)</td> <td align="right"> </td> <td align="right">35</td> <td align="left"> </td> <td align="left"> </td> <td align="right">20</td> <td align="left"> </td> <td align="right"> </td> <td align="right">(41</td> <td align="left">)</td> <td align="right"> </td> <td align="right">(16</td> <td align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">Transition asset</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(1</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Amount recognized at end of year</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">1,028</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">956</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">277</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">240</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr></table> </div>                              Pension benefits       PostretirementfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Change In Benefit Obligation And Funded Status Of Our Employee Retirment Plans [Text Block]No authoritative reference available.falsefalseChange in benefit obligation and funded status of our employee retirement plans4false0glw_ScheduleOfProjectedBenefitObligationAndAccumulatedBenefitObligationForPensionPlansTextBlockglwfalsenadurationSchedule Of Projected Benefit Obligation And The Accumulated Benefit Obligation For Pension Plans [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div class="MetaData" align="left"> <table border="0" cellspacing="0"> <tr><td width="49%"> </td> <td width="2%"> </td> <td width="35%"> </td> <td width="2%"> </td> <td width="9%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 6px;" colspan="3" align="left">December 31,</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">2010</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">2009</td></tr> <tr><td colspan="5"> </td></tr> <tr valign="bottom"><td align="left">Projected benefit obligation</td> <td align="right">$</td> <td align="center">356</td> <td align="right">$</td> <td align="center">2,791</td></tr> <tr valign="bottom"><td align="left">Accumulated benefit obligation</td> <td align="right">$</td> <td align="center">330</td> <td align="right">$</td> <td align="center">2,677</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Fair value of plan assets</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">13</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">2,270</td></tr></table></div> </div>              December 31,     2010   2009   Projected benefit obligation $ 356 $ 2,791 AccumulatedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Projected Benefit Obligation And The Accumulated Benefit Obligation For Pension Plans [Text Block]No authoritative reference available.falsefalseProjected benefit obligation and the accumulated benefit obligation for pension plans5false0glw_NetPeriodicBenefitExpenseForEmployeeRetirementPlansglwfalsenadurationNet Periodic Benefit Expense For Employee Retirement Plansfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="27%"> </td> <td width="2%"> </td> <td width="5%"> </td> <td width="2%"> </td> <td width="4%"> </td> <td width="7%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="3%"> </td> <td width="5%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="10%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="2%"> </td> <td width="4%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" colspan="13" align="left">The components of net periodic benefit expense for our employee retirement plans follow (in millions):</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="center">Pension benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" colspan="6" align="right">Postretirement benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="20"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Service cost</td> <td align="left">$</td> <td align="right">46</td> <td align="left"> </td> <td style="text-indent: 4px;" align="left">$</td> <td align="right">46</td> <td align="left"> </td> <td align="right"> </td> <td align="left">$</td> <td align="right">51</td> <td align="left"> </td> <td align="right">$</td> <td align="right">12</td> <td align="left"> </td> <td align="left">$</td> <td align="right">11</td> <td align="left"> </td> <td align="right">$</td> <td align="right">12</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Interest cost</td> <td align="left"> </td> <td align="right">157</td> <td align="left"> </td> <td align="left"> </td> <td align="right">157</td> <td align="left"> </td> <td align="right"> </td> <td colspan="2" align="right">150</td> <td align="left"> </td> <td align="right"> </td> <td align="right">50</td> <td align="left"> </td> <td align="left"> </td> <td align="right">51</td> <td align="left"> </td> <td align="left"> </td> <td align="right">47</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Expected return on plan assets</td> <td align="left"> </td> <td align="right">(168</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(179</td> <td align="left">)</td> <td align="right"> </td> <td colspan="2" align="right">(196</td> <td align="left">)</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Amortization of net loss</td> <td align="left"> </td> <td align="right">50</td> <td align="left"> </td> <td align="left"> </td> <td align="right">31</td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="right">14</td> <td align="left"> </td> <td align="right"> </td> <td align="right">15</td> <td align="left"> </td> <td align="left"> </td> <td align="right">11</td> <td align="left"> </td> <td align="left"> </td> <td align="right">8</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Amortization of prior service cost</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">(credit)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">9</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">8</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">10</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(6</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(3</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(3</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left">Total periodic benefit expense</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">94</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">63</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">29</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">71</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">70</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">64</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left">Curtailment