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$Duration_1_1_2010_To_12_31_20103222223http://www.sec.gov/CIK0000024741duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseOne year [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldiglw_OneYearMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDtruefalse{us-gaap_LossContingenciesByNatureOfContingencyAxis} : Five subsequent anniversaries [Member] 1/1/2010 - 12/31/2010 USD ($) $Duration_1_1_2010_To_12_31_20103222222http://www.sec.gov/CIK0000024741duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseFive subsequent anniversaries [Member]us-gaap_LossContingenciesByNatureOfContingencyAxisxbrldihttp://xbrl.org/2006/xbrldiglw_FiveSubsequentAnniversariesMemberus-gaap_LossContingenciesByNatureOfContingencyAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Pittsburgh Corning Corporation [Member] 1/1/2003 - 3/31/2003 USD ($) $Duration_1_1_2003_To_3_31_20032http://www.sec.gov/CIK0000024741duration2003-01-01T00:00:002003-03-31T00:00:00falsefalsePittsburgh Corning Corporation [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_PittsburghCorningCorporationMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$10falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Pittsburgh Corning Corporation [Member] 12/31/2010 USD ($) $As_Of_12_31_20101042http://www.sec.gov/CIK0000024741instant2010-12-31T00:00:000001-01-01T00:00:00falsefalsePittsburgh Corning Corporation [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_PittsburghCorningCorporationMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$11falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Pittsburgh Corning Corporation [Member] 12/31/2009 USD ($) $As_Of_12_31_200916http://www.sec.gov/CIK0000024741instant2009-12-31T00:00:000001-01-01T00:00:00falsefalsePittsburgh Corning Corporation [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_PittsburghCorningCorporationMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$12falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Samsung Corning Precision Materials Co., Ltd [Member] 12/31/2010 USD ($) $As_Of_12_31_201023http://www.sec.gov/CIK0000024741instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseSamsung Corning Precision Materials Co., Ltd [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_SamsungCorningPrecisionGlassCoLtdMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$13falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Samsung Corning Precision Materials Co., Ltd [Member] 12/31/2009 USD ($) $As_Of_12_31_20092http://www.sec.gov/CIK0000024741instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseSamsung Corning Precision Materials Co., Ltd [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_SamsungCorningPrecisionGlassCoLtdMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$14falsefalsetruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Samsung Corning Precision Materials Co., Ltd [Member] 12/31/2007 As_Of_12_31_20074http://www.sec.gov/CIK0000024741instant2007-12-31T00:00:000001-01-01T00:00:00falsefalseSamsung Corning Precision Materials Co., Ltd [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_SamsungCorningPrecisionGlassCoLtdMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit13Standardhttp://www.xbrl.org/2003/instancepurexbrli015falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Dow Corning Corporation [Member] 1/1/2010 - 12/31/2010 USD ($) $Duration_1_1_2010_To_12_31_20103http://www.sec.gov/CIK0000024741duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseDow Corning Corporation [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_DowCorningCorporationMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$16falsefalseUSDtruefalse{us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis} : Dow Corning Corporation [Member] 1/1/2009 - 12/31/2009 USD ($) $Duration_1_1_2009_To_12_31_20096http://www.sec.gov/CIK0000024741duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseDow Corning Corporation [Member]us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisxbrldihttp://xbrl.org/2006/xbrldiglw_DowCorningCorporationMemberus-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false0us-gaap_EquityMethodInvestmentOwnershipPercentageus-gaaptruenainstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2falsetruefalse00falsefalsefalsefalsefalse3falsetruefalse00falsefalsefalsefalsefalse4falsetruefalse00falsefalsefalsefalsefalse5falsetruefalse00falsefalsefalsefalsefalse6falsetruefalse00falsefalsefalsefalsefalse7falsetruefalse00falsefalsefalsetruefalse8falsetruefalse00falsefalsefalsetruefalse9falsetruefalse00falsefalsefalsetruefalse10falsetruefalse00falsefalsefalsetruefalse11falsetruefalse00falsefalsefalsetruefalse12truetruefalse0.50.5falsefalsefalsetruefalse13falsetruefalse00falsefalsefalsetruefalse14truetruefalse0.50.5falsefalsefalsetruefalse15falsetruefalse00falsefalsefalsetruefalse16falsetruefalse00falsefalsefalsetruefalseOtherus-types:percentItemTypepureThe percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a (1) falsefalsePercent ownership in PCC3false0us-gaap_LossContingencyPendingClaimsNumberus-gaaptruenainstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse1180011800falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerThe total amount of pending claims pertaining to a loss contingency accrual as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalseNumber of pending claims4false0glw_NumberOfOtherCasesCurrentlyInvolvedAllegingInjuriesFromAsbestosAndSimilarAmountsOfMonetaryDamagesPerCaseglwfalsenadurationNumber of other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages per case.