OTHER EXPENSE (INCOME), NET (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Nonoperating Income (Expense) [Abstract]
Interest expense	$ 362	$ 45
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(4)	44
Royalties and licensing income	(410)	(308)
Disposal Group, Not Discontinued Operation, (Gain) Loss on Disposal	(16)	0
Business Acquisition, Transaction Costs	0	165
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	556	0
Investment income	(61)	(56)
Business Combination, Integration Related Costs	174	22
Restructuring Charges	160	12
Equity investment, (gain) loss	339	(175)
Litigation and other settlements	32	1
Transition and other service fees	(61)	(2)
Reversion excise tax	76	0
Other	16	(9)
Other Nonoperating (Income) Expense	$ 1,163	$ (261)