GOODWILL AND OTHER INTANGIBLE ASSETS - IDENTIFIABLE INTANGIBLE ASSETS (Details) $ in Millions	Dec. 31, 2018 USD ($)
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 31,198
Accumulated Amortization	(5,251)
Intangible Assets with Indefinite Lives
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,618
Accumulated Amortization	0
Intangible Assets with Determinable Lives
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,580
Accumulated Amortization	$ (5,251)