$GLW
CORNING INC /NY Stock $glw

$glw Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000143774922003247 Filed on February 14, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$3.676B	$14.08B	$3.350B
YoY Change	9.73%	24.59%	18.92%
Cost Of Revenue	$2.405B	$9.019B	$2.137B
YoY Change	12.54%	16.04%	8.86%
Gross Profit	$1.271B	$5.063B	$1.213B
YoY Change	4.78%	43.39%	42.04%
Gross Profit Margin	34.58%	35.95%	36.21%
Selling, General & Admin	$476.0M	$1.827B	$471.0M
YoY Change	1.06%	4.58%	17.46%
% of Gross Profit	37.45%	36.09%	38.83%
Research & Development	$280.0M	$800.0M	$232.0M
YoY Change	20.69%	-20.0%	-16.55%
% of Gross Profit	22.03%	15.8%	19.13%
Depreciation & Amortization	$379.0M	$1.352B	$392.0M
YoY Change	-3.32%	-3.36%	0.0%
% of Gross Profit	29.82%	26.7%	32.32%
Operating Expenses	$788.0M	$2.627B	$737.0M
YoY Change	6.92%	-4.37%	4.24%
Operating Profit	$483.0M	$2.112B	$476.0M
YoY Change	1.47%	314.93%	223.81%
Interest Expense	$26.00M	$100.0M	-$157.0M
YoY Change	-116.56%	-130.86%	207.84%
% of Operating Profit	5.38%	4.73%	-32.98%
Other Income/Expense, Net	$67.00M	$185.0M	$11.00M
YoY Change	509.09%	-408.33%	-113.92%
Pretax Income	$576.0M	$2.397B	$330.0M
YoY Change	74.55%	284.75%	1841.18%
Income Tax	$89.00M	$491.0M	$78.00M
% Of Pretax Income	15.45%	20.48%	23.64%
Net Earnings	$487.0M	$1.906B	$252.0M
YoY Change	93.25%	272.27%	687.5%
Net Earnings / Revenue	13.25%	13.54%	7.52%
Basic Earnings Per Share		$1.30
Diluted Earnings Per Share	$563.0K	$1.28	$321.4K
COMMON SHARES
Basic Shares Outstanding	853.4M	828.0M	764.0M
Diluted Shares Outstanding		844.0M

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.148B	$2.148B	$2.672B
YoY Change	-19.61%	-19.61%	9.78%
Cash & Equivalents	$2.148B	$2.148B	$2.672B
Short-Term Investments
Other Short-Term Assets	$1.026B	$1.026B	$761.0M
YoY Change	34.82%	34.82%	-12.83%
Inventory	$2.481B	$2.481B	$2.481B
Prepaid Expenses
Receivables	$2.004B	$2.004B	$2.133B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$7.659B	$7.659B	$8.004B
YoY Change	-4.31%	-4.31%	7.25%
LONG-TERM ASSETS
Property, Plant & Equipment	$15.80B	$16.55B	$15.74B
YoY Change	0.39%	0.75%	2.64%
Goodwill	$2.421B		$2.460B
YoY Change	-1.59%		27.13%
Intangibles	$1.148B		$1.308B
YoY Change	-12.23%		10.38%
Long-Term Investments	$264.0M	$328.0M	$435.0M
YoY Change	-39.31%	-24.6%	49.48%
Other Assets	$2.056B	$1.703B	$2.140B
YoY Change	-3.93%	-4.38%	17.52%
Total Long-Term Assets	$22.50B	$22.50B	$22.77B
YoY Change	-1.21%	-1.21%	6.23%
TOTAL ASSETS
Total Short-Term Assets	$7.659B	$7.659B	$8.004B
Total Long-Term Assets	$22.50B	$22.50B	$22.77B
Total Assets	$30.15B	$30.15B	$30.78B
YoY Change	-2.02%	-2.02%	6.5%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.612B	$1.612B	$1.174B
YoY Change	37.31%	37.31%	-26.02%
Accrued Expenses	$3.139B	$918.0M	$3.139B
YoY Change	0.0%	34.8%	63.23%
Deferred Revenue	$223.0M		$223.0M
YoY Change	0.0%		114.42%
Short-Term Debt		$0.00	$75.00M
YoY Change
Long-Term Debt Due	$55.00M	$55.00M	$156.0M
YoY Change	-64.74%	-64.74%	1318.18%
Total Short-Term Liabilities	$4.806B	$4.806B	$3.767B
YoY Change	27.58%	27.58%	6.99%
LONG-TERM LIABILITIES
Long-Term Debt	$6.989B	$6.989B	$7.816B
YoY Change	-10.58%	-10.58%	1.13%
Other Long-Term Liabilities	$5.192B	$5.556B	$5.192B
YoY Change	0.0%	2.3%	30.45%
Total Long-Term Liabilities	$5.192B	$12.55B	$5.192B
YoY Change	0.0%	-5.3%	30.45%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.806B	$4.806B	$3.767B
Total Long-Term Liabilities	$5.192B	$12.55B	$5.192B
Total Liabilities	$17.61B	$17.82B	$17.33B
YoY Change	1.63%	1.73%	8.97%
SHAREHOLDERS EQUITY
Retained Earnings	$16.39B		$16.12B
YoY Change	1.67%		-1.76%
Common Stock	$17.38B		$15.51B
YoY Change	12.11%		2.13%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$20.26B		$19.93B
YoY Change	1.68%		0.59%
Treasury Stock Shares	$970.0M		$961.0M
Shareholders Equity	$12.33B	$12.33B	$13.26B
YoY Change
Total Liabilities & Shareholders Equity	$30.15B	$30.15B	$30.78B
YoY Change	-2.02%	-2.02%	6.5%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$487.0M	$1.906B	$252.0M
YoY Change	93.25%	272.27%	687.5%
Depreciation, Depletion And Amortization	$379.0M	$1.352B	$392.0M
YoY Change	-3.32%	-3.36%	0.0%
Cash From Operating Activities	$1.023B	$3.412B	$774.0M
YoY Change	32.17%	56.51%	-23.97%
INVESTING ACTIVITIES
Capital Expenditures	-$623.0M	-$1.637B	-$391.0M
YoY Change	59.34%	18.88%	3.99%
Acquisitions
YoY Change
Other Investing Activities	$7.000M	$53.00M	$13.00M
YoY Change	-46.15%	-215.22%	-31.58%
Cash From Investing Activities	-$616.0M	-$1.419B	-$378.0M
YoY Change	62.96%	8.32%	5.88%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$274.0M
YoY Change		160.95%
Debt Paid & Issued, Net		$716.0M
YoY Change		491.74%
Cash From Financing Activities	-462.0M	-$2.452B	-314.0M
YoY Change	47.13%	236.35%	-139.95%
NET CHANGE
Cash From Operating Activities	1.023B	$3.412B	774.0M
Cash From Investing Activities	-616.0M	-$1.419B	-378.0M
Cash From Financing Activities	-462.0M	-$2.452B	-314.0M
Net Change In Cash	-55.00M	-$524.0M	82.00M
YoY Change	-167.07%	-320.17%	-94.33%
FREE CASH FLOW
Cash From Operating Activities	$1.023B	$3.412B	$774.0M
Capital Expenditures	-$623.0M	-$1.637B	-$391.0M
Free Cash Flow	$1.646B	$5.049B	$1.165B
YoY Change	41.29%	41.95%	-16.43%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1800000000
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1700000000
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	970000000
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	961000000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2019	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	42500
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.88
CY2020	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	42500
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
CY2021	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	10625
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1100000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	120000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	120000000	USD
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.50
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.50
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3800000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3800000000
CY2021	dei	Auditor Location AuditorLocation	New York, New York
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	42000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	46000000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13969000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13663000000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	100
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	100
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2300
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	120000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	120000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2021	us-gaap	Revenues Revenues	14082000000	USD
CY2020	us-gaap	Revenues Revenues	11303000000	USD
CY2019	us-gaap	Revenues Revenues	11503000000	USD
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	9019000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2397000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	623000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1216000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	491000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	111000000	USD
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	7772000000	USD
CY2019	us-gaap	Cost Of Revenue CostOfRevenue	7468000000	USD
CY2021	us-gaap	Gross Profit GrossProfit	5063000000	USD
CY2020	us-gaap	Gross Profit GrossProfit	3531000000	USD
CY2019	us-gaap	Gross Profit GrossProfit	4035000000	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1827000000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1747000000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1585000000	USD
CY2021	glw	Research Development And Engineering Expenses ResearchDevelopmentAndEngineeringExpenses	995000000	USD
CY2020	glw	Research Development And Engineering Expenses ResearchDevelopmentAndEngineeringExpenses	1154000000	USD
