Subsequent Events (Details)	0 Months Ended
Feb. 12, 2013
Subsequent Events [Abstract]
Foreign currency contract, hedge period	2 years

Notional Amount of Foreign Currency Derivatives, Hedge Period

No definition available.

Name:	glw_NotionalAmountOfForeignCurrencyDerivativesHedgePeriod
Namespace Prefix:	glw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration