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ACCOUNTING POLICIES (New Accounting Pronouncements) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of Goods and Services Sold	$ 6,547	$ 6,094	$ 4,969
Marketing, selling and administrative	4,551	4,751	4,979
Research and development	6,345	6,482	5,012
Other Nonoperating Income (Expense)	850	1,682	1,448
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Expected reduction in revenue	197
Accounting Standards Update 2017-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	140
Accounting Standards Update 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of Goods and Services Sold		6,066	4,946
Marketing, selling and administrative		4,687	4,911
Research and development		6,411	4,940
Other Nonoperating Income (Expense)		$ 1,519	$ 1,285
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	34
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	36
Accounting Standards Update 2018-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	283
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	600
Other Assets [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	214
Other Assets [Member] \| Accounting Standards Update 2017-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	167
Retained Earnings [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	168
Retained Earnings [Member] \| Accounting Standards Update 2017-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting change - cumulative effect	$ 130