Weighted-Average Assumptions used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.10%	4.80%	5.60%
United States Pension Plans of US Entity, Defined Benefits
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.10%	4.80%	5.60%
Expected long-term return on plan assets	7.80%	8.30%	8.30%
Foreign
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.20%	4.90%	5.40%
Expected long-term return on plan assets	6.20%	6.30%	6.40%
Rate of compensation increase	3.40%	3.50%	3.50%