Note 17 - Financial Instruments - Derivative Liability Key Inputs in Determination of Fair Value for Embedded Conversion Features (Details) $ / shares in Units, $ in Millions	Mar. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares	Feb. 26, 2021 USD ($)
Series B Preferred Stock [Member]
Total value of embedded derivative liability ($ millions)	$ 1	$ 1	$ 1
Series C Preferred Stock [Member]
Total value of embedded derivative liability ($ millions)			$ 2
Fair Value, Inputs, Level 3 [Member] | Series B Preferred Stock [Member]
Total value of embedded derivative liability ($ millions)	$ 1	$ 1
Kodak's closing stock price (in dollars per share) | $ / shares	$ 4.10	$ 3.05
Alternative Investment, Measurement Input	0.2647	0.2719
Fair Value, Inputs, Level 3 [Member] | Series B Preferred Stock [Member] | Measurement Input, Price Volatility [Member]
Alternative Investment, Measurement Input	0.5000	0.5000
Fair Value, Inputs, Level 3 [Member] | Series B Preferred Stock [Member] | Measurement Input, Risk Free Interest Rate [Member]
Alternative Investment, Measurement Input	0.0379	0.0417
Fair Value, Inputs, Level 3 [Member] | Series C Preferred Stock [Member]
Total value of embedded derivative liability ($ millions)	$ 1	$ 1
Kodak's closing stock price (in dollars per share) | $ / shares	$ 4.10	$ 3.05
Alternative Investment, Measurement Input	0.2847	0.2919
Fair Value, Inputs, Level 3 [Member] | Series C Preferred Stock [Member] | Measurement Input, Price Volatility [Member]
Alternative Investment, Measurement Input	0.5000	0.5000
Fair Value, Inputs, Level 3 [Member] | Series C Preferred Stock [Member] | Measurement Input, Risk Free Interest Rate [Member]
Alternative Investment, Measurement Input	0.0379	0.0417
Fair Value, Inputs, Level 3 [Member] | Two Thousand Twenty One Convertible Notes [Member]
Total value of embedded derivative liability ($ millions)	$ 3	$ 2
Kodak's closing stock price (in dollars per share) | $ / shares	$ 4.10	$ 3.05
Fair Value, Inputs, Level 3 [Member] | Two Thousand Twenty One Convertible Notes [Member] | Measurement Input, Price Volatility [Member]
Alternative Investment, Measurement Input	0.5000	0.5000
Fair Value, Inputs, Level 3 [Member] | Two Thousand Twenty One Convertible Notes [Member] | Measurement Input, Risk Free Interest Rate [Member]
Alternative Investment, Measurement Input	0.0379	0.0417
Fair Value, Inputs, Level 3 [Member] | Two Thousand Twenty One Convertible Notes [Member] | Measurement Input, Credit Spread [Member]
Alternative Investment, Measurement Input	0.2547	0.2619