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Employee Benefit Plans - Summary of Changes in Benefit Obligation, Plan Assets and Funded Status of Pension Benefit Plans (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
United States [Member]      
Fair value of plan assets at beginning of year $ 360    
Fair value of plan assets at end of year 330 $ 360  
Non-United States Plans [Member]      
Fair value of plan assets at beginning of year 391    
Fair value of plan assets at end of year 366 391  
Pension Benefits [Member]      
Actual return on plan assets (26) 70  
Pension Benefits [Member] | United States [Member]      
Projected benefit obligation at beginning of year 349 308  
Service costs 13 13 $ 4
Interest cost 12 11 3
Actuarial (gains) losses (30) 25  
Benefits paid (9) (8)  
Projected benefit obligation at end of year 335 349 308
Fair value of plan assets at beginning of year 360 312  
Actual return on plan assets (24) 53  
Contributions 3 3  
Benefits paid (9) (8)  
Fair value of plan assets at end of year 330 360 312
Funded status (5) 11  
Pension Benefits [Member] | Non-United States Plans [Member]      
Projected benefit obligation at beginning of year 559 508  
Service costs 26 26 18
Interest cost 9 9 5
Actuarial (gains) losses (29) (2)  
Business combinations 1    
Benefits paid (21) (21)  
Contributions 2 1  
Amendments 2    
Curtailments (3)    
Settlements (12) (4)  
Foreign currency fluctuations and other (21) 42  
Projected benefit obligation at end of year 513 559 508
Fair value of plan assets at beginning of year 391 348  
Actual return on plan assets (2) 17  
Contributions 29 21  
Benefits paid (21) (21)  
Settlements (11) (4)  
Foreign currency fluctuations and other (20) 30  
Fair value of plan assets at end of year 366 391 $ 348
Funded status $ (147) $ (168)