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Employee Benefit Plans - Assumption Rates Used for Net Periodic Benefit Costs (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	3.10%	3.10%	3.20%
Discount rate maximum	3.60%	4.00%	4.20%
Expected return on assets	5.60%	5.60%	5.60%
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate minimum	1.80%	1.80%	2.20%
Discount rate maximum	2.40%	2.80%	3.70%
Salary increase minimum	1.80%	1.80%	2.00%
Salary increase maximum	3.30%	3.50%	4.20%
Expected return on assets, minimum	1.80%	1.80%	1.80%
Expected return on assets, maximum	4.00%	3.00%	3.00%

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost discount rate maximum.

+ References

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost discount rate minimum.

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost expected long term return on assets maximum.

+ References

No definition available.

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost expected long term return on assets minimum.

+ References

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost rate of compensation increase maximum.

+ References

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost rate of compensation increase.

+ References

No definition available.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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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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