Schedule of Weighted Average Pension Assets Allocations by Category (Detail) (Defined Benefit Pension Plans)	Dec. 31, 2013	Dec. 31, 2012
United States Plan
Defined Benefit Plan Disclosure
Total	100.00%	100.00%
United States Plan | Fixed Income Securities
Defined Benefit Plan Disclosure
Total	86.70%	85.80%
United States Plan | Equity Securities
Defined Benefit Plan Disclosure
Total	12.10%	13.00%
United States Plan | Other than Securities Investment
Defined Benefit Plan Disclosure
Total	1.20%	1.20%
Foreign Plans
Defined Benefit Plan Disclosure
Total	100.00%	100.00%
Foreign Plans | Fixed Income Securities
Defined Benefit Plan Disclosure
Total	77.10%	49.20%
Foreign Plans | Equity Securities
Defined Benefit Plan Disclosure
Total	21.60%	49.60%
Foreign Plans | Other than Securities Investment
Defined Benefit Plan Disclosure
Total	1.30%	1.20%