Assumptions Used to Determine Benefit Obligations (Detail)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted-average assumptions used to determine benefit obligations, Discount rate		3.45%	3.90%	4.15%
Weighted-average assumptions used to determine benefit obligations, Rate of compensation increase		0.00%	0.00%	0.00%
Weighted-average assumptions used to determine net periodic benefit costs, Discount rate		3.90%	4.15%	3.75%
Weighted-average assumptions used to determine net periodic benefit costs, Expected long-term rate of return on plan assets		5.00%	6.00%	6.00%
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted-average assumptions used to determine benefit obligations, Discount rate		1.10%	1.30%	1.70%
Weighted-average assumptions used to determine benefit obligations, Rate of compensation increase		0.00%	0.00%	0.00%
Weighted-average assumptions used to determine net periodic benefit costs, Discount rate		1.30%	1.70%	1.90%
Weighted-average assumptions used to determine net periodic benefit costs, Expected long-term rate of return on plan assets		1.40%	1.60%	2.00%
Weighted-average assumptions used to determine net periodic benefit costs, Rate of compensation increase	[1]	3.00%	3.00%	3.00%

[1] Represent an average rate for the non-U.S. pension plans. Rate of compensation increase is 4.00% for indirect labor and 2.00% for direct labor for 2017, 2016 and 2015.