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Employee Benefit Plans - Assumption Rates Used for Benefit Obligations (Detail)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate minimum 2.50% 3.90%
Discount rate maximum 3.20% 4.20%
Foreign Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate minimum 0.90% 1.80%
Discount rate maximum 2.30% 2.90%
Salary increase minimum 1.80% 1.80%
Salary increase maximum 3.10% 3.40%