CY2019	glw	Research Development And Engineering Expenses ResearchDevelopmentAndEngineeringExpenses	1031000000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	129000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	121000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	113000000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	2112000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	509000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	1306000000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	35000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-25000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17000000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	11000000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	15000000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	21000000	USD
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	300000000	USD
CY2020	us-gaap	Interest And Debt Expense InterestAndDebtExpense	276000000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	221000000	USD
CY2021	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	354000000	USD
CY2020	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	-38000000	USD
CY2019	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	248000000	USD
CY2020	glw	Gain Loss Related To Transaction Net GainLossRelatedToTransactionNet	498000000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	185000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-60000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-155000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	256000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1906000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	960000000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.28
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.07
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1906000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	960000000	USD
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	24000000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	98000000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	98000000	USD
CY2021	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	803000000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1079000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	414000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	862000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1906000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	960000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-604000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	528000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-143000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1000000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-178000000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	88000000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	64000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-9000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-9000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	45000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-435000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	431000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-161000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1471000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	943000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	799000000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2148000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2672000000	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2004000000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2133000000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	2481000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	2438000000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1026000000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	761000000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	7659000000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	8004000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15804000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15742000000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	2421000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	2460000000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1148000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1308000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1066000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1121000000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2056000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2140000000	USD
CY2021Q4	us-gaap	Assets Assets	30154000000	USD
CY2020Q4	us-gaap	Assets Assets	30775000000	USD
CY2021Q4	us-gaap	Debt Current DebtCurrent	55000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	156000000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1612000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1174000000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	3139000000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2437000000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4806000000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3767000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	6989000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7816000000	USD
CY2021Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	622000000	USD
CY2020Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	727000000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5192000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5017000000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	17609000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	17327000000	USD
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	2300000000	USD
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	907000000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	863000000	USD
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	16475000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	14642000000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	16389000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	16120000000	USD
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	20263000000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19928000000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1175000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-740000000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	12333000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	13257000000	USD
CY2021Q4	us-gaap	Minority Interest MinorityInterest	212000000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	191000000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12545000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13448000000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	30154000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	30775000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1906000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	960000000	USD
CY2021	us-gaap	Depreciation Depreciation	1352000000	USD
CY2020	us-gaap	Depreciation Depreciation	1399000000	USD
CY2019	us-gaap	Depreciation Depreciation	1390000000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	129000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	121000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	113000000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-57000000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-138000000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-123000000	USD
CY2021	us-gaap	Severance Costs1 SeveranceCosts1	-13000000	USD
CY2020	us-gaap	Severance Costs1 SeveranceCosts1	148000000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	63000000	USD
CY2021	glw	Severence Payments SeverencePayments	26000000	USD
CY2020	glw	Severence Payments SeverencePayments	147000000	USD