charge</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(1</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">22</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">10</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 1px;" align="left">Total expense</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">93</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">85</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">29</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">71</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">80</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">64</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="20"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" colspan="8" align="left"> Other changes in plan assets and benefit obligations recognized in other comprehensive income:</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 4px;" align="left">Curtailment effects</td> <td align="left">$</td> <td align="right">1</td> <td align="left"> </td> <td style="text-indent: 4px;" align="left">$</td> <td align="right">(2</td> <td align="left">)</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left">$</td> <td align="right">2</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 4px;" align="left">Current year actuarial loss</td> <td align="left"> </td> <td align="right">106</td> <td align="left"> </td> <td align="left"> </td> <td align="right">2</td> <td align="left"> </td> <td align="right">$</td> <td colspan="2" align="right">615</td> <td align="left"> </td> <td align="right">$</td> <td align="right">77</td> <td align="left"> </td> <td align="left"> </td> <td align="right">66</td> <td align="left"> </td> <td align="right">$</td> <td align="right">36</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 4px;" align="left">Amortization of actuarial loss</td> <td align="left"> </td> <td align="right">(50</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(31</td> <td align="left">)</td> <td align="right"> </td> <td colspan="2" align="right">(14</td> <td align="left">)</td> <td align="right"> </td> <td align="right">(15</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(11</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(8</td> <td align="left">)</td></tr> <tr valign="bottom"><td style="text-indent: 4px;" align="left">Current year prior service (credit)/loss</td> <td align="left"> </td> <td align="right">23</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="right">(31</td> <td align="left">)</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 4px;" align="left">Amortization of prior service (cost)</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 5px;" align="left">credit</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(9</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(9</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">(10</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">6</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">3</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">3</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Total recognized in other comprehensive</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">income (loss)</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">71</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(40</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">591</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">37</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">60</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">31</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="20"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Total recognized in net periodic benefit</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">cost and other comprehensive income</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">164</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 4px;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">45</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">620</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">108</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">140</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">95</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr></table> </div>                                        The components offalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNet Periodic Benefit Expense For Employee Retirement PlansNo authoritative reference available.falsefalseNet periodic benefit expense for employee retirement plans6false0glw_ScheduleOfWeightedAverageAssumptionsUsedToDetermineBenefitObligationsTextBlockglwfalsenadurationSchedule Of Weighted Average Assumptions Used To Determine Benefit Obligations Text Blockfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="14%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="8%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="9%"> </td> <td width="2%"> </td> <td width="7%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="8%"> </td> <td width="2%"> </td> <td width="5%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" colspan="12" align="left">The weighted-average assumptions used to determine benefit obligations at December 31 follow:</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="7" align="center">Pension benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="5" align="right">Postretirement benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="5" align="center">Domestic</td> <td align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="5" align="center">International</td> <td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">Domestic</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Discount rate</td> <td align="right">5.25</td> <td align="left">%</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">6.00</td> <td align="left">%</td> <td align="right">4.75</td> <td align="left">%</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">5.12</td> <td align="left">%</td> <td align="right">5.25</td> <td align="left">%</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">6.00</td> <td align="left">%</td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Rate of compensation</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">increase</td> <td style="border-bottom: #000000 1px solid;" align="right">4.25</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.25</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">5.00</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.35</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.04</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.20</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr></table> </div>                                      The weighted-averagefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Weighted Average Assumptions Used To Determine Benefit Obligations Text BlockNo authoritative reference available.falsefalseWeighted-average assumptions used to determine benefit obligations7false0glw_ScheduleOfWeightedAverageAssumptionsUsedToDetermineNetPeriodicCostTextBlockglwfalsenadurationSchedule Of Weighted Average Assumptions Used To Determine Net Periodic Cost [falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="10%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="10%"> </td> <td width="2%"> </td> <td width="7%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="2%"> </td> <td width="9%"> </td> <td width="2%"> </td> <td width="5%"> </td> <td width="2%"> </td> <td width="5%"> </td> <td width="2%"> </td> <td width="14%"> </td> <td width="2%"> </td> <td width="3%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="3" align="center">Pension benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">Postretirement benefits</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">Domestic</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">International</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">Domestic</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2008</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Discount rate</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">6.00/6.25</td> <td align="left">%(1)</td> <td align="right">6.00</td> <td align="left">%</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">5.12</td> <td align="left">%</td> <td align="right">4.58</td> <td align="left">%</td> <td align="right">5.75</td> <td align="left">%</td> <td align="right">6.00/6.25</td> <td align="left">%(1)</td> <td align="right">6.00</td> <td align="left">%</td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Expected return</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">on plan assets</td> <td align="right">7.25</td> <td align="left">%</td> <td align="right">7.75</td> <td align="left">%</td> <td align="right">8.00</td> <td align="left">%</td> <td align="right">6.01</td> <td align="left">%</td> <td align="right">6.08</td> <td align="left">%</td> <td align="right">6.73</td> <td align="left">%</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 1px;" align="left">Rate of</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">compensation</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">increase</td> <td style="border-bottom: #000000 1px solid;" align="right">4.25</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">5.00</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">5.00</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.04</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">4.20</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="right">3.99</td> <td style="border-bottom: #000000 1px solid;" align="left">%</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="19"> </td></tr> <tr valign="bottom"><td colspan="16" align="left">(1) The discount rate at December 31, 2008 was 6.00%. At March 31, 2009 remeasurement date, the discount rate was changed to 6.25%.</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr></table> </div>                                             falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Weighted Average Assumptions Used To Determine Net Periodic Cost [No authoritative reference available.falsefalseWeighted-average assumptions used to determine net periodic benefit cost8false0glw_ScheduleOfRateOfReturnOnCurrentInterestRateEnvironmentAndPremimumRelatedToFixedIncomeRatesOfEquitiesAndOtherAssetsClassesTextBlockglwfalsenadurationSchedule Of Rate Of Return On Current Interest Rate Environment And Premimum Related To Fixed Income Rates Of Equities And...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="57%"> </td> <td width="28%"> </td> <td width="2%"> </td> <td width="8%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Assumed health care trend rates at December 31</td> <td style="border-bottom: #000000 1px solid;" align="right">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left">Health care cost trend rate assumed for next year</td> <td align="right">8.0</td> <td align="left">%</td> <td align="right">8.5</td> <td align="left">%</td></tr> <tr valign="bottom"><td align="left">Rate that the cost trend rate gradually declines to</td> <td align="right">5</td> <td align="left">%</td> <td align="right">5</td> <td align="left">%</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Year that the rate reaches the ultimate trend rate</td> <td style="border-bottom: #000000 1px solid;" align="right">2017</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">2017</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr></table> </div>          Assumed health care trend rates at December 31 2010   2009   Health care cost trend rate assumed for nextfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Rate Of Return On Current Interest Rate Environment And Premimum Related To Fixed Income Rates Of Equities And Other Assets Classes [Text Block]No authoritative reference available.falsefalseAssumed rate of return determined on current interest rate environment and historical market premiums relative to fixed income rates of equities and other asset classes9false0glw_ScheduleOfEffectOnPercentageReportedForHealthCarePlansTextBlockglwfalsenadurationSchedule Of Effect On Percentage Reported For The Health Care Plans [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="42%"> </td> <td width="2%"> </td> <td width="28%"> </td> <td width="2%"> </td> <td width="20%"> </td> <td width="2%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="center">One-percentage-point</td> <td align="right"> </td> <td align="center">One-percentage-point</td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">increase</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">decrease</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left">Effect on annual total of service and interest