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Financial Instruments (Tables)
 9 Months Ended
Sep. 30, 2025
Fair Value Disclosures [Abstract]  
Schedule of Notional Amounts of Outstanding Derivative Positions
The following table summarizes the notional amounts and respective fair values of Corning’s derivative financial instruments on a gross basis (in millions):
September 30, 2025December 31, 2024
Notional amount
Fair value asset (1)
Fair value liability (1)
Notional amount
Fair value asset (1)
Fair value liability (1)
Derivatives designated as hedging instruments (2):
Foreign exchange and precious metals lease contracts (3)
$1,452 $74 $(12)$928 $106 $(69)
Derivatives not designated as hedging instruments:     
Foreign exchange contracts2,939 13 (20)2,339 14 (77)
Translated earnings contracts (4)
10,902 652 (246)9,817 859 (327)
Cross currency swap contracts571 (167)439 (148)
Total derivatives$15,864 $739 $(445)$13,523 $979 $(621)
Current$447 $(163)$619 $(348)
Non-current292 (282)360 (273)
Total derivatives$739 $(445) $979 $(621)
(1)All of the Company’s derivative contracts are measured at fair value and are classified as Level 2 within the fair value hierarchy. Derivative assets are presented in other current assets or other assets in the consolidated balance sheets. Derivative liabilities are presented in other accrued liabilities or other liabilities in the consolidated balance sheets.
(2)The amounts above do not include €750 million ($874 million equivalent) and €850 million ($879 million equivalent) of euro-denominated debt as of September 30, 2025 and December 31, 2024, respectively, which is a non-derivative financial instrument designated as a net investment hedge.
(3)As of September 30, 2025 and December 31, 2024, derivatives designated as hedging instruments include foreign exchange cash flow hedges and net investment hedges with gross notional amounts of $1,452 million and $928 million, respectively, and fair value hedges of leased precious metals with gross notional amounts of 7,989 troy ounces and 12,694 troy ounces, respectively. Fair value assets include designated derivatives pertaining to precious metals lease contracts in the amounts of $7 million and $104 million as of September 30, 2025 and December 31, 2024, respectively. Fair value liabilities include designated derivatives pertaining to precious metals lease contracts in the amounts of $12 million as of September 30, 2025.
(4)The Company has deferred payments associated with its purchased option contracts that are classified as non-derivative liabilities and will be settled by the end of the option contract term. As of September 30, 2025 and December 31, 2024, the Company has $162 million and $141 million recorded in other accrued liabilities and $46 million and $172 million recorded in other liabilities, respectively, in the consolidated balance sheets.
Schedule of Derivatives Not Designated as Hedging Instruments
The following table summarizes the total gross notional coverage for translated earnings contracts (in millions):
September 30,
2025		December 31,
2024
Forward contracts:
Japanese yen-denominated$1,207 $259 
South Korean won-denominated2,122 1,151 
Chinese yuan-denominated1,094 864 
New Taiwan dollar-denominated509 503 
Mexican peso-denominated1,477 320 
Euro-denominated1,636 1,538 
Option contracts: 
Japanese yen-denominated2,810 4,997 
Euro-denominated47 185 
Total gross notional amount for translated earnings contracts$10,902 $9,817 
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)
Three months ended September 30,
Gain (loss) recognized
in other comprehensive
income (loss) (OCI) (1)
Location of gain
reclassified from
accumulated
OCI into income
effective (ineffective)		Gain reclassified
from accumulated
OCI into income
2025202420252024
Hedging relationships for cash flow, net investment and fair value hedges:
Foreign exchange and precious metals lease contracts $39 $(68)Cost of sales$1 $15 
Other expense, net6  
Total designated$39 $(68) $7 $15 
(1)Amount includes a loss of $1 million and a loss of $39 million during the three months ended September 30, 2025 and 2024, respectively, relating to non-derivative financial instruments designated as a net investment hedge.
Nine months ended September 30,
Gain (loss) recognized
in other comprehensive
income (loss) (OCI) (1)
Location of (loss) gain
reclassified from
accumulated
OCI into income
effective (ineffective)		(Loss) gain reclassified
from accumulated
OCI into income
2025202420252024
Hedging relationships for cash flow, net investment and fair value hedges:
Foreign exchange and precious metals lease contracts $12 $(59)Cost of sales$(9)$36 
Other expense, net9 (1)
Total designated$12 $(59)$— $35 
(1)Amount includes a loss of $102 million and a loss of $9 million during the nine months ended September 30, 2025 and 2024, respectively, relating to non-derivative financial instruments designated as a net investment hedge.
(Loss) gain recognized in income (loss)Location of gain (loss) recognized in income (loss)
Three months ended
September 30,		Nine months ended
September 30,
Undesignated derivatives2025202420252024
Foreign exchange contracts$(27)$42 $93 $7 Other expense, net
Translated earnings contracts (1)
33 (157)63 (91)Translated earnings contract gain (loss), net
Cross currency swap contracts(19)10 (10)3 Other expense, net
Total undesignated$(13)$(105)$146 $(81)
(1)For the three and nine months ended September 30, 2025, amount includes non-cash pre-tax realized losses of $94 million and $202 million, respectively, and for the three and nine months ended September 30, 2024, amount includes non-cash pre-tax realized losses of $24 million and $81 million, respectively, related to the premiums of expired option contracts.