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Note 3 - Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Net sales $ 3,488 $ 3,615 $ 10,783 $ 10,406
Impact of constant currency reporting (1) [1] 178 24 389
Net sales of reportable segments and Hemlock and Emerging Growth Businesses 3,666 3,639 11,172 10,406
Telecommunication Products [Member]        
Net sales 1,317 1,131 3,828 3,143
Display Products [Member]        
Net sales 558 936 2,223 2,758
Specialty Glass Products [Member]        
Net sales 516 556 1,494 1,490
Environmental Substrate and Filter Products [Member]        
Net sales 393 382 1,130 1,233
Life Science Products [Member]        
Net sales 297 304 908 917
Product and Service, Other [Member]        
Net sales $ 407 $ 306 $ 1,200 $ 865
[1] This amount primarily represents the impact of foreign currency adjustments in the Display Technologies segment.