REPOSITIONING AND OTHER CHARGES 4 (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) Employees	Jun. 30, 2019 USD ($) Employees	Jun. 30, 2020 USD ($) Employees	Jun. 30, 2019 USD ($) Employees
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 255,000,000	$ 84,000,000	$ 325,000,000	$ 142,000,000
Net repositioning and other charges Paragraph Details [Abstract]
Gross Repositioning Charge	$ 273,000,000	$ 86,000,000	$ 356,000,000	$ 146,000,000
Number of employees severed | Employees	7,805	1,266	9,929	2,313
Severance
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 254,000,000	$ 75,000,000	$ 320,000,000	$ 106,000,000
Asset impairments
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	4,000,000	0	6,000,000	11,000,000
Exit costs
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	19,000,000	11,000,000	19,000,000	11,000,000
Restructuring and Related Cost, Incurred Cost	15,000,000	11,000,000	30,000,000	29,000,000
Reserve adjustments
Net Repositioning And Other Charges [Line Items]
Restructuring and Related Cost, Incurred Cost	$ (18,000,000)	$ (2,000,000)	$ (31,000,000)	$ (4,000,000)