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BASIS OF PRESENTATION (New Accounting Pronouncements) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of products sold	$ 1,648	$ 1,579	$ 4,857	$ 4,413
Marketing, selling and administrative	1,104	1,163	3,215	3,435
Research and development	1,280	1,561	4,965	4,543
Other income (net)	(508)	(232)	(912)	(1,497)
Gain/(Loss) on Investments	(97)	(5)	244	(17)
Other Comprehensive Income (Loss)	(4)	(27)	36	(48)
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of products sold		1,572		4,393
Marketing, selling and administrative		1,147		3,388
Research and development		1,543		4,490
Other income (net)		$ (191)		$ (1,377)
ASU 2014-09 - Revenue Recognition [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Expected reduction in revenue	53		151
Cumulative effect of an accounting change on retained earnings	168		168
Contract with Customer, Asset, Net	214		214
Accounting Standards Update 2017-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Expected reduction in other income	4		16
Cumulative effect of an accounting change on retained earnings	130		130
Contract with Customer, Asset, Net	167		167
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other Comprehensive Income (Loss)			(36)
Cumulative effect of an accounting change on retained earnings	$ 34		$ 34
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of an accounting change on retained earnings					$ 332	$ (787)