GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	$ 16,096	$ 16,065
Finite other intangible assets, accumulated amortization	(5,390)	(4,143)
Finite other intangible assets, net	10,706	11,922
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	1,643	1,671
Intangible Assets, Gross (Excluding Goodwill)	17,739	17,736
Other intangible assets, net	12,349	13,593
Trademarks / tradenames
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	1,643	1,671
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	4,366	4,343
Finite other intangible assets, accumulated amortization	(1,616)	(1,361)
Finite other intangible assets, net	2,750	2,982
Trademarks / tradenames
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	2,433	2,433
Finite other intangible assets, accumulated amortization	(1,055)	(455)
Finite other intangible assets, net	1,378	1,978
Customer-related
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	8,994	8,986
Finite other intangible assets, accumulated amortization	(2,506)	(2,229)
Finite other intangible assets, net	6,488	6,757
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	303	303
Finite other intangible assets, accumulated amortization	(213)	(98)
Finite other intangible assets, net	$ 90	$ 205