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Employee Benefit Plans - Assumption Rates Used for Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	3.90%	3.00%
Discount rate maximum	4.20%	3.60%
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	1.80%	1.80%
Discount rate maximum	2.90%	2.40%
Salary increase minimum	1.80%	1.80%
Salary increase maximum	3.40%	3.30%

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- Definition

Defined benefit plan assumptions used calculating benefit obligation discount rate maximum.

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- Definition

Defined benefit plan assumptions used calculating benefit obligation discount rate minimum.

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- Definition

Defined benefit plan assumptions used calculating benefit obligation rate of compensation increase maximum.

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- Definition

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- Definition

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