COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Site Contingency [Line Items]
Environmental Remediation Expense		$ 174	$ 171	$ 504
Capital expenditures for environmental protection		76	79	66
Accrual for Environmental Loss Contingencies [Roll Forward]
Accrual adjustment		175	172
Payments against reserve		(209)	(220)
Foreign currency impact		(24)	17
Other Environmental Matters
Site Contingency [Line Items]
Accrued obligations for environmental matters	$ 909	878	909	909
Environmental Remediation Expense	295
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at Jan 1		878	909
Balance at Dec 31	$ 909	820	878	$ 909
Other Environmental Matters | Superfund Sites
Site Contingency [Line Items]
Accrued obligations for environmental matters		152	152
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at Jan 1		152
Balance at Dec 31		156	152
Other Environmental Matters, Off-Site Matters
Site Contingency [Line Items]
Accrued obligations for environmental matters		83	83
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at Jan 1		83
Balance at Dec 31		$ 95	$ 83