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Income Taxes - Reconciliation of Total Gross Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of the Company's total gross unrecognized tax benefits      
Balance at beginning of the period $ 93 $ 99 $ 87
Additions and reductions for tax positions of prior years 3   16
Additions and reductions for tax positions of prior years   (20)  
Additions based on tax positions related to the current year 3 11 12
Reductions due to settlements     (16)
Foreign currency translation (4)    
Foreign currency translation   3  
Balance at ending of the period 95 93 99
Unrecognized tax benefits, which if recognized, would impact the Company's effective income tax rate 75 80 86
Accrued interest and penalties 16 14 11
Interest and penalties included in tax expense $ 2 $ 3 $ 1