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It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a falsefalseTotal comprehensive income19false0glw_SharesIssuedToBenefitPlansAndForOptionExercisesglwfalsenadurationNumber of shares issued during the period as a result of the exercise of stock options and as a result of an employee stock...falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse40000004falsefalsefalsetruefalse2truefalsefalse203000000203falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse-36000000-36falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse171000000171falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse171000000171falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryNumber of shares issued during the period as a result of the exercise of stock options and as a result of an employee stock purchase plan.No authoritative reference available.falsefalseShares issued to benefit plans and for option exercises20false0us-gaap_DividendsCommonStockCashus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-312000000-312falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-312000000-312falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-312000000-312falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCommon stock cash dividend declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 falsefalseDividends on shares21false0us-gaap_StockholdersEquityOtherus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsetruefalse2truefalsefalse20000002falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse-11000000-11falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-9000000-9falsefalsefalsetruefalse7truefalsefalse-2000000-2falsefalsefalsetruefalse8truefalsefalse-11000000-11falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.No authoritative reference available.falsefalseOther, net22false0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditinstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2009-12-31T00:00:000001-01-01T00:00:001truefalsefalse808000000808falsefalsefalsetruefalse2truefalsefalse1270700000012707falsefalsefalsetruefalse3truefalsefalse36360000003636falsefalsefalsetruefalse4truefalsefalse-1207000000-1207falsefalsefalsetruefalse5truefalsefalse-401000000-401falsefalsefalsetruefalse6truefalsefalse1554300000015543falsefalsefalsetruefalse7truefalsefalse5200000052falsefalsefalsetruefalse8truefalsefalse1559500000015595falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A falsefalseBalance at Dec. 31, 200923false0us-gaap_ProfitLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse35580000003558falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse35580000003558falsefalsefalsetruefalse7truefalsefalse-2000000-2falsefalsefalsetruefalse8truefalsefalse35560000003556falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) falsefalseNet income24false0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecreaseus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse566000000566[1],[2]falsefalsefalsetruefalse6truefalsefalse566000000566falsefalsefalsetruefalse7truefalsefalse10000001falsefalsefalsetruefalse8truefalsefalse567000000567falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAdjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of tax.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 13, 20, 31 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 14, 17, 19, 26 falsefalseForeign currency translation adjustment and other25false0us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse60000006falsefalsefalsetruefalse6truefalsefalse60000006falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse60000006falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryGross appreciation or the gross loss in value of the total unsold securities at the end of an accounting period, after tax.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 14, 17, 19, 22, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b falsefalseNet unrealized gain (loss) on investments26false0us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTaxus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse-24000000-24[1],[3]falsefalsefalsetruefalse6truefalsefalse-24000000-24falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-24000000-24falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryChange in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 20 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 121 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 46 falsefalseNet unrealized gain (loss) on cash flow hedges27false0glw_UnrealizedPostretirementBenefitPlanLossesAndPriorServiceglwfalsedebitdurationThe accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5truefalsefalse-104000000-104falsefalsefalsetruefalse6truefalsefalse-104000000-104falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-104000000-104falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost pursuant to SFAS 87 and 106, after tax as well as adjustments out of other comprehensive income for prior service costs recognized as a component of net period benefit cost during the period, after taxNo authoritative reference available.falsefalseNet change in unrecognized postretirement benefit plans28false0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse40020000004002falsefalsefalsetruefalse7truefalsefalse-1000000-1falsefalsefalsetruefalse8truefalsefalse40010000004001falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a falsefalseTotal comprehensive income29false0glw_SharesIssuedToBenefitPlansAndForOptionExercisesglwfalsenadurationNumber of shares issued during the period as a result of the exercise of stock options and as a result of an employee stock...falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse50000005falsefalsefalsetruefalse2truefalsefalse141000000141falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse146000000146falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse146000000146falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryNumber of shares issued during the period as a result of the exercise of stock options and as a result of an employee stock purchase plan.No authoritative reference available.falsefalseShares issued to benefit plans and for option exercises30false0us-gaap_DividendsCommonStockCashus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsetruefalse3truefalsefalse-313000000-313falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-313000000-313falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-313000000-313falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCommon stock cash dividend declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 falsefalseDividends on shares31false0us-gaap_StockholdersEquityOtherus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsetruefalse2truefalsefalse1700000017falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsetruefalse4truefalsefalse-20000000-20falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6truefalsefalse-3000000-3falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-3000000-3falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.No authoritative reference available.falsefalseOther, net32false0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestus-gaaptruecreditinstantNo definition available.falsefalsefalsetruefalsefalsefalsefalsetruefalseperiodendlabelinstant2010-12-31T00:00:000001-01-01T00:00:001truefalsefalse813000000813falsetruefalsetruefalse2truefalsefalse1286500000012865falsetruefalsetruefalse3truefalsefalse68810000006881falsetruefalsetruefalse4truefalsefalse-1227000000-1227falsetruefalsetruefalse5truefalsefalse4300000043falsetruefalsetruefalse6truefalsefalse1937500000019375falsetruefalsetruefalse7truefalsefalse5100000051falsetruefalsetruefalse8truefalsefalse1942600000019426falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A falsefalseBalance at Dec. 31, 20101 Includes adjustments from Dow Corning.2 Net of tax effect of $(1) million in 2010, $0.3 million in 2009 and $(2) million in 2008. Refer to Note 6 (Income Taxes) for an explanation of Corning's tax paying position.3 Net of tax effect of $14 million in 2010, $(19) million in 2009 and $4 million in 2008.832Consolidated Statements of Changes in Shareholders' Equity (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue