OTHER INCOME (NET) OTHER INCOME (NET) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Interest Expense	$ 656	$ 183	$ 196
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	1,599	(27)	(1)
Other Income Received From Alliance Partners	(1,360)	(1,353)	(1,351)
Divestiture gain	(1,168)	(178)	(164)
Business Combination, Acquisition Related Costs	657	0	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	523	0	0
Investment Income, Interest	(464)	(173)	(126)
Business Combination, Integration Related Costs	415	0	0
Restructuring Charges	301	131	293
Loss/(gain) on equity investments	(279)	512	(23)
Gain (Loss) Related to Litigation Settlement	77	76	(487)
Alliance Transitional Services	(37)	(12)	(37)
Impairment of Intangible Assets, Finite-lived	15	64	0
Equity in net loss of affiliates	4	(93)	(75)
Gain (Loss) on Extinguishment of Debt	0	0	109
Other Other Income Expense	(1)	16	(19)
Other Nonoperating Income (Expense)	$ 938	$ (854)	$ (1,685)