CY2019	glw	Severence Payments SeverencePayments	28000000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	190000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	207000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	56000000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	806000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	139000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	31000000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	35000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-25000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17000000	USD
CY2021	glw	Translation Gain Loss On Japanese Yen Denominated Debt TranslationGainLossOnJapaneseYenDenominatedDebt	180000000	USD
CY2020	glw	Translation Gain Loss On Japanese Yen Denominated Debt TranslationGainLossOnJapaneseYenDenominatedDebt	-86000000	USD
CY2019	glw	Translation Gain Loss On Japanese Yen Denominated Debt TranslationGainLossOnJapaneseYenDenominatedDebt	-3000000	USD
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	8000000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1000000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	106000000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-20000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-191000000	USD
CY2021	us-gaap	Pension Contributions PensionContributions	24000000	USD
CY2020	us-gaap	Pension Contributions PensionContributions	221000000	USD
CY2019	us-gaap	Pension Contributions PensionContributions	2000000	USD
CY2021	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	354000000	USD
CY2020	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	-38000000	USD
CY2019	glw	Translated Earnings Contract Gain Loss Net TranslatedEarningsContractGainLossNet	248000000	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-77000000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	133000000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-33000000	USD
CY2020	us-gaap	Liability For Asbestos And Environmental Claims Gross Payment For Claims LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims	130000000	USD
CY2019	us-gaap	Liability For Asbestos And Environmental Claims Gross Payment For Claims LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims	50000000	USD
CY2020	glw	Tax Assessment Refunds TaxAssessmentRefunds	-101000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	217000000	USD
CY2020	glw	Gain Loss Related To Transaction Net GainLossRelatedToTransactionNet	498000000	USD
CY2020	glw	Realignment Of Investment Gain Loss RealignmentOfInvestmentGainLoss	107000000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	54000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	274000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-48000000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	103000000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-423000000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	298000000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	224000000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	25000000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	300000000	USD
CY2021	glw	Increase Decrease In Customer Deposits And Incentives IncreaseDecreaseInCustomerDepositsAndIncentives	97000000	USD
CY2020	glw	Increase Decrease In Customer Deposits And Incentives IncreaseDecreaseInCustomerDepositsAndIncentives	238000000	USD
CY2019	glw	Increase Decrease In Customer Deposits And Incentives IncreaseDecreaseInCustomerDepositsAndIncentives	89000000	USD
CY2021	glw	Increase Decrease In Deferred Income IncreaseDecreaseInDeferredIncome	-116000000	USD
CY2020	glw	Increase Decrease In Deferred Income IncreaseDecreaseInDeferredIncome	-46000000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	97000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	12000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-150000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3412000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2180000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2031000000	USD
CY2021	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	1637000000	USD
CY2020	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	1377000000	USD
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	1978000000	USD
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	17000000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	37000000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	103000000	USD
CY2021	glw	Proceeds From Payments For Equity Method Investments ProceedsFromPaymentsForEquityMethodInvestments	84000000	USD
CY2020	glw	Proceeds From Payments For Equity Method Investments ProceedsFromPaymentsForEquityMethodInvestments	-28000000	USD
CY2019	glw	Proceeds From Payments For Equity Method Investments ProceedsFromPaymentsForEquityMethodInvestments	-26000000	USD
CY2019	glw	Proceeds From Sale Of Productive Assets To Relatedparties ProceedsFromSaleOfProductiveAssetsToRelatedparties	78000000	USD
CY2021	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	67000000	USD
CY2020	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	12000000	USD
CY2019	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	55000000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	53000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-46000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	20000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1419000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1310000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1891000000	USD
CY2021	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	144000000	USD
CY2020	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	100000000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	716000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	121000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	300000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	22000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	243000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	1831000000	USD
CY2021	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	507000000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	61000000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	11000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	17000000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	97000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	124000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	58000000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	274000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	105000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	940000000	USD
CY2021	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	871000000	USD
CY2020	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	787000000	USD
CY2019	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	742000000	USD
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CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	28000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	63000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2452000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-729000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-47000000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-65000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	97000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-14000000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-524000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	238000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	79000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2672000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2434000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2355000000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2148000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2672000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2434000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13886000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	979000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-161000000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	925000000	USD
