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Weighted Average Assumptions Used in the Measurement Of Benefit Obligation (Detail)
Dec. 31, 2015
Dec. 31, 2014
U.S. Plans    
Schedule of Benefit Obligations Weighted Average Assumptions [Line Items]    
Discount rate 4.12% 3.78%
Rate of compensation increase 4.00% 4.00%
Non-U.S. Plans    
Schedule of Benefit Obligations Weighted Average Assumptions [Line Items]    
Discount rate 2.99% 2.66%
Rate of compensation increase 2.98% 3.00%