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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss) attributable to Corning Incorporated	$ 499	$ (589)
Foreign currency translation adjustments and other (Note 12)	(110)	264
Net unrealized gains on investments	1
Unamortized (losses) gains and prior service credits for postretirement benefit plans (Note 12)	(52)	1
Net unrealized gains on designated hedges	5
Other comprehensive (loss) income, net of tax	(156)	265
Comprehensive income (loss) attributable to Corning Incorporated	$ 343	$ (324)

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The accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost pursuant to ASC 715-20 and 715-30, after tax as well as adjustments out of other comprehensive income for prior service costs recognized as a component of net period benefit cost during the period, after tax.

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