Annual report pursuant to Section 13 and 15(d)

COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Amounts in AOCI Expected to be Amortized and Recognized as a Component of Net Periodic Benefit Cost (Detail)

v2.4.1.9
COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Amounts in AOCI Expected to be Amortized and Recognized as a Component of Net Periodic Benefit Cost (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
U.S. Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Prior service cost / (benefit) $ 168us-gaap_DefinedBenefitPlanFutureAmortizationOfPriorServiceCostCredit
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
U.S. Postretirement Medical Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Prior service cost / (benefit) 5us-gaap_DefinedBenefitPlanFutureAmortizationOfPriorServiceCostCredit
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPostretirementBenefitPlansOfUSEntityDefinedBenefitMember
International Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Prior service cost / (benefit) $ 1us-gaap_DefinedBenefitPlanFutureAmortizationOfPriorServiceCostCredit
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember