INTANGIBLE ASSETS AND GOODWILL - Composition of Acquired Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, gross	$ 3,560	$ 3,330
Accumulated amortization	(808)	(674)
Definite-lived Intangible Assets, net	2,752	2,656
Acquired Indefinite-lived Intangible Assets [Line Items]
Total Intangible Assets	8,641	8,380
Indefinite-lived Intangible Brand Assets
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Brand Assets	5,889	5,724
Costs incurred to obtain contracts with customers
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, gross	1,588	1,347
Contracts acquired in business combinations and other
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets, gross	$ 1,972	$ 1,983