Weighted Average Assumptions Used to Determine Benefit Obligations (Detail)	Dec. 31, 2013	Dec. 31, 2012
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.80%	4.10%
United States Pension Plans of US Entity, Defined Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.80%	4.10%
Foreign
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.30%	4.20%
Rate of compensation increase	3.30%	3.40%