Benchmark Percentage of Benefit Obligation or Market-related value of plan assets.

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- Definition

Depreciation in the exchange rates for the Japanese yen and the U.S. dollar.

+ References

No definition available.

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- Definition

The maximum percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

No definition available.

+ Details

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- Definition

The minimum percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

No definition available.

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- Definition

Minimum voting securities owned.

+ References

No definition available.

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- Definition

Minority Interests of Shareholders Acquired, Number of Shareholders

+ References

No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

+ Details

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- Definition

Amount of interest capitalized during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

-URI http://asc.fasb.org/extlink&oid=6504829

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 730

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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Note 1 - Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 15, 2014	Nov. 30, 2013
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Equity Method Investment Ownership Percentage Minimum		20.00%
Equity Method Investment Ownership Percentage Maximum		50.00%
Minimum Voting Securities Owned		20.00%glw_MinimumVotingSecuritiesOwned
Minority Interests of Shareholders Acquired, Number of Shareholders	3
Derivative, Gain (Loss) on Derivative, Net		$ 1,369,000,000	$ 435,000,000
Depreciation in Exchange Rate for Japanese Yen and US Dollar		14.00%	22.00%
Research and Development Expense		701,000,000us-gaap_ResearchAndDevelopmentExpense	613,000,000us-gaap_ResearchAndDevelopmentExpense	651,000,000us-gaap_ResearchAndDevelopmentExpense
Interest Costs Capitalized		40,000,000us-gaap_InterestCostsCapitalized	35,000,000us-gaap_InterestCostsCapitalized	74,000,000us-gaap_InterestCostsCapitalized
Benchmark Percentage of Benefit Obligation or Market Related Value of Plan Assets		10.00%
Gross Notional Value [Member] \| Not Designated as Hedging Instrument [Member] \| Japan, Yen \| Translated Earnings Contracts [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Derivative, Notional Amount	6,800,000,000	9,800,000,000	6,800,000,000
Gross Notional Value [Member] \| Not Designated as Hedging Instrument [Member] \| Korea (South), Won \| Translated Earnings Contracts [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Derivative, Notional Amount		2,300,000,000
Building [Member] \| Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life		10 years
Building [Member] \| Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life		40 years
Equipment [Member] \| Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life		2 years
Equipment [Member] \| Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life		20 years
Japan, Yen \| Foreign Exchange Contract [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax		1,406,000,000	435,000,000
Derivative, Gain (Loss) on Derivative, Net		344,000,000	110,000,000
Korea (South), Won \| Foreign Exchange Contract [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax		(37,000,000)
Derivative, Gain (Loss) on Derivative, Net		$ (6,000,000)
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Equity Method Investment, Ownership Percentage	57.50%		57.50%			50.00%
Sale of Stock, Percentage of Ownership after Transaction					100.00%
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Equity Method Investment, Ownership Percentage					57.50%
Sale of Stock, Percentage of Ownership after Transaction					100.00%
Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life		4 years
Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life		50 years