COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Amounts in AOCI Expected to be Amortized and Recognized as a Component of Net Periodic Benefit Cost (Detail) $ in Millions	Dec. 31, 2017 USD ($)
International Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service cost / (benefit)	$ 1
Pension Benefits | Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Prior service cost / (benefit)	193
Medical Benefits | Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Prior service cost / (benefit)	$ 7