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Employee Benefit Plans - Assumption Rates Used for Net Periodic Benefit Costs (Detail)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
United States plan [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate: 3.80% 4.58% 4.95%
Expected return on assets: 6.30% 6.33%  
Expected return on assets, minimum:     5.50%
Expected return on assets, maximum:     6.50%
International plans [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate minimum: 3.46% 4.50% 5.25%
Discount rate maximum: 4.40% 5.60% 5.65%
Salary increase minimum: 2.00% 2.00% 2.00%
Salary increase maximum: 3.53% 4.00% 4.33%
Expected return on assets, minimum: 3.50% 4.50% 4.50%
Expected return on assets, maximum: 5.82% 6.51% 7.06%