Note 9 - Revenues - Disaggregated Revenue by Major Product, Product Portfolio Summary, and Geography (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Revenue	[1]	$ 247	$ 249
Core [Member]
Revenue	[2]	238	240
Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[2]	121	135
Ongoing Service Arrangements [Member] | Core [Member]
Revenue	[2]	36	41
Annuities [Member] | Core [Member]
Revenue	[2]	157	176
Equipment and Software [Member] | Core [Member]
Revenue	[2]	15	13
Film and Chemicals [Member] | Core [Member]
Revenue	[2]	66	51
Growth Products [Member]
Revenue	[3]	1	1
Other [Member]
Revenue	[4]	8	8
UNITED STATES
Revenue	[1]	119	112
CANADA
Revenue	[1]	3	3
North America [Member]
Revenue	[1]	122	115
EMEA [Member]
Revenue	[1]	75	85
Asia Pacific [Member]
Revenue	[1]	46	45
Latin America [Member]
Revenue	[1]	4	4
Print [Member]
Revenue	[1]	165	182
Print [Member] | Core [Member]
Revenue	[2]	165	182
Print [Member] | Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[2]	114	128
Print [Member] | Ongoing Service Arrangements [Member] | Core [Member]
Revenue	[2]	36	41
Print [Member] | Annuities [Member] | Core [Member]
Revenue	[2]	150	169
Print [Member] | Equipment and Software [Member] | Core [Member]
Revenue	[2]	15	13
Print [Member] | UNITED STATES
Revenue	[1]	52	57
Print [Member] | CANADA
Revenue	[1]	3	3
Print [Member] | North America [Member]
Revenue	[1]	55	60
Print [Member] | EMEA [Member]
Revenue	[1]	68	80
Print [Member] | Asia Pacific [Member]
Revenue	[1]	38	38
Print [Member] | Latin America [Member]
Revenue	[1]	4	4
Advanced Materials And Chemicals [Member]
Revenue	[1]	74	59
Advanced Materials And Chemicals [Member] | Core [Member]
Revenue	[2]	73	58
Advanced Materials And Chemicals [Member] | Plates Inks And Other Consumables [Member] | Core [Member]
Revenue	[2]	7	7
Advanced Materials And Chemicals [Member] | Annuities [Member] | Core [Member]
Revenue	[2]	7	7
Advanced Materials And Chemicals [Member] | Film and Chemicals [Member] | Core [Member]
Revenue	[2]	66	51
Advanced Materials And Chemicals [Member] | Growth Products [Member]
Revenue	[3]	1	1
Advanced Materials And Chemicals [Member] | UNITED STATES
Revenue	[1]	59	47
Advanced Materials And Chemicals [Member] | North America [Member]
Revenue	[1]	59	47
Advanced Materials And Chemicals [Member] | EMEA [Member]
Revenue	[1]	7	5
Advanced Materials And Chemicals [Member] | Asia Pacific [Member]
Revenue	[1]	8	7
Brand [Member]
Revenue	[1]	4	4
Brand [Member] | Other [Member]
Revenue	[4]	4	4
Brand [Member] | UNITED STATES
Revenue	[1]	4	4
Brand [Member] | North America [Member]
Revenue	[1]	4	4
All Other [Member]
Revenue	[1]	4	4
All Other [Member] | Other [Member]
Revenue	[4]	4	4
All Other [Member] | UNITED STATES
Revenue	[1]	4	4
All Other [Member] | North America [Member]
Revenue	[1]	$ 4	$ 4

[1] Sales are reported in the geographic area in which they originate.

[2] 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”).

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

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