XML 78 R64.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - Cash Flow Hedging [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |  |
Gain/(loss) recognized in other comprehensive income (OCI) |  | $ 13 | $ 2 | $ 27 | $ (5)
Gain reclassified from accumulated OCI into income (effective) | [1] | 9 |  | 16 |
Sales [Member] | Interest Rate Hedges [Member] |  |  |  |  |
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |  |
Gain/(loss) recognized in other comprehensive income (OCI) |  | 6 |  | (7) |
Gain reclassified from accumulated OCI into income (effective) | [1] | 5 |  | 10 |
Cost of Sales [Member] | Foreign Exchange Contract [Member] |  |  |  |  |
Note 13 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |  |
Gain/(loss) recognized in other comprehensive income (OCI) |  | 7 | $ 2 | 34 | $ (5)
Gain reclassified from accumulated OCI into income (effective) | [1] | $ 4 |  | $ 6 |
[1] | The amount of hedge ineffectiveness at June 30, 2015 and 2014 was insignificant.

X
- References No definition available. + Details
Name: | glw_Note13HedgingActivitiesDetailsEffectonConsolidatedFinancialStatementsLineItems
Namespace Prefix: | glw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=glw_InterestRateHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |