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Other Noncurrent Liabilities
 12 Months Ended
Dec. 31, 2021
Other Liabilities, Noncurrent [Abstract]  
Other Noncurrent Liabilities Other Noncurrent LiabilitiesOther noncurrent liabilities at December 31, 2021 and 2020 consisted of the following:
 December 31,
 20212020
Pension liabilities$215 $271 
Restructuring and plant closing costs30 9 
Asset retirement obligations26 31 
Other14 27 
Total$285 $338