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Employee Benefit Plans - Assumption Rates Used for Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	3.00%	3.10%
Discount rate maximum	3.60%	4.00%
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	1.80%	1.80%
Discount rate maximum	2.40%	2.80%
Salary increase minimum	1.80%	1.80%
Salary increase maximum	3.30%	3.50%

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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