Name:	glw_BusinessAcquisitionProFormaNetIncomeFromContinuingOperationsBasic
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Data Type:	xbrli:monetaryItemType
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The pro forma Net Income or Loss Available to Common Stockholders, plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions, for the period as if the business combination or combinations had been completed at the beginning of a period.

No definition available.

Name:	glw_BusinessAcquisitionProFormaNetIncomeFromContinuingOperationsDiluted
Namespace Prefix:	glw_
Data Type:	xbrli:monetaryItemType
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- References

No definition available.

Name:	glw_EarningsPerCommonShareAttributableToCommonShareholdersAbstract
Namespace Prefix:	glw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	glw_SharesUsedInComputingPerShareAmountsAbstract
Namespace Prefix:	glw_
Data Type:	xbrli:stringItemType
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- References

No definition available.

Name:	glw_UnauditedProFormaFinancialInformationAbstract
Namespace Prefix:	glw_
Data Type:	xbrli:stringItemType
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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

Name:	us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Data Type:	num:perShareItemType
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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The weighted average number of shares or units and dilutive common stock or unit equivalents outstanding in the calculation of proforma diluted earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

No definition available.

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Data Type:	xbrli:sharesItemType
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Period Type:	duration

The weighted average number of shares (units) outstanding in the calculation of pro forma basic earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

No definition available.