Note 9 - Revenues - Disaggregated Revenue by Major Product, Product Portfolio Summary, and Geography (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue		$ 263	$ 267	$ 510	$ 516
Core [Member]
Revenue	[1]	252	258	490	498
Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[1]	135	140	256	275
Ongoing Service Arrangements [Member] | Core [Member]
Revenue	[1]	35	39	71	80
Annuities [Member] | Core [Member]
Revenue	[1]	170	179	327	355
Equipment and Software [Member] | Core [Member]
Revenue	[1]	14	14	29	27
Film and Chemicals [Member] | Core [Member]
Revenue	[1]	68	65	134	116
Growth Products [Member]
Revenue	[2]	1	1	2	2
Other [Member]
Revenue	[3]	10	8	18	16
UNITED STATES
Revenue		123	126	242	238
CANADA
Revenue		5	5	8	8
North America [Member]
Revenue		128	131	250	246
EMEA [Member]
Revenue		81	86	156	171
Asia Pacific [Member]
Revenue		51	45	97	90
Latin America [Member]
Revenue		3	5	7	9
Print [Member]
Revenue		178	186	343	368
Print [Member] | Core [Member]
Revenue	[1]	178	186	343	368
Print [Member] | Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[1]	129	134	243	262
Print [Member] | Ongoing Service Arrangements [Member] | Core [Member]
Revenue	[1]	35	39	71	80
Print [Member] | Annuities [Member] | Core [Member]
Revenue	[1]	164	173	314	342
Print [Member] | Equipment and Software [Member] | Core [Member]
Revenue	[1]	14	13	29	26
Print [Member] | UNITED STATES
Revenue		59	60	111	117
Print [Member] | CANADA
Revenue		4	4	7	7
Print [Member] | North America [Member]
Revenue		63	64	118	124
Print [Member] | EMEA [Member]
Revenue		73	80	141	160
Print [Member] | Asia Pacific [Member]
Revenue		39	37	77	75
Print [Member] | Latin America [Member]
Revenue		3	5	7	9
Advanced Materials And Chemicals [Member]
Revenue		75	73	149	132
Advanced Materials And Chemicals [Member] | Core [Member]
Revenue	[1]	74	72	147	130
Advanced Materials And Chemicals [Member] | Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[1]	6	6	13	13
Advanced Materials And Chemicals [Member] | Annuities [Member] | Core [Member]
Revenue	[1]	6	6	13	13
Advanced Materials And Chemicals [Member] | Equipment and Software [Member] | Core [Member]
Revenue	[1]		1		1
Advanced Materials And Chemicals [Member] | Film and Chemicals [Member] | Core [Member]
Revenue	[1]	68	65	134	116
Advanced Materials And Chemicals [Member] | Growth Products [Member]
Revenue	[2]	1	1	2	2
Advanced Materials And Chemicals [Member] | UNITED STATES
Revenue		54	58	113	105
Advanced Materials And Chemicals [Member] | CANADA
Revenue		1	1	1	1
Advanced Materials And Chemicals [Member] | North America [Member]
Revenue		55	59	114	106
Advanced Materials And Chemicals [Member] | EMEA [Member]
Revenue		8	6	15	11
Advanced Materials And Chemicals [Member] | Asia Pacific [Member]
Revenue		12	8	20	15
Brand [Member]
Revenue		6	4	10	8
Brand [Member] | Other [Member]
Revenue	[3]	6	4	10	8
Brand [Member] | UNITED STATES
Revenue		6	4	10	8
Brand [Member] | North America [Member]
Revenue		6	4	10	8
All Other [Member]
Revenue		4	4	8	8
All Other [Member] | Other [Member]
Revenue	[3]	4	4	8	8
All Other [Member] | UNITED STATES
Revenue		4	4	8	8
All Other [Member] | North America [Member]
Revenue		$ 4	$ 4	$ 8	$ 8

[1] Core includes the Print segment and the Motion Picture and Industrial Film and Chemicals businesses within the Advanced Materials and Chemicals segment, excluding coating and product commercialization services (“Coating Services”).

[2] Growth consists of Coating Services, Analytical Services and Advanced Materials and Functional Printing within the Advanced Materials and Chemicals segment.

[3] Other consists of Intellectual Property Licensing ("IP Licensing") within the Advanced Materials and Chemicals segment, Brand Licensing and Eastman Business Park.