cost</td> <td align="right">$</td> <td align="center">5</td> <td align="right">$</td> <td align="right">(4</td> <td align="left">)</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Effect on postretirement benefit obligation</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">60</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">(49</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td></tr></table> </div>                One-percentage-point   One-percentage-point       increase   decrease   EffalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Effect On Percentage Reported For The Health Care Plans [Text Block]No authoritative reference available.falsefalseSchedule of effects of one-percentage-point change in assumed health care cost trend rates10false0glw_ScheduleOfDefinedBenefitPlansOfAssetsTextBlockglwfalsenadurationSchedule Of Defined Benefit Plans Of Assets [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div class="MetaData"> <div align="left"> <table border="0" cellspacing="0"> <tr><td width="28%"> </td> <td width="2%"> </td> <td width="20%"> </td> <td width="5%"> </td> <td width="13%"> </td> <td width="11%"> </td> <td width="6%"> </td> <td width="8%"> </td> <td width="3%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="4" align="left">Fair value measurements at reporting date using</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="center">Quoted prices in</td> <td colspan="2" align="center">Significant</td> <td colspan="2" align="center">Significant</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="center">active markets</td> <td align="center">other</td> <td align="left"> </td> <td colspan="2" align="right">unobservable</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="right">December 31,</td> <td align="left"> </td> <td align="center">for identical</td> <td colspan="2" align="center">observable</td> <td colspan="2" align="center">inputs</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">assets (Level 1)</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="center">inputs (Level 2)</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="center">(Level 3)</td></tr> <tr valign="bottom"><td align="left">Equity securities:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. companies</td> <td align="right">$</td> <td align="right">312</td> <td align="right">$</td> <td align="right">220</td> <td align="left">$</td> <td align="right">92</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">International companies</td> <td align="right"> </td> <td align="right">322</td> <td align="left"> </td> <td align="right">45</td> <td align="left"> </td> <td align="right">277</td> <td align="left"> </td> <td align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Fixed income:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. treasuries/agencies</td> <td align="right"> </td> <td align="right">103</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">103</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. corporate bonds</td> <td align="right"> </td> <td align="right">953</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">953</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">International fixed income</td> <td align="right"> </td> <td align="right">392</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">392</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Other fixed income</td> <td align="right"> </td> <td align="right">146</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">146</td> <td align="left"> </td> <td align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Private equity (1)</td> <td align="right"> </td> <td align="right">234</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left">$</td> <td align="right">234</td></tr> <tr valign="bottom"><td align="left">Real estate (2)</td> <td align="right"> </td> <td align="right">74</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">74</td></tr> <tr valign="bottom"><td align="left">Insurance contracts</td> <td align="right"> </td> <td align="right">5</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">5</td></tr> <tr valign="bottom"><td align="left">Cash equivalents</td> <td align="right"> </td> <td align="right">45</td> <td align="left"> </td> <td align="right">15</td> <td align="left"> </td> <td align="right">30</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Commodities (3)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">104</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">104</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Total</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,690</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">280</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,097</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">313</td></tr></table></div>   <table border="0" cellspacing="0"> <tr><td valign="top" width="2%">(1)      </td> <td width="98%"> This category includes venture capital, leverage buyouts and distressed debt limited partnerships invested primarily in the U.S. companies. The inputs are valued by internally generated Discounted Cash Flow Analysis and comparable sale analysis.</td></tr> <tr><td valign="top" width="2%">(2)      </td> <td width="98%"> This category includes industrial, office, apartments, hotels, infrastructure, and retail investments which are limited partnerships predominately in the U.S. The inputs are valued by internally generated Discounted Cash Flow Analysis; compare sale analysis and periodic external appraisals.</td></tr> <tr><td valign="top" width="2%">(3)      </td> <td width="98%"> This category includes investments in energy, industrial metals, precious metals, agricultural and livestock primarily through futures, options, swaps, and exchange traded funds.