BUSINESS OPTIMIZATION CHARGES - Summary of Activity in Reserves related to Business Optimization Initiatives (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 134	$ 117	$ 70
Severance and Other Employee Related Costs
Restructuring Reserve [Roll Forward]
Reserve, beginning balance	101	112	164
Restructuring charges	113	126	83
Payments	(93)	(96)	(140)
Reserve adjustments	(27)	(16)	(19)
Currency translation	(2)	(25)	24
Reserve, ending balance	$ 92	$ 101	$ 112

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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