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Weighted-Average Assumptions To Determine Net Periodic Pension Cost (Detail)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
U.S. Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 4.20% 5.10% 4.20%
Expected rate of return on plan assets 7.25% 7.75% 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 2.99% 4.03% 3.81%
Expected rate of return on plan assets 5.96% 6.17% 6.08%
Rate of compensation increase 3.26% 3.63% 3.47%