</td></tr></table> <div align="left"> <table border="0" cellspacing="0"> <tr><td width="28%"> </td> <td width="2%"> </td> <td width="20%"> </td> <td width="5%"> </td> <td width="13%"> </td> <td width="10%"> </td> <td width="6%"> </td> <td width="3%"> </td> <td width="9%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="5" align="right">Fair value measurements at reporting date using</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="center">Quoted prices in</td> <td colspan="2" align="center">Significant</td> <td align="left"> </td> <td align="center">Significant</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="center">active markets</td> <td align="center">other</td> <td align="left"> </td> <td colspan="2" align="right">unobservable</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="right">December 31,</td> <td align="left"> </td> <td align="center">for identical</td> <td colspan="2" align="center">observable</td> <td align="left"> </td> <td align="center">inputs</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">assets (Level 1)</td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">inputs (Level 2)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">(Level 3)</td></tr> <tr valign="bottom"><td align="left">Equity securities:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. companies</td> <td align="right">$</td> <td align="right">270</td> <td align="right">$</td> <td align="right">190</td> <td align="left">$</td> <td align="right">80</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">International companies</td> <td align="right"> </td> <td align="right">330</td> <td align="left"> </td> <td align="right">41</td> <td align="left"> </td> <td align="right">289</td> <td align="left"> </td> <td align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Fixed income:</td> <td align="right"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. treasuries/agencies</td> <td align="right"> </td> <td align="right">158</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">158</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">U.S. corporate bonds</td> <td align="right"> </td> <td align="right">857</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">857</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">International fixed income</td> <td align="right"> </td> <td align="right">194</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">194</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 2px;" align="left">Other fixed income</td> <td align="right"> </td> <td align="right">19</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">19</td> <td align="left"> </td> <td align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Private equity (1)</td> <td align="right"> </td> <td align="right">222</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left">$</td> <td align="right">222</td></tr> <tr valign="bottom"><td align="left">Real estate (2)</td> <td align="right"> </td> <td align="right">61</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">61</td></tr> <tr valign="bottom"><td align="left">Insurance contracts</td> <td align="right"> </td> <td align="right">5</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="right">5</td></tr> <tr valign="bottom"><td align="left">Cash equivalents</td> <td align="right"> </td> <td align="right">47</td> <td align="left"> </td> <td align="right">11</td> <td align="left"> </td> <td align="right">36</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Commodities (3)</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="right">107</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">107</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Total</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">2,270</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">242</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">1,740</td> <td style="border-bottom: #000000 1px solid;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">288</td></tr></table></div>   <table border="0" cellspacing="0"> <tr><td valign="top" width="2%">(1)      </td> <td width="98%"> This category includes venture capital, leverage buyouts and distressed debt limited partnerships invested primarily in the U.S. companies. The inputs are valued by internally generated Discounted Cash Flow Analysis and comparable sale analysis.</td></tr> <tr><td valign="top" width="2%">(2)      </td> <td width="98%"> This category includes industrial, office, apartments, hotels, infrastructure, and retail investments which are limited partnerships predominately in the U.S. The inputs are valued by internally generated Discounted Cash Flow Analysis; comparable sale analysis and periodic external appraisals.</td></tr> <tr><td valign="top" width="2%">(3)      </td> <td width="98%"> This category includes investments in energy, industrial metals, precious metals, agricultural and livestock primarily through futures, options, swaps, and exchange traded funds.</td></tr></table></div> </div>                          Fair value measurements at reporting datefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Defined Benefit Plans Of Assets [Text Block]No authoritative reference available.falsefalseSchedule of defined benefit plan assets measured at fair value11false0us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div class="MetaData" align="left"> <table border="0" cellspacing="0"> <tr><td width="58%"> </td> <td width="2%"> </td> <td width="8%"> </td> <td width="2%"> </td> <td width="4%"> </td> <td width="9%"> </td> <td width="2%"> </td> <td width="6%"> </td> <td width="3%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="left">Level 3 assets</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="6" align="right">Year ended December 2010</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="left"> </td> <td align="center">Private</td> <td align="left"> </td> <td align="left"> </td> <td align="center">Real</td> <td align="left"> </td> <td colspan="2" align="right">Insurance</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">equity</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">estate</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">contracts</td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Beginning balance at December 31, 2009</td> <td align="right">$</td> <td align="right">222</td> <td align="left"> </td> <td style="text-indent: 1px;" align="left">$</td> <td align="right">61</td> <td align="left"> </td> <td align="right">$</td> <td align="right">5</td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Actual return on plan assets relating to assets still held at the reporting date</td> <td align="left"> </td> <td align="right">25</td> <td align="left"> </td> <td align="left"> </td> <td align="right">(5</td> <td align="left">)</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td align="left">Purchases, sales, and settlements</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Transfers in and/or out of level 3</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">(13</td> <td style="border-bottom: #000000 1px