RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS - Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 333	$ 342
Other comprehensive (loss) income, net of tax:
Currency translation adjustments	(359)	(97)
Pension and other postretirement benefit plans	22	14
Hedging activities	(130)	(15)
Net other comprehensive income (loss)	(467)	(98)
Comprehensive (loss) income	$ (134)	244
As previously reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		347
Other comprehensive (loss) income, net of tax:
Currency translation adjustments		30
Pension and other postretirement benefit plans		8
Hedging activities		(15)
Net other comprehensive income (loss)		23
Comprehensive (loss) income		370
Restatement impacts
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(5)
Other comprehensive (loss) income, net of tax:
Currency translation adjustments		(127)
Pension and other postretirement benefit plans		6
Hedging activities		0
Net other comprehensive income (loss)		(121)
Comprehensive (loss) income		(126)
Currency translation adjustments		127
Restatement impacts | Foreign Exchange Rate Used To Translate
Other comprehensive (loss) income, net of tax:
Currency translation adjustments		5
Restatement impacts | Offsetting Balance Sheet Impact Adjustments
Other comprehensive (loss) income, net of tax:
Currency translation adjustments		$ 132