REPOSITIONING AND OTHER CHARGES 4 (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) Employees	Sep. 30, 2016 USD ($) Employees	Sep. 30, 2017 USD ($) Employees	Sep. 30, 2016 USD ($) Employees
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 101	$ 171	$ 247	$ 244
Net repositioning and other charges Paragraph Details [Abstract]
Gross Repositioning Charge	$ 108	$ 202	$ 254	$ 336
Number of employees severed | Employees	1,700	3,017	4,224	5,888
Severance Costs [Member]
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 75	$ 155	$ 177	$ 253
Tangible And Intangible Asset Impairment [Member]
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	22	11	57	42
Exit Costs [Member]
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	11	36	20	41
Restructuring Reserve Accrual Adjustments [Member]
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ (7)	$ (31)	$ (7)	$ (92)