Note 15 - Reportable Segments (Tables)

6 Months Ended

Jun. 30, 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 June 30, 2024
Segment net sales	$	1,113		$	1,014		$	501		$	431		$	249		$	296		$	3,604
Depreciation (1)	$	66		$	110		$	40		$	32		$	17		$	40		$	305
Research, development and engineering expenses (2)	$	66		$	28		$	57		$	26		$	6		$	39		$	222
Income tax (provision) benefit (3)	$	(41	)	$	(68	)	$	(17	)	$	(26	)	$	(4	)	$	4		$	(152	)
Segment net income (loss)	$	143		$	258		$	63		$	97		$	17		$	(23	)	$	555

																Hemlock
																and
																Emerging
	Optical			Display			Specialty			Environmental			Life			Growth
	Communications			Technologies			Materials			Technologies			Sciences			Businesses			Total
Three months ended June 30, 2023
Segment net sales	$	1,066		$	928		$	423		$	457		$	231		$	377		$	3,482
Depreciation (1)	$	64		$	120		$	39		$	32		$	17		$	35		$	307
Research, development and engineering expenses (2)	$	56		$	24		$	57		$	23		$	8		$	41		$	209
Income tax provision (3)	$	(38	)	$	(55	)	$	(9	)	$	(28	)	$	(3	)	$	(11	)	$	(144	)
Segment net income	$	140		$	208		$	33		$	107		$	11		$	26		$	525

																Hemlock
																and
																Emerging
	Optical			Display			Specialty			Environmental			Life			Growth
	Communications			Technologies			Materials			Technologies			Sciences			Businesses			Total
Six months ended June 30, 2024
Segment net sales	$	2,043		$	1,886		$	955		$	886		$	485		$	607		$	6,862
Depreciation (1)	$	132		$	226		$	76		$	64		$	34		$	78		$	610
Research, development and engineering expenses (2)	$	131		$	54		$	117		$	49		$	12		$	75		$	438
Income tax (provision) benefit (3)	$	(69	)	$	(121	)	$	(28	)	$	(54	)	$	(8	)	$	3		$	(277	)
Segment net income (loss)	$	243		$	459		$	107		$	202		$	30		$	(33	)	$	1,008

																Hemlock
																and
																Emerging
	Optical			Display			Specialty			Environmental			Life			Growth
	Communications			Technologies			Materials			Technologies			Sciences			Businesses			Total
Six months ended June 30, 2023
Segment net sales	$	2,191		$	1,691		$	829		$	888		$	487		$	763		$	6,849
Depreciation (1)	$	130		$	243		$	74		$	65		$	34		$	68		$	614
Research, development and engineering expenses (2)	$	116		$	47		$	110		$	47		$	18		$	80		$	418
Income tax provision (3)	$	(81	)	$	(97	)	$	(19	)	$	(50	)	$	(5	)	$	(20	)	$	(272	)
Segment net income	$	299		$	368		$	72		$	189		$	20		$	42		$	990

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

	Three months ended						Six months ended
	June 30,						June 30,
	2024			2023			2024			2023
Net sales of reportable segments	$	3,308		$	3,105		$	6,255		$	6,086
Net sales of Hemlock and Emerging Growth Businesses		296			377			607			763
Impact of constant-currency reporting (1)		(353	)		(239	)		(636	)		(428	)
Consolidated net sales	$	3,251		$	3,243		$	6,226		$	6,421

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

	Three months ended						Six months ended
	June 30,						June 30,
	2024			2023			2024			2023
Net income of reportable segments	$	578		$	499		$	1,041		$	948
Net (loss) income of Hemlock and Emerging Growth Businesses		(23	)		26			(33	)		42
Unallocated amounts:
Impact of constant-currency reporting		(267	)		(174	)		(493	)		(323	)
Translated earnings contract gain, net		27			116			66			108
Translation gain on Japanese yen-denominated debt		54			109			135			127
Research, development, and engineering expenses (1)		(40	)		(42	)		(82	)		(87	)
Amortization of intangibles		(30	)		(31	)		(60	)		(62	)
Interest expense, net		(65	)		(61	)		(126	)		(117	)
Income tax benefit		102			38			156			129
Severance charges		(3	)		(73	)		(3	)		(78	)
Capacity optimization and other charges and credits (2)		(135	)		(64	)		(126	)		(125	)
Other corporate items		(94	)		(62	)		(162	)		(105	)
Net income attributable to Corning Incorporated	$	104		$	281		$	313		$	457