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse1030010300falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:pureItemTypepureNumber of other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages per case.No authoritative reference available.falsefalseNumber of other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages per case5false0glw_NumberOfClaimsInOtherCasesCurrentlyInvolvedAllegingInjuriesFromAsbestosAndSimilarAmountsOfMonetaryDamagesPerCaseglwfalsenadurationNumber of claims in other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse3870038700falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:pureItemTypepureNumber of claims in other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages per case.No authoritative reference available.falsefalseNumber of claims in other cases currently involved alleging injuries from asbestos and similar amounts of monetary damages per case6false0glw_NumberOfSharesContributedToAsbestosClaimantsglwfalsenadurationNumber of shares contributed to asbestos claimantsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse2500000025000000falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseSharesxbrli:sharesItemTypesharesNumber of shares contributed to asbestos claimantsNo authoritative reference available.falsefalseNumber of shares contributed to asbestos claimants7false0glw_NumberOfAnnualInstallmentsPaidToAsbestosClaimantsglwfalsenadurationNumber of annual installments paid to asbestos claimantsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse66falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerNumber of annual installments paid to asbestos claimantsNo authoritative reference available.falsefalseNumber of annual installments paid to asbestos claimants8false0us-gaap_LitigationSettlementGrossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9truefalsefalse140000000140falsetruefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15truefalsefalse17000000001700falsetruefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the gross amount awarded, to be received by, or to be remitted to the entity in settlement of litigation occurring during the period.No authoritative reference available.falsefalseAmount to be paid to asbestos claimants9false0glw_PresentValueOfAmountPaidToClaimantsglwfalsedebitdurationPresent value of amount paid to claimantsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9truefalsefalse131000000131falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryPresent value of amount paid to claimantsNo authoritative reference available.falsefalsePresent value of amount paid to claimants10false0glw_InterestOnAmountPaidToClaimantsglwfalsenadurationInterest on amount paid to claimantsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse5.55.5falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:decimalItemTypedecimalInterest on amount paid to claimantsNo authoritative reference available.falsefalseInterest on amount paid to claimants11false0us-gaap_LossContingencyAccrualCarryingValuePaymentsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7truefalsefalse100000000100falsefalsefalsetruefalse8truefalsefalse5000000050falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe payments made in the period which reduced loss contingency reserves.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalsePayment amount of asbestos claims under Amended PCC claim12false0glw_LossContingencyAccrualPaymentYearsglwfalsenadurationLoss Contingency Accrual Payment Yearsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse55falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerLoss Contingency Accrual Payment YearsNo authoritative reference available.falsefalseLoss contingency accrual payment years13false0glw_LossContingencyAccrualInitialPaymentIncreaseDecreaseglwfalsedebitdurationLoss Contingency Accrual Initial Payment Increase Decreasefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse3000000030falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryLoss Contingency Accrual Initial Payment Increase DecreaseNo authoritative reference available.falsefalseLoss contingency accrual initial payment increase decrease14false0glw_LossContingencyAccrualPaymentIncreaseDecreaseglwfalsedebitdurationLoss contingency accrual payment increase decreasefalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse1500000015falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryLoss contingency accrual payment increase decreaseNo authoritative reference available.falsefalseLoss contingency accrual payment increase decrease15false0us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecreaseus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse150000000150falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryNet change in the period in loss contingency reserves.