CY2019	glw	Shares Issued To Benefit Plans And For Option Exercises SharesIssuedToBenefitPlansAndForOptionExercises	113000000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	625000000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	98000000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	172000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12997000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	523000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	432000000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	105000000	USD
CY2020	glw	Shares Issued To Benefit Plans And For Option Exercises SharesIssuedToBenefitPlansAndForOptionExercises	323000000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	681000000	USD
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	98000000	USD
CY2020	us-gaap	Stockholders Equity Change In Reporting Entity StockholdersEquityChangeInReportingEntity	102000000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	45000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13448000000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	1935000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-436000000	USD
CY2021	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	1503000000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	274000000	USD
CY2021	glw	Shares Issued To Benefit Plans And For Option Exercises SharesIssuedToBenefitPlansAndForOptionExercises	277000000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	812000000	USD
CY2021	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	24000000	USD
CY2021	us-gaap	Stockholders Equity Other StockholdersEquityOther	66000000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12545000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	217000000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;"><b><i>Use of Estimates</i></b></p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;"> </p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;margin:0pt;">The preparation of financial statements, in conformity with GAAP, requires management to make estimates and assumptions affecting reported amounts of assets, liabilities, revenue, expenses and the disclosure of contingent assets and liabilities in the consolidated financial statements and related notes. Significant estimates and assumptions in these consolidated financial statements include estimates associated with revenue recognition, restructuring charges, goodwill and long-lived asset impairment tests, estimates of acquired assets and liabilities, estimates of fair value of investments, equity interests, environmental and legal liabilities, income taxes and deferred tax valuation allowances, assumptions used in calculating pension and other postretirement employee benefit expenses and the fair value of share-based compensation. Due to the inherent uncertainty involved in making estimates, actual results reported in future periods <em style="font: inherit;"> may </em>be different from these estimates.</p> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"> </p>
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	800000000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1000000000.0	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	800000000	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	126000000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-37000000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-19000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges		USD
CY2021	glw	Capacity Realignment CapacityRealignment	46000000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	357000000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	231000000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	592000000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	287000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	298000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	248000000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	377000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	220000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	474000000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	36000000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	58000000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	54000000	USD
CY2020	glw	Capacity Realignment CapacityRealignment	304000000	USD
CY2019	glw	Capacity Realignment CapacityRealignment	312000000	USD
CY2021	us-gaap	Other Restructuring Costs OtherRestructuringCosts	77000000	USD
CY2020	us-gaap	Other Restructuring Costs OtherRestructuringCosts	158000000	USD
CY2021	us-gaap	Severance Costs1 SeveranceCosts1	-13000000	USD
CY2020	us-gaap	Severance Costs1 SeveranceCosts1	148000000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	63000000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges		USD
CY2019	us-gaap	Other Restructuring Costs OtherRestructuringCosts	64000000	USD
CY2021	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	110000000	USD
CY2020	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	827000000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	439000000	USD
CY2021	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	110000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	217000000	USD
CY2020	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	827000000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	439000000	USD
CY2021Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	64000000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	177000000	USD
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	328000000	USD
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	435000000	USD
CY2020Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	8000000	USD
CY2021	us-gaap	Revenues Revenues	14082000000	USD
CY2020	us-gaap	Revenues Revenues	11303000000	USD
CY2019	us-gaap	Revenues Revenues	11503000000	USD
CY2021	glw	Revenue Currency Adjustment RevenueCurrencyAdjustment	38000000	USD
CY2020	glw	Revenue Currency Adjustment RevenueCurrencyAdjustment	44000000	USD
CY2019	glw	Revenue Currency Adjustment RevenueCurrencyAdjustment	153000000	USD
CY2020	glw	Revenue Cumulative Adjustments RevenueCumulativeAdjustments	105000000	USD
CY2021	glw	Revenue Net RevenueNet	14120000000	USD
CY2020	glw	Revenue Net RevenueNet	11452000000	USD
CY2019	glw	Revenue Net RevenueNet	11656000000	USD
CY2020Q1	glw	Revenue Cumulative Adjustments RevenueCumulativeAdjustments	-105000000	USD
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1300000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1400000000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	216000000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	140000000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1100000000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	223000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	211000000	USD
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1190000000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1236000000	USD
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	358000000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	357000000	USD
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	427000000	USD
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	370000000	USD
CY2021Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	506000000	USD
CY2020Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	475000000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	2481000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	2438000000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	17000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	15000000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	8000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	7000000	USD
