ACQUISITIONS, GOODWILL AND OTHER INTANGIBLE ASSETS - Other Intangible Assets, Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Additions to intangible assets subject to amortization	$ 356
Amortization of intangible assets	613	$ 539
GE
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	601	519
GE Capital
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	12	$ 20
Technology Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 632