Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Fair Value - Fair Value of Financial Instruments (Details)

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Note 9 - Fair Value - Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Reported Value Measurement [Member]    
Non-qualified employee benefit plan investments $ 15 $ 15
Long-term debt (including current portion) (1,606) (1,737)
Reported Value Measurement [Member] | Venator Materials PLC [Member]    
Investment in Venator 0 5
Estimate of Fair Value Measurement [Member]    
Non-qualified employee benefit plan investments 15 15
Long-term debt (including current portion) (1,455) (1,578)
Estimate of Fair Value Measurement [Member] | Venator Materials PLC [Member]    
Investment in Venator $ 0 $ 5