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Restructuring (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restructuring accrual      
Beginning balance, restructuring reserve $ 45 $ 45  
Charges 28 96 $ 69
Write-down of assets to net realizable value (6) (46)  
Net cash paid, principally severance and related benefits (30) (37) (54)
Other, including foreign exchange translation (6) (13)  
Ending balance, restructuring reserve 31 45 45
Restructuring, Additional Information      
Carrying value of impaired assets 5 1  
Employee Costs      
Restructuring accrual      
Beginning balance, restructuring reserve 38 32  
Charges 3 40  
Net cash paid, principally severance and related benefits (15) (34)  
Other, including foreign exchange translation (6)    
Ending balance, restructuring reserve 20 38 32
Asset Impairment      
Restructuring accrual      
Charges 6 46  
Write-down of assets to net realizable value (6) (46)  
Other Exit Costs      
Restructuring accrual      
Beginning balance, restructuring reserve 7 13  
Charges 19 10  
Net cash paid, principally severance and related benefits (15) (3)  
Other, including foreign exchange translation   (13)  
Ending balance, restructuring reserve $ 11 $ 7 $ 13