Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Restructuring, Impairment and Plant Closing Costs - Accrued Restructuring Costs By Type of Cost and Initiative (Details)

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Note 7 - Restructuring, Impairment and Plant Closing Costs - Accrued Restructuring Costs By Type of Cost and Initiative (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Beginning Balance $ 31  
Ending Balance 24  
Initiatives for 2022 and Prior [Member]    
Restructuring Charges, Total 0 $ 0
Initiatives 2021 and Prior [Member]    
Restructuring Charges, Total 0 $ 14
Restructuring payments (7)  
Employee Severance [Member]    
Beginning Balance 28  
Ending Balance 22  
Employee Severance [Member] | Initiatives for 2022 and Prior [Member]    
Restructuring Charges, Total 0  
Employee Severance [Member] | Initiatives 2021 and Prior [Member]    
Restructuring payments (6)  
Non-cancelable Lease Cost and Contract Termination Costs [Member]    
Beginning Balance 2  
Ending Balance 2  
Non-cancelable Lease Cost and Contract Termination Costs [Member] | Initiatives for 2022 and Prior [Member]    
Restructuring Charges, Total 0  
Non-cancelable Lease Cost and Contract Termination Costs [Member] | Initiatives 2021 and Prior [Member]    
Restructuring payments 0  
Other Restructuring [Member]    
Beginning Balance 1  
Ending Balance 0  
Other Restructuring [Member] | Initiatives for 2022 and Prior [Member]    
Restructuring Charges, Total 0  
Other Restructuring [Member] | Initiatives 2021 and Prior [Member]    
Restructuring payments $ (1)