RESTRUCTURING AND OTHER EXIT COSTS (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) country
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit costs	$ 8	$ 0
Cash payments for restructuring	30
Noncash restructuring expenses and other adjustments	3
Restructuring and other exit costs, estimated additional restructuring expenses to be recorded	20
Minimum
Restructuring Cost and Reserve [Line Items]
Number of countries in which the entity commenced restructuring actions | country			60
Accrued expenses and other current liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 12		$ 37