GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Other Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ (4,521)	$ (4,428)
Intangible Assets, Gross (Excluding Goodwill)	7,720	7,780
Other intangible assets	3,199	3,352
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,637	2,638
Finite-Lived Intangible Assets, Accumulated Amortization	(1,728)	(1,677)
Finite-Lived Intangible Assets, Net	909	961
Software
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,490	1,489
Finite-Lived Intangible Assets, Accumulated Amortization	(1,007)	(989)
Finite-Lived Intangible Assets, Net	483	500
Trademarks/tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	352	352
Finite-Lived Intangible Assets, Accumulated Amortization	(344)	(343)
Finite-Lived Intangible Assets, Net	8	9
Customer-related
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	3,241	3,301
Finite-Lived Intangible Assets, Accumulated Amortization	(1,442)	(1,419)
Finite-Lived Intangible Assets, Net	$ 1,799	$ 1,882