Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost of Plans (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. Plans
Schedule of Benefit Obligations Weighted Average Assumptions [Line Items]
Discount rate	3.78%	4.61%	3.56%
Expected return on plan assets	6.50%	7.00%	7.50%
Rate of compensation increase	4.00%	4.00%	3.94%
Non-U.S. Plans
Schedule of Benefit Obligations Weighted Average Assumptions [Line Items]
Discount rate	2.66%	4.03%	3.91%
Expected return on plan assets	5.19%	5.83%	5.53%
Rate of compensation increase	3.00%	3.14%	2.99%