CY2021	glw	Finance Lease Cost FinanceLeaseCost	25000000	USD
CY2020	glw	Finance Lease Cost FinanceLeaseCost	22000000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	139000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	133000000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	59000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	41000000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4000000	USD
CY2021	us-gaap	Lease Cost LeaseCost	225000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	200000000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	13000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	10000000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	8000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	7000000	USD
CY2021	glw	Finance Lease Payment FinanceLeasePayment	21000000	USD
CY2020	glw	Finance Lease Payment FinanceLeasePayment	17000000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	134000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	121000000	USD
CY2021	glw	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	155000000	USD
CY2020	glw	Operating And Finance Lease Payments OperatingAndFinanceLeasePayments	138000000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y10M24D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040	pure
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.044	pure
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	103000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	110000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	97000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	85000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	78000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	553000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1026000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	241000000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	785000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	22000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	27000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	21000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	15000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	32000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	142000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	259000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	76000000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	183000000	USD
CY2021Q4	glw	Lessee Operating Lease Lease Not Yet Commenced LesseeOperatingLeaseLeaseNotYetCommenced	122000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1254000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-71000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	504000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1143000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	694000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	712000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2397000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	623000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1216000000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	172000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-88000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	82000000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	13000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12000000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	290000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	203000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	354000000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	97000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-7000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-64000000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	7000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-13000000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-88000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-10000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-115000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	491000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	111000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	256000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.010	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.014	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.006	pure
CY2021	glw	Effective Income Tax Rate Reconciliation Global Intangible Lowtaxed Income EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowtaxedIncome	0.002	pure
CY2020	glw	Effective Income Tax Rate Reconciliation Global Intangible Lowtaxed Income EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowtaxedIncome	-0.005	pure
CY2019	glw	Effective Income Tax Rate Reconciliation Global Intangible Lowtaxed Income EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowtaxedIncome	0.012	pure
CY2021	glw	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	0.013	pure
CY2020	glw	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome		pure
CY2019	glw	Effective Income Tax Rate Reconciliation Foreign Derived Intangible Income EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	0.085	pure
CY2021	glw	Effective Income Tax Rate Reconciliation Remeasurement Of Deferred Tax Assets And Liabilities Percent EffectiveIncomeTaxRateReconciliationRemeasurementOfDeferredTaxAssetsAndLiabilitiesPercent		pure
CY2020	glw	Effective Income Tax Rate Reconciliation Remeasurement Of Deferred Tax Assets And Liabilities Percent EffectiveIncomeTaxRateReconciliationRemeasurementOfDeferredTaxAssetsAndLiabilitiesPercent	0.134	pure
CY2019	glw	Effective Income Tax Rate Reconciliation Remeasurement Of Deferred Tax Assets And Liabilities Percent EffectiveIncomeTaxRateReconciliationRemeasurementOfDeferredTaxAssetsAndLiabilitiesPercent	0.006	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.020	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.152	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.054	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.016	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.121	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.085	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.005	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.025	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.037	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.026	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.297	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.028	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.015	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.017	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.006	pure
CY2021	glw	Effective Income Tax Rate Reconciliation Rationalization EffectiveIncomeTaxRateReconciliationRationalization		pure
CY2020	glw	Effective Income Tax Rate Reconciliation Rationalization EffectiveIncomeTaxRateReconciliationRationalization	0.022	pure
CY2019	glw	Effective Income Tax Rate Reconciliation Rationalization EffectiveIncomeTaxRateReconciliationRationalization		pure
CY2021	glw	Effective Income Tax Rate Reconciliation Intercompany Loan Adjustment Percent EffectiveIncomeTaxRateReconciliationIntercompanyLoanAdjustmentPercent		pure
CY2020	glw	Effective Income Tax Rate Reconciliation Intercompany Loan Adjustment Percent EffectiveIncomeTaxRateReconciliationIntercompanyLoanAdjustmentPercent	0.062	pure
CY2019	glw	Effective Income Tax Rate Reconciliation Intercompany Loan Adjustment Percent EffectiveIncomeTaxRateReconciliationIntercompanyLoanAdjustmentPercent	-0.005	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.014	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.070	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.021	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010	pure
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.205	pure
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.178	pure
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.211	pure
