OTHER EXPENSE (INCOME), NET (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Nonoperating Income (Expense) [Abstract]
Interest expense	$ 330	$ 357	$ 683	$ 719
Contingent consideration	0	(165)	(510)	391
Royalties and licensing income	(405)	(311)	(772)	(721)
Equity investment (gains)/losses	(148)	(818)	(749)	(480)
Integration expenses	152	166	293	340
Provision for restructuring	78	115	123	275
Litigation and other settlements	44	(1)	36	31
Transition and other service fees	(22)	(50)	(37)	(111)
Investment income	(12)	(25)	(21)	(86)
Reversion excise tax	0	0	0	76
Divestiture losses/(gains)	(11)	9	(11)	(7)
Intangible asset impairment	0	21	0	21
Gain (Loss) on Extinguishment of Debt	0	0	281	0
Other	(8)	(34)	(20)	(21)
Other (income)/expense, net	$ (2)	$ (736)	$ (704)	$ 427