Weighted-Average Assumptions to Determine Net Periodic Pension Cost (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	4.50%	4.20%	5.10%
Expected rate of return on plan assets	6.75%	7.25%	7.75%
Rate of compensation increase	4.00%	4.00%	4.00%
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.11%	2.99%	4.03%
Expected rate of return on plan assets	5.87%	5.96%	6.17%
Rate of compensation increase	3.18%	3.26%	3.63%