CY2020Q3	us-gaap	Increase Decrease In Deferred Liabilities IncreaseDecreaseInDeferredLiabilities	116000000	USD
CY2021	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	2300000000	USD
CY2021Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	2400000000	USD
CY2021Q4	glw	Deferred Tax Assets Loss And Tax Credit Carry Forward DeferredTaxAssetsLossAndTaxCreditCarryForward	375000000	USD
CY2020Q4	glw	Deferred Tax Assets Loss And Tax Credit Carry Forward DeferredTaxAssetsLossAndTaxCreditCarryForward	637000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	281000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	269000000	USD
CY2021Q4	glw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Impairments And Restructuring Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetImpairmentsAndRestructuringReserves	30000000	USD
CY2020Q4	glw	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Impairments And Restructuring Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetImpairmentsAndRestructuringReserves	29000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	154000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	171000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	354000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	162000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	329000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	337000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1523000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1605000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	138000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	167000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1385000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1438000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	103000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	95000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	300000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	375000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	174000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	160000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	577000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	630000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	808000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	808000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1066000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1121000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	258000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	313000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	808000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	808000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	303000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	72000000	USD
CY2021Q4	glw	Deferred Tax Assets Loss And Tax Credit Carry Forward1 DeferredTaxAssetsLossAndTaxCreditCarryForward1	375000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	167000000	USD
CY2021	glw	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	13000000	USD
CY2021	glw	Deferred Tax Assets Valuation Allowance Net Deductions And Other DeferredTaxAssetsValuationAllowanceNetDeductionsAndOther	42000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	138000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	215000000	USD
CY2020	glw	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	27000000	USD
CY2020	glw	Deferred Tax Assets Valuation Allowance Net Deductions And Other DeferredTaxAssetsValuationAllowanceNetDeductionsAndOther	75000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	167000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	317000000	USD
CY2019	glw	Deferred Tax Assets Valuation Allowance Additions DeferredTaxAssetsValuationAllowanceAdditions	10000000	USD
CY2019	glw	Deferred Tax Assets Valuation Allowance Net Deductions And Other DeferredTaxAssetsValuationAllowanceNetDeductionsAndOther	112000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	215000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	131000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	62000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	435000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	54000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	19000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	17000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	53000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	21000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions		USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions		USD
CY2021	glw	Unrecognized Tax Benefits Settlements And Lapse Of Statute Of Limitations UnrecognizedTaxBenefitsSettlementsAndLapseOfStatuteOfLimitations	-3000000	USD
CY2020	glw	Unrecognized Tax Benefits Settlements And Lapse Of Statute Of Limitations UnrecognizedTaxBenefitsSettlementsAndLapseOfStatuteOfLimitations	-3000000	USD
CY2019	glw	Unrecognized Tax Benefits Settlements And Lapse Of Statute Of Limitations UnrecognizedTaxBenefitsSettlementsAndLapseOfStatuteOfLimitations	-378000000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	36000000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	58000000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	54000000	USD
CY2021Q4	glw	Precious Metals PreciousMetals	3500000000	USD
CY2020Q4	glw	Precious Metals PreciousMetals	3400000000	USD
CY2021	us-gaap	Depletion Depletion	28000000	USD
CY2020	us-gaap	Depletion Depletion	24000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	178000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	29773000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	29405000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	131000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	62000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	120000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	102000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	35000000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13969000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	13663000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15804000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	15742000000	USD
CY2019	us-gaap	Depletion Depletion	16000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	1935000000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	495000000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	30000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	2460000000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-39000000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	2421000000	USD
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	8900000000	USD
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	6500000000	USD
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	9000000000.0	USD
CY2020Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	6500000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1962000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	814000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1148000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2017000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	709000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1308000000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	129000000	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Intangible Assets DisposalGroupIncludingDiscontinuedOperationIntangibleAssets	24000000	USD
CY2021	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	7000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	120000000	USD
CY2021Q4	glw	Contract With Customer Liability Deferred Revenue Noncurrent ContractWithCustomerLiabilityDeferredRevenueNoncurrent	764000000	USD
CY2020Q4	glw	Contract With Customer Liability Deferred Revenue Noncurrent ContractWithCustomerLiabilityDeferredRevenueNoncurrent	872000000	USD
CY2021Q4	glw	Settlement Liability Noncurrent SettlementLiabilityNoncurrent	58000000	USD
