RESTATEMENT OF PREVIOUSLY ISSUED CONSOLIDATED FINANCIAL STATEMENTS - Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 247	$ 313	$ 580	$ 655
Other comprehensive income (loss), net of tax:
Currency translation adjustments	189	2	(170)	(95)
Pension and other postretirement benefit plans	(4)	(6)	(26)	(20)
Hedging activities	(4)	(12)	(134)	(27)
Net other comprehensive (loss) income	189	(4)	(278)	(102)
Comprehensive income	$ 436	309	$ 302	553
As previously reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		343		690
Other comprehensive income (loss), net of tax:
Currency translation adjustments		(78)		(48)
Pension and other postretirement benefit plans		(13)		(21)
Hedging activities		(12)		(27)
Net other comprehensive (loss) income		(77)		(54)
Comprehensive income		266		636
Restatement impacts
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(30)		(35)
Other comprehensive income (loss), net of tax:
Currency translation adjustments		80		(47)
Pension and other postretirement benefit plans		7		1
Hedging activities		0		0
Net other comprehensive (loss) income		73		(48)
Comprehensive income		43		(83)
Currency translation adjustments		80		47
Restatement impacts \| Foreign Exchange Rate Used To Translate
Other comprehensive income (loss), net of tax:
Currency translation adjustments		54		78
Restatement impacts \| Offsetting Balance Sheet Impact Adjustments
Other comprehensive income (loss), net of tax:
Currency translation adjustments		$ 26		$ 31

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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