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FINANCIAL INSTRUMENTS AND DERIVATIVES - ADDITIONAL INFORMATION (Details) - USD ($) $ in Millions			12 Months Ended
	May 26, 2020	Apr. 07, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 11, 2019
Derivative [Line Items]
Effective portion reclassified from AOCI into income (expense)		$ 48
Senior Unsecured Notes Maturing June 1, 2030 | Senior Notes
Derivative [Line Items]
Debt instrument face amount	$ 750
Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Notional amount			$ 369
Gain (Loss) in AOCI			(18)	$ (17)	$ 5
Effective portion reclassified from AOCI into income (expense)			$ (2)	$ (1)	$ (11)
Foreign exchange forward contracts | Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Debt instrument, term			18 months
Notional amount			$ 369
Treasury Lock | Cash Flow Hedges
Derivative [Line Items]
Debt instrument, term	10 years
Repayments of debt	$ 31
Notional amount						$ 150
Long-term debt, term						10 years
Treasury Lock | Cash Flow Hedges | Senior Unsecured Notes Maturing June 1, 2030
Derivative [Line Items]
Notional amount	$ 150
Cross currency basis swaps | Designated as Hedging Instrument
Derivative [Line Items]
Gain (Loss) in AOCI			$ (3)

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