CY2020Q4	glw	Settlement Liability Noncurrent SettlementLiabilityNoncurrent	117000000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1072000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1148000000	USD
CY2021Q4	glw	Share Repurchase Liability Noncurrent ShareRepurchaseLiabilityNoncurrent	517000000	USD
CY2020Q4	glw	Share Repurchase Liability Noncurrent ShareRepurchaseLiabilityNoncurrent		USD
CY2021Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	336000000	USD
CY2020Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	148000000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	690000000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	613000000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1026000000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	761000000	USD
CY2021Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	164000000	USD
CY2020Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	123000000	USD
CY2021Q4	glw	Receivable Noncurrent Disputed Tax Deposit ReceivableNoncurrentDisputedTaxDeposit	350000000	USD
CY2020Q4	glw	Receivable Noncurrent Disputed Tax Deposit ReceivableNoncurrentDisputedTaxDeposit	365000000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	741000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	680000000	USD
CY2021Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	318000000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	435000000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	483000000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	537000000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2056000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2140000000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	824000000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	572000000	USD
CY2021Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	196000000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	173000000	USD
CY2021Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	144000000	USD
CY2020Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	189000000	USD
CY2021Q4	glw	Contract With Customer Liability Deferred Revenue Current ContractWithCustomerLiabilityDeferredRevenueCurrent	148000000	USD
CY2020Q4	glw	Contract With Customer Liability Deferred Revenue Current ContractWithCustomerLiabilityDeferredRevenueCurrent	152000000	USD
CY2021Q4	glw	Settlement Liability Current SettlementLiabilityCurrent	58000000	USD
CY2020Q4	glw	Settlement Liability Current SettlementLiabilityCurrent	58000000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	223000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	211000000	USD
CY2021Q4	glw	Share Repurchase Liability Current ShareRepurchaseLiabilityCurrent	506000000	USD
CY2020Q4	glw	Share Repurchase Liability Current ShareRepurchaseLiabilityCurrent		USD
CY2021Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	94000000	USD
CY2020Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	96000000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	946000000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	986000000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	3139000000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2437000000	USD
CY2021Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	707000000	USD
CY2020Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	887000000	USD
CY2021Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	49000000	USD
CY2020Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	155000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	258000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	313000000	USD
CY2021Q4	us-gaap	Accrued Rent Noncurrent AccruedRentNoncurrent	691000000	USD
CY2020Q4	us-gaap	Accrued Rent Noncurrent AccruedRentNoncurrent	633000000	USD
CY2021Q4	us-gaap	Loss Contingency Accrual Carrying Value Noncurrent LossContingencyAccrualCarryingValueNoncurrent	35000000	USD
CY2020Q4	us-gaap	Loss Contingency Accrual Carrying Value Noncurrent LossContingencyAccrualCarryingValueNoncurrent	94000000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	1041000000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	798000000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5192000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5017000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	55000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	81000000	USD
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings		USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	75000000	USD
CY2021Q4	us-gaap	Debt Current DebtCurrent	55000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	156000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	7044000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	7897000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	55000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	81000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	6989000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7816000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7000000000.0	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7800000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	55000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	141000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	293000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	166000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	36000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	6353000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	4358000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	4665000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Plan Assets DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	3627000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Plan Assets DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	3758000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	4110000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	4247000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	3627000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	3603000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0625	pure
CY2020Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0650	pure
CY2021Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.05	pure
CY2020Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.05	pure
CY2021	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2027
CY2020	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2027
CY2021	glw	Credit Risk Of Plan Assets Long Duration Corporate Bonds CreditRiskOfPlanAssetsLongDurationCorporateBonds	0.56	pure
CY2021	glw	Currency Fluctuations Assets Invested In Non Us Investments CurrencyFluctuationsAssetsInvestedInNonUsInvestments	0.06	pure
CY2021Q4	glw	Liquidity Risk Longterm Investments In Private Equity And Real Estate LiquidityRiskLongtermInvestmentsInPrivateEquityAndRealEstate	0.01	pure
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	98000000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	76000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	108000000	USD
CY2021Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	284000000	USD
CY2021Q4	us-gaap	Contractual Obligation ContractualObligation	18078000000	USD
CY2021Q4	glw	Guarantor And Contractual Obligations GuarantorAndContractualObligations	18362000000	USD
CY2021Q4	us-gaap	Foreign Currency Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months	47000000	USD
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	24000000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	98000000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	98000000	USD
CY2021	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	803000000	USD
CY2021Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	13543000000	USD
CY2020Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	14740000000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	500000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	271000000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	193000000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	344000000	USD
