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Post-Employment and Other Long-Term Employees Benefits - Changes in Benefit Obligation and Plan Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in plan assets:      
Plan assets at fair value at beginning of year $ 718    
Plan assets at fair value at end of year 743 $ 718  
Pension Benefits [Member]      
Change in benefit obligation:      
Benefit obligation at beginning of year 1,216 1,036  
Service cost 36 31 $ 27
Interest cost 21 21 24
Employee contributions 4 4  
Plan amendments   1  
Benefits paid (25) (13)  
Effect of settlement (8) (2)  
Business combination 3    
Actuarial (gain) loss (48) 83  
Foreign currency translation and other adjustments (34) 55  
Benefit obligation at end of year 1,165 1,216 1,036
Change in plan assets:      
Plan assets at fair value at beginning of year 718 597  
Actual return on plan assets 32 84  
Employer contributions 17 17  
Employee contributions 4 4  
Benefits paid (12) (3)  
Effect of settlement (8)    
Business combination 2    
Foreign currency translation and other adjustments (10) 19  
Plan assets at fair value at end of year 743 718 597
Funded status (422) (498)  
Net amount recognized in the balance sheet consisted of the following:      
Non-current assets 15 4  
Current liabilities (11) (9)  
Long-term liabilities (426) (493)  
Net amount recognized (422) (498)  
Other Long-Term Benefit [Member]      
Change in benefit obligation:      
Benefit obligation at beginning of year 101 88  
Service cost 13 11 5
Interest cost 1 1 1
Benefits paid (5) (11)  
Actuarial (gain) loss   3  
Foreign currency translation and other adjustments (16) 9  
Benefit obligation at end of year 94 101 $ 88
Change in plan assets:      
Funded status (94) (101)  
Net amount recognized in the balance sheet consisted of the following:      
Current liabilities (4) (4)  
Long-term liabilities (90) (97)  
Net amount recognized $ (94) $ (101)