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Employee Benefit Plans - Assumption Rates Used for Benefit Obligations (Detail) | 12 Months Ended
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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 No definition available. + Details
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- Definition Defined benefit plan assumptions used calculating benefit obligation discount rate minimum. + References No definition available. + Details
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- Definition Defined benefit plan assumptions used calculating benefit obligation rate of compensation increase maximum. + References No definition available. + Details
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- Definition Defined benefit plan assumptions used calculating benefit obligation rate of compensation increase minimum. + References No definition available. + Details
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- Details
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- Details
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