Pension Plan Assets Classes of Securities (Detail)	Dec. 31, 2013	Dec. 31, 2012
United States Pension Plans of US Entity, Defined Benefits | Equity Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	71.00%	70.00%
United States Pension Plans of US Entity, Defined Benefits | Debt Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	29.00%	30.00%
United States Pension Plans of US Entity, Defined Benefits | All Other
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities		0.00%
Foreign | Equity Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	62.00%	59.00%
Foreign | Debt Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	31.00%	33.00%
Foreign | Real Estate
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	2.00%	2.00%
Foreign | All Other
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	5.00%	6.00%