Current Investment Allocation Target for Pension Plans and Weighted-Average Asset Allocations (Detail)			12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 U.S. Pension Plans	Dec. 31, 2013 Non-U.S. Pension Plans	Dec. 31, 2013 Equity Securities	Dec. 31, 2012 Equity Securities	Dec. 31, 2013 Equity Securities U.S. Pension Plans	Dec. 31, 2013 Equity Securities Non-U.S. Pension Plans	Dec. 31, 2013 Debt Securities	Dec. 31, 2012 Debt Securities	Dec. 31, 2013 Debt Securities U.S. Pension Plans	Dec. 31, 2013 Debt Securities Non-U.S. Pension Plans	Dec. 31, 2013 Real Estate Securities	Dec. 31, 2012 Real Estate Securities	Dec. 31, 2013 Real Estate Securities U.S. Pension Plans	Dec. 31, 2013 Real Estate Securities Non-U.S. Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation			100.00%	100.00%			55.00%	51.00%			25.00%	39.00%			20.00%	10.00%
Weighted-average Pension plans allocation	100.00%	100.00%			58.00%	51.00%			28.00%	35.00%			14.00%	14.00%