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Income Taxes - Operating loss carryforwards (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating losses    
Net operating loss carryforwards $ 64 $ 32
Net operating loss carryforwards, federal 5  
Net operating loss carryforwards, state 14  
Net operating loss carryforwards, foreign 45  
Canada    
Operating losses    
Net operating loss carryforwards, foreign $ 17  
Foreign carryforward period (in years) 20 years  
Argentina    
Operating losses    
Net operating loss carryforwards, foreign $ 9  
Foreign carryforward period (in years) 5 years  
Australia    
Operating losses    
Net operating loss carryforwards, foreign $ 8