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FINANCIAL INSTRUMENTS - Other Comprehensive Income (Loss) (Details) - Net Investment Hedging - Other comprehensive income (loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Foreign currency
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	$ 0	$ 1
Cross-currency swaps
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	44	35
Foreign currency-denominated debt
Derivative Instruments, Gain (Loss)
Gains and (losses) on derivative instruments	$ 25	$ 8

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Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CCC
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998896-113959

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