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OTHER EXPENSE, NET - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Schedule Of Other Income And Expenses [Line Items]
Milestone achievement, included in net gain on sale of assets	$ 0	$ 0	$ 23	$ 1
Milestone Payment Related To Certain Product
Schedule Of Other Income And Expenses [Line Items]
Milestone achievement, included in net gain on sale of assets			$ 25

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[Line Items] for Schedule Of Other Income And Expenses [Table]

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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