Benefit Plans - Weighted-Average Assumptions Used (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.02%	4.21%	3.63%
Net Periodic Benefit Costs | U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.21%	3.63%	4.51%
Expected long-term return on plan assets	4.28%	3.65%	4.56%
Rate of compensation increase	4.00%	4.00%	4.00%
Net Periodic Benefit Costs | Non-US Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.52%	2.30%	3.73%
Expected long-term return on plan assets	3.29%	3.57%	4.19%
Rate of compensation increase	2.90%	2.89%	2.94%
Net Periodic Benefit Costs | Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.95%	3.60%	4.35%
Expected long-term return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%