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalseAdditional payment for claims in its estimated asbestos litigation security16false0glw_LossContingencyEstimatedClaimsPeriodYearsglwfalsenadurationLoss Contingency Estimated Claims Period Yearsfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse2020falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseOtherxbrli:integerItemTypeintegerLoss Contingency Estimated Claims Period YearsNo authoritative reference available.falsefalseLoss contingency estimated claims period years17false0us-gaap_LossContingencyEstimateOfPossibleLossus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse633000000633falsefalsefalsefalsefalse5truefalsefalse682000000682falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryReflects the estimated amount of loss from the specified contingency as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 falsefalseEstimated liability18false0glw_AsbestosSettlementCreditChargeglwfalsedebitdurationThe charges for the period are the result of the changes in the fair value of the components of the proposed asbestos...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse5400000054falsefalsefalsefalsefalse2truefalsefalse327000000327falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse-49000000-49[1]falsefalsefalsefalsefalse5truefalsefalse2000000020[1]falsefalsefalsefalsefalse6truefalsefalse-340000000-340[1]falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15truefalsefalse50000005falsefalsefalsetruefalse16truefalsefalse2000000020falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe charges for the period are the result of the changes in the fair value of the components of the proposed asbestos settlement agreement (See the Commitment and Contingency footnote and the Investment footnote for further details).No authoritative reference available.falsefalseAsbestos settlement credit charge19false0glw_LossContingencyEstimatedCarryingValuePeriodIncreaseDecreaseglwfalsedebitdurationLoss Contingency Estimated Carrying Value Period Increase Decreasefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6truefalsefalse1300000013falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryLoss Contingency Estimated Carrying Value Period Increase DecreaseNo authoritative reference available.falsefalseAmount in benefits that reflect the change in value of the estimated liability under an Amended PCC Plan20false0us-gaap_EquityMethodInvestmentsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse43690000004369falsefalsefalsefalsefalse5truefalsefalse39880000003988falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10truefalsefalse129000000129falsefalsefalsetruefalse11truefalsefalse125000000125falsefalsefalsetruefalse12truefalsefalse29430000002943falsefalsefalsetruefalse13truefalsefalse27720000002772falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15truefalsefalse11860000001186falsefalsefalsetruefalse16truefalsefalse992000000992falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment losses recognized.No authoritative reference available.falsefalseEquity method investments21false0us-gaap_LossContingencyAccrualProductLiabilityGrossus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4truefalsefalse633000000633falsetruefalsefalsefalse5truefalsefalse682000000682falsetruefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsetruefalse8falsefalsefalse00falsefalsefalsetruefalse9falsefalsefalse00falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe estimated aggregate undiscounted amount of the accrual for damages arising from third-party use of the entity's product(s) or process(es) as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section Y -Paragraph Question 1 falsefalseEstimated product liability1 (3) In 2010, Corning recorded a net credit of $49 million primarily reflecting the change in the terms of the proposed asbestos settlement. In 2009, Corning recorded charges of $20 million to adjust the asbestos liability for the change in value of certain components of the amended PCC Plan and the estimated liability for non-PCC asbestos claims. In 2008, Corning reduced its liability for asbestos litigation by $327 million as a result of the increase in the likelihood of a settlement under recently proposed terms and a corresponding decrease in the likelihood of a settlement under terms established in 2003. Also, in 2008, Corning recorded a credit of $13 million to adjust the asbestos liability for the change in value of certain components of the Amended PCC Plan. (4) Other corporate items include the tax impact of the unallocated amounts and the following significant items: • In 2010, Corning recorded a loss of $30 million ($19 million after tax) from the repurchase of $126 million principal amount of our 6.2% senior unsecured notes due March 15, 2016 and $100 million principal amount of our 5.9% senior unsecured notes due March 15, 2014. • In 2009, Corning recorded $10 million of additional valuation allowance due to a change in judgment about the realizability of U.S. and United Kingdom deferred tax assets in future years; a $41 million tax benefit to reflect a deferred tax asset associated with Medicare Part D subsidies; a $27 million U.S. tax credit for research and experimentation expenses incurred from 2005 to 2008; and $98 million of restructuring charges. • In 2008, Corning released $2.5 billion of valuation allowances including $2.4 billion due to sustained profitability and positive future earnings projections for U.S. entities and $115 million from a change in estimate regarding 2008 U.S. taxable income. Also, we recorded a $40 million gain related to a favorable tax settlement with the Canadian Revenue Agency and net losses of $53 million on certain available-for-sale securities included in cash and short-term investments. 1620Investments (Pittsburgh Corning Corporation) (Details) (USD $)MillionsNoRoundingUnKnownUnKnowntruetrue