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Weighted-Average Assumptions to Determine Benefit Obligations (Detail) - Pension Plans
Dec. 31, 2015
Dec. 31, 2014
U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 4.50% 4.20%
Expected rate of return on plan assets 6.75% 7.25%
Rate of compensation increase 4.00% 4.00%
Non-U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 3.11% 2.99%
Expected rate of return on plan assets 5.87% 5.96%
Rate of compensation increase 3.18% 3.26%