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Note 12 - Retirement Plans and Other Postretirement Benefits (Details Textual) - Kodak Retirement Income Plan [Member]
$ in Millions
3 Months Ended 12 Months Ended
May 31, 2023
USD ($)
Dec. 31, 2022
Mar. 31, 2022
USD ($)
Dec. 31, 2021
Jan. 01, 2022
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease), Remeasurement $ 38   $ (345)    
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease), Change in Discount Rate (9)   376    
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease), Plan Amendment 29   28    
Defined Benefit Plan, Plan Assets, Increase (Decrease), Remeasurement $ (80)   $ (236)    
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Change Due to Subsequent Interim Measurement, Weighted-Average Expected Long-Term Rate of Return on Plan Assets 7.50%   5.20%    
Defined Benefit Plan, Funded Status, Increase (Decrease), Remeasurement $ (118)   $ 109    
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease), Other Assumptions     $ 3    
Minimum [Member]          
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate       9.00% 12.00%
Maximum [Member]          
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate       10.00% 13.00%
Measurement Input, Discount Rate [Member]          
Defined Benefit Plan, Measurement Input 5.08 5.13 4.16 2.54