solid;" align="left">)</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">18</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 3px double;" align="left">Ending balance at December 31, 2010</td> <td style="border-bottom: #000000 3px double;" align="right">$</td> <td style="border-bottom: #000000 3px double;" align="right">234</td> <td style="border-bottom: #000000 3px double;" align="left"> </td> <td style="border-bottom: #000000 3px double; text-indent: 1px;" align="left">$</td> <td style="border-bottom: #000000 3px double;" align="right">74</td> <td style="border-bottom: #000000 3px double;" align="left"> </td> <td style="border-bottom: #000000 3px double;" align="right">$</td> <td style="border-bottom: #000000 3px double;" align="right">5</td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="left">Level 3 assets</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="6" align="right">Year ended December 2009</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td align="left"> </td> <td align="center">Private</td> <td align="left"> </td> <td align="left"> </td> <td align="center">Real</td> <td align="left"> </td> <td colspan="2" align="right">Insurance</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">equity</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="center">estate</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" colspan="2" align="right">contracts</td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td align="left">Beginning balance at December 31, 2008</td> <td align="right">$</td> <td align="right">225</td> <td align="left"> </td> <td style="text-indent: 2px;" align="left">$</td> <td align="right">86</td> <td align="left"> </td> <td align="right">$</td> <td align="right">5</td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td style="text-indent: 3px;" align="left">Actual return on plan assets relating to assets still held at the reporting date</td> <td align="left"> </td> <td align="right">(14</td> <td align="left">)</td> <td align="left"> </td> <td align="right">(32</td> <td align="left">)</td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="text-indent: 3px;" align="left">Purchases, sales, and settlements</td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td> <td align="left"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid; text-indent: 3px;" align="left">Transfers in and/or out of level 3</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">11</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">7</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="left"> </td></tr> <tr><td colspan="9"> </td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">Ending balance at December 31, 2009</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">222</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 2px;" align="left">$</td> <td style="border-bottom: #000000 1px solid;" align="right">61</td> <td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="right">5</td></tr></table></div> </div>                          Level 3 assets           Year endedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element may be used to capture the entire disclosure for an employer that sponsors one or more defined benefit pension plans or one or more other defined benefit postretirement plans, of certain information, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5, 6, 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 4, 7, 16, 20, 21 falsefalseSummary of changes in the fair value of the defined benefit plans Level 3 assets12false0glw_ScheduleOfFutureBenefitPaymentsTextBlockglwfalsenadurationSchedule Of Future Benefit Payments [Text Block]falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <table border="0" cellspacing="0"> <tr><td width="22%"> </td> <td width="2%"> </td> <td width="22%"> </td> <td width="2%"> </td> <td width="17%"> </td> <td width="2%"> </td> <td width="29%"> </td></tr> <tr valign="bottom"><td align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid; text-indent: 1px;" colspan="5" align="center">Expected benefit payments</td></tr> <tr valign="bottom"><td align="left"> </td> <td align="right"> </td> <td align="center">Pension</td> <td align="right"> </td> <td align="center">Postretirement</td> <td align="right"> </td> <td align="center">Expected federal subsidy payments</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left"> </td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">benefits</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">benefits</td> <td style="border-bottom: #000000 1px solid;" align="right"> </td> <td style="border-bottom: #000000 1px solid;" align="center">post retirement benefits</td></tr> <tr valign="bottom"><td align="left">2011</td> <td align="right">$</td> <td align="center">184</td> <td align="right">$</td> <td align="center">80</td> <td align="right">$</td> <td align="center">6</td></tr> <tr valign="bottom"><td align="left">2012</td> <td align="right">$</td> <td align="center">186</td> <td align="right">$</td> <td align="center">86</td> <td align="right">$</td> <td align="center">7</td></tr> <tr valign="bottom"><td align="left">2013</td> <td align="right">$</td> <td align="center">187</td> <td align="right">$</td> <td align="center">91</td> <td align="right">$</td> <td align="center">7</td></tr> <tr valign="bottom"><td align="left">2014</td> <td align="right">$</td> <td align="center">190</td> <td align="right">$</td> <td align="center">96</td> <td align="right">$</td> <td align="center">8</td></tr> <tr valign="bottom"><td align="left">2015</td> <td align="right">$</td> <td align="center">196</td> <td align="right">$</td> <td align="center">100</td> <td align="right">$</td> <td align="center">8</td></tr> <tr valign="bottom"><td style="border-bottom: #000000 1px solid;" align="left">2016-2020</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">1,039</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">538</td> <td style="border-bottom: #000000 1px solid;" align="right">$</td> <td style="border-bottom: #000000 1px solid;" align="center">48</td></tr></table> </div>                  Expected benefit payments     Pension   Postretirement   Expected federalfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringSchedule Of Future Benefit Payments [Text Block]No authoritative reference available.falsefalseEstimated future benefit payments and gross amount of annual Medicare Part D subsidy expected to be received111Employee Retirement Plans (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue