Annual report pursuant to Section 13 and 15(d)

COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Weighted Average Actuarial Assumptions Used to Determine the Net Periodic Benefit Cost (Detail)

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COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Weighted Average Actuarial Assumptions Used to Determine the Net Periodic Benefit Cost (Detail)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]      
Document Fiscal Year Focus 2012    
U.S. Pension Benefits
     
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.64% 5.98% 6.58%
Rate of compensation increase 4.50% 4.50% 4.50%
Expected return on assets 8.75% 8.75% 8.75%
U.S. Postretirement Medical Benefits
     
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.47% 5.77% 6.43%
Expected return on assets 8.75% 8.75% 8.75%
International Pension Benefits
     
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 4.63% 5.36% 5.84%
Rate of compensation increase 3.58% 3.57% 3.62%
Expected return on assets 7.20% 7.31% 7.25%