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Employee Benefit Plans - Assumption Rates Used for Benefit Obligations (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
United States plan [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Discount rate: 4.65% 3.78%
International plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Discount rate minimum: 3.50% 3.30%
Discount rate maximum: 4.40% 4.40%
Salary increase minimum: 2.00% 2.00%
Salary increase maximum: 4.40% 3.87%