GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 6,513				$ 6,513		$ 6,538
Gross other intangible assets	4,097				4,097		4,055
Less: accumulated amortization	(3,095)				(3,095)		(2,964)
Other intangible assets	1,002				1,002		1,091
Amortization expense	52		$ 54		156	$ 147
Asset Impairment Charges				$ 64
Licensing Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	482				482		510
Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	2,357				2,357		2,357
Capitalized Software, Intangible Asset [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	1,258				1,258		1,156
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
In-process research and development	$ 0				$ 0		$ 32
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 32
Minimum [Member] | Licensing Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					5 years
Minimum [Member] | Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					9 years
Minimum [Member] | Capitalized Software, Intangible Asset [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					3 years
Maximum [Member] | Licensing Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					15 years
Maximum [Member] | Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					15 years
Maximum [Member] | Capitalized Software, Intangible Asset [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					10 years