Saving Plans, Pension and Post Retirement Benefits - Weighted Average Risk Target Ranges Per Asset Class (Detail)	12 Months Ended
	Dec. 31, 2013
International Pension Plans | Common and preferred stock
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
International Pension Plans | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
International Pension Plans | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
International Pension Plans | Common and collective funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	100.00%
International Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
International Pension Plans | Group annuity contract
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
International Pension Plans | Cash and other investments
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
Minimum | U.S. Pension Plans | Common and preferred stock
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
Minimum | U.S. Pension Plans | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	20.00%
Minimum | U.S. Pension Plans | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	10.00%
Minimum | U.S. Pension Plans | Common and collective funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	25.00%
Minimum | U.S. Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
Minimum | U.S. Pension Plans | Group annuity contract
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
Minimum | U.S. Pension Plans | Cash and other investments
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	0.00%
Maximum | U.S. Pension Plans | Common and preferred stock
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	10.00%
Maximum | U.S. Pension Plans | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	30.00%
Maximum | U.S. Pension Plans | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	30.00%
Maximum | U.S. Pension Plans | Common and collective funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	55.00%
Maximum | U.S. Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	15.00%
Maximum | U.S. Pension Plans | Group annuity contract
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	5.00%
Maximum | U.S. Pension Plans | Cash and other investments
Defined Benefit Plan Disclosure [Line Items]
Target Range for Asset Class	10.00%