Note 14 - Reportable Segments (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

																Hemlock
																and
																Emerging
	Optical			Display			Specialty			Environmental			Life			Growth
	Communications			Technologies			Materials			Technologies			Sciences			Businesses			Total
Three months ended March 31, 2023
Segment net sales	$	1,125		$	763		$	406		$	431		$	256		$	386		$	3,367
Depreciation (1)	$	66		$	123		$	35		$	33		$	17		$	33		$	307
Research, development and engineering expenses (2)	$	60		$	23		$	53		$	24		$	10		$	39		$	209
Income tax provision (3)	$	(43	)	$	(42	)	$	(10	)	$	(22	)	$	(2	)	$	(9	)	$	(128	)
Segment net income	$	159		$	160		$	39		$	82		$	9		$	16		$	465

																Hemlock
																and
																Emerging
	Optical			Display			Specialty			Environmental			Life			Growth
	Communications			Technologies			Materials			Technologies			Sciences			Businesses			Total
Three months ended March 31, 2022
Segment net sales	$	1,198		$	959		$	493		$	409		$	310		$	375		$	3,744
Depreciation (1)	$	59		$	156		$	40		$	33		$	14		$	38		$	340
Research, development and engineering expenses (2)	$	55		$	31		$	53		$	25		$	9		$	40		$	213
Income tax provision (3)	$	(45	)	$	(63	)	$	(20	)	$	(20	)	$	(11	)	$	(1	)	$	(160	)
Segment net income (loss)	$	166		$	236		$	75		$	74		$	42		$	(8	)	$	585

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Three months ended
	March 31,
	2023			2022
Net sales of reportable segments	$	2,981		$	3,369
Net sales of Hemlock and Emerging Growth Businesses		386			375
Impact of constant currency reporting (1)		(189	)		(64	)
Consolidated net sales	$	3,178		$	3,680

Reconciliation of Net Income (Loss) from Segments to Consolidated [Table Text Block]

	Three months ended
	March 31,
	2023			2022
Net income of reportable segments	$	449		$	593
Net income (loss) of Hemlock and Emerging Growth Businesses		16			(8	)
Unallocated amounts:
Impact of constant currency reporting		(149	)		(63	)
(Loss) gain on foreign currency hedges related to translated earnings		(8	)		129
Translation gain on Japanese yen-denominated debt		18			84
Research, development, and engineering expenses		(45	)		(35	)
Amortization of intangibles		(31	)		(31	)
Interest expense, net		(56	)		(61	)
Income tax benefit (provision)		91			(20	)
Restructuring, impairment and other charges and credits		(66	)		(33	)
Gain on sale of business					53
Other corporate items		(43	)		(27	)
Net income attributable to Corning Incorporated	$	176		$	581