v3.7.0.1
Weighted Average Assumptions to Determine Benefit Obligations (Detail)
Dec. 31, 2016
Dec. 31, 2015
U.S. [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 3.94% 4.10%
Non-U.S. [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 2.53% 3.46%
Rate of compensation increase 4.47% 4.65%