OTHER INCOME (NET) OTHER INCOME (NET) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Interest Expense	$ 1,420	$ 656	$ 183
Contingent consideration	(1,757)	523	0
Royalties and licensing income	(1,527)	(1,360)	(1,353)
Equity investment (gains)/losses	(1,228)	(275)	419
Integration expenses	717	415	0
Provision for restructuring	530	301	131
Litigation and other settlements	(194)	77	76
Transition and other service fees	(149)	(37)	(12)
Investment Income	(121)	(464)	(173)
Reversion excise tax	76	0	0
Divestiture gains	(55)	(1,168)	(178)
Intangible asset impairment	21	15	64
Pension and postretirement	(13)	1,599	(27)
Acquisition expenses	0	657	0
Other	(34)	(1)	16
Other (Income)/Expense, Net	$ (2,314)	$ 938	$ (854)