CY2021Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	52000000	USD
CY2020Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	60000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	47000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-19000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	72000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Reclassification For Discontinuance Before Tax OtherComprehensiveIncomeLossCashFlowHedgeReclassificationForDiscontinuanceBeforeTax	14000000	USD
CY2021Q4	glw	Other Current Assets Fair Value Disclosure OtherCurrentAssetsFairValueDisclosure	352000000	USD
CY2020Q4	glw	Other Current Assets Fair Value Disclosure OtherCurrentAssetsFairValueDisclosure	152000000	USD
CY2020Q4	us-gaap	Equity Securities Fvni Noncurrent EquitySecuritiesFVNINoncurrent	137000000	USD
CY2021Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	175000000	USD
CY2020Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	139000000	USD
CY2021Q4	us-gaap	Accrued Liabilities Fair Value Disclosure AccruedLiabilitiesFairValueDisclosure	144000000	USD
CY2020Q4	us-gaap	Accrued Liabilities Fair Value Disclosure AccruedLiabilitiesFairValueDisclosure	189000000	USD
CY2021Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	66000000	USD
CY2020Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	155000000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2021Q1	glw	Increase Decrease In Percentage Of Quarterly Common Stock Dividend IncreaseDecreaseInPercentageOfQuarterlyCommonStockDividend	0.09	pure
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2020Q1	glw	Increase Decrease In Percentage Of Quarterly Common Stock Dividend IncreaseDecreaseInPercentageOfQuarterlyCommonStockDividend	0.10	pure
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-8000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	22000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	4000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1906000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	960000000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1079000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	414000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	862000000	USD
CY2019	us-gaap	Convertible Preferred Dividends Net Of Tax ConvertiblePreferredDividendsNetOfTax	98000000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1079000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	414000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	960000000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	828000000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	761000000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	776000000
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	16000000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	11000000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	8000000
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	115000000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	844000000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	772000000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	899000000
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.28
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.07
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	31000000
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	117000000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2000000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	39000000
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	190000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	207000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	56000000	USD
CY2021	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	37000000	USD
CY2020	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	12000000	USD
CY2019	us-gaap	Proceeds And Excess Tax Benefit From Sharebased Compensation ProceedsAndExcessTaxBenefitFromSharebasedCompensation	9000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	17095000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.60
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	4818000
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	19.85
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	373000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	21.40
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	11904000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.31
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y7M2D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	177634000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	11830000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	22.32
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P6Y6M25D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	176328000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	6573000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	21.19
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y5M1D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	105412000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	97000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.329	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.329	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0448	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.005	pure
CY2020	glw	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Average Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAverageRiskFreeInterestRate	0.005	pure
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y4M24D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y4M24D
CY2020	glw	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Pre Vesting Executive Departure Rate SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPreVestingExecutiveDepartureRate	0.006	pure
CY2019	glw	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Pre Vesting Executive Departure Rate SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsPreVestingExecutiveDepartureRate	0.006	pure
CY2020	glw	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Prevesting Nonexecutive Departure Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPrevestingNonexecutiveDepartureRate	0.025	pure
CY2021	glw	Number Of Material Formations NumberOfMaterialFormations	150	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2021	us-gaap	Revenues Revenues	14082000000	USD
CY2020	us-gaap	Revenues Revenues	11303000000	USD
CY2019	us-gaap	Revenues Revenues	11503000000	USD
CY2020Q1	glw	Revenue Cumulative Adjustments RevenueCumulativeAdjustments	-105000000	USD
CY2020Q1	glw	Revenue Cumulative Adjustments RevenueCumulativeAdjustments	-105000000	USD
CY2021Q4	us-gaap	Assets Assets	30154000000	USD
CY2020Q4	us-gaap	Assets Assets	30775000000	USD
CY2019Q4	us-gaap	Assets Assets	28898000000	USD
CY2020Q3	glw	Investment Liabilities Noncurrent InvestmentLiabilitiesNoncurrent	270000000	USD
CY2020Q1	glw	Revenue Cumulative Adjustments RevenueCumulativeAdjustments	-105000000	USD

Files In Submission

Name	View Source	Status
0001437749-22-003247-index-headers.html	Edgar Link	pending
0001437749-22-003247-index.html	Edgar Link	pending
0001437749-22-003247.txt	Edgar Link	pending
0001437749-22-003247-xbrl.zip	Edgar Link	pending
corninggraph002.jpg	Edgar Link	pending
ex_279738.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
glw-20211231.xsd	Edgar Link	pending
glw-20211231_cal.xml	Edgar Link	unprocessable
glw-20211231_def.xml	Edgar Link	unprocessable
glw-20211231_lab.xml	Edgar Link	unprocessable
glw-20211231_pre.xml	Edgar Link	unprocessable
glw20211231_10k.htm	Edgar Link	pending
glw20211231_10k_htm.xml	Edgar Link	completed
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$GLW
CORNING INC /NY Stock $glw

2021 Q4 Form 10-K Financial Statement

#000143774922003247 Filed on February 14, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GLW CORNING INC /NY Stock $glw

2021 Q4 Form 10-K Financial Statement

#000143774922003247 Filed on February 14, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GLW
CORNING INC /NY Stock $glw