Employee Benefits - Weighted-Average Actuarial Assumption Used to Determine Expense (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.20%	3.90%	4.70%
Expected return on plan assets	7.30%	7.30%	7.30%
Rate of compensation increase	3.25%	3.25%	3.25%
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.03%	2.74%	4.18%
Expected return on plan assets	6.40%	6.24%	6.27%
Rate of compensation increase	1.98%	2.00%	2.66%