RESTRUCTURING (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Jan. 01, 2018 USD ($)	Jan. 01, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated			600	1,200
Restructuring Charges	$ 45	$ 28	$ 102	$ 207
Restructuring Costs and Asset Impairment Charges	76	93	200	570
Asset impairments			64
Liability at January 1	119	159	119	159	$ 186	$ 114
Charges			108	233
Change in estimates			(6)	(26)
Foreign currency translation			2	17
Spending			(171)	(179)
Liability at June 30	119	159	119	159	$ 186	$ 114
Cost of Products Sold
Restructuring Cost and Reserve [Line Items]
Restructuring Costs and Asset Impairment Charges	12	1	39	131
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs and Asset Impairment Charges	1		2
Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs and Asset Impairment Charges	18	64	57	232
Other Operating Income (Expense) [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs and Asset Impairment Charges	45	28	102	207
Operating model evolution [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	1,000		1,000
Employee termination costs	37		72
Other Restructuring Costs	8		30
Restructuring Charges	45		102
Restructuring Costs and Asset Impairment Charges	76		200	534
Accelerated depreciation	30		82
Asset impairments	0		10
Other shutdown costs	1		6
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs		18		190
Other Restructuring Costs		10		17
Restructuring Charges		28		207
Restructuring Costs and Asset Impairment Charges		93		570
Accelerated depreciation		64		216
Asset impairments		1		144
Other shutdown costs		$ 0		$ 3
Minimum [Member] | Operating model evolution [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	1,500		$ 1,500
Cash outlays percentage			40.00%
Maximum [Member] | Operating model evolution [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 2,000		$ 2,000
Cash outlays percentage			50.00%