Note 14 - Reportable Segments (Tables)

3 Months Ended

Mar. 31, 2024

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, 2024
Segment net sales	$	930		$	872		$	454		$	455		$	236		$	311		$	3,258
Depreciation (1)	$	66		$	116		$	36		$	32		$	17		$	38		$	305
Research, development and engineering expenses (2)	$	65		$	26		$	60		$	23		$	6		$	36		$	216
Income tax provision (3)	$	(28	)	$	(53	)	$	(11	)	$	(28	)	$	(4	)	$	(1	)	$	(125	)
Segment net income (loss)	$	100		$	201		$	44		$	105		$	13		$	(10	)	$	453

																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

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

	Three months ended
	March 31,
	2024			2023
Net sales of reportable segments	$	2,947		$	2,981
Net sales of Hemlock and Emerging Growth Businesses		311			386
Impact of constant-currency reporting (1)		(283	)		(189	)
Consolidated net sales	$	2,975		$	3,178

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

	Three months ended
	March 31,
	2024			2023
Net income of reportable segments	$	463		$	449
Net (loss) income of Hemlock and Emerging Growth Businesses		(10	)		16
Unallocated amounts:
Impact of constant-currency reporting		(226	)		(149	)
Translated earnings contract gain (loss), net		39			(8	)
Translation gain on Japanese yen-denominated debt		81			18
Research, development, and engineering expenses		(42	)		(45	)
Amortization of intangibles		(30	)		(31	)
Interest expense, net		(61	)		(56	)
Income tax benefit		54			91
Restructuring, impairment and other charges and credits		9			(66	)
Other corporate items		(68	)		(43	)
Net income attributable to Corning Incorporated	$	209		$	176