Note 13 - Disaggregated Revenue - Geography (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Total	[1]	$ 252	$ 315	$ 732	$ 913
Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	146	187	419	534
Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	56	70	173	211
Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	44	53	124	153
Brand [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	3	8	8
All Other [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	2	8	7
United States [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	90	122	268	342
United States [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	29	48	90	125
United States [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	25	36	77	107
United States [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	30	33	85	95
United States [Member] | Brand [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	3	8	8
United States [Member] | All Other [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	2	8	7
Canada [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	8	7	18	17
Canada [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	5	4	11	9
Canada [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	2	6	6
Canada [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]		1	1	2
North America [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	98	129	286	359
North America [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	34	52	101	134
North America [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	28	38	83	113
North America [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	30	34	86	97
North America [Member] | Brand [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	3	8	8
North America [Member] | All Other [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	3	2	8	7
Europe, Middle East and Africa [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	87	98	251	298
Europe, Middle East and Africa [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	64	71	181	218
Europe, Middle East and Africa [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	19	21	61	64
Europe, Middle East and Africa [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	4	6	9	16
Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	59	76	171	217
Asia Pacific [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	41	53	116	149
Asia Pacific [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	8	10	26	29
Asia Pacific [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	10	13	29	39
Latin America [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	8	12	24	39
Latin America [Member] | Traditional Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	7	11	21	33
Latin America [Member] | Digital Printing [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]	$ 1	$ 1	$ 3	5
Latin America [Member] | Advanced Materials and Chemicals [Member]
Disaggregation Of Revenue [Line Items]
Total	[1]				$ 1

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