Benefit Plans - Weighted-Average Assumptions Used (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.21%	3.63%	4.51%
Net Periodic Benefit Costs | U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.63%	4.51%	3.67%
Expected long-term return on plan assets	3.65%	4.56%	3.75%
Rate of compensation increase	4.00%	4.00%	4.37%
Net Periodic Benefit Costs | Non-US Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.04%	4.13%	3.85%
Expected long-term return on plan assets	5.32%	5.95%	5.98%
Rate of compensation increase	2.95%	3.02%	3.02%
Net Periodic Benefit Costs | Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.60%	4.35%	3.40%
Expected long-term return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%