Employee Benefit and Retirement Plans - Schedule of Weighted-Average Assumptions Used to Determine Benefit Obligation (Detail)	Dec. 31, 2017	Dec. 31, 2016
Pension Benefits [Member] | United States Pension Plan of US Entity [Member]
Defined Contribution Plan Disclosure [Line Items]
Discount rate	3.48%	3.98%
Long-term rate of compensation increase	2.50%	2.50%
Pension Benefits [Member] | International [Member]
Defined Contribution Plan Disclosure [Line Items]
Discount rate	2.24%	2.35%
Long-term rate of compensation increase	3.47%	3.53%
Postretirement Benefits [Member]
Defined Contribution Plan Disclosure [Line Items]
Discount rate	3.32%	3.75%
Current health care cost trend rates	6.70%	8.67%
Ultimate health care cost trend rates	4.50%	4.50%