SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 8,080	$ 7,965	$ 7,573		$ 6,802
Revenue Recognition [Abstract]
Contract with Customer, Liability	18	4
Contract with Customer, Asset, after Allowance for Credit Loss	$ 62	65
Environmental Costs [Abstract]
Expected Payment Period of Environmental Contingencies	30 years
Accounts receivable and allowance for doubtful accounts [Abstract]
Allowance for doubtful accounts	$ 14	11
Working Capital Management and Off Balance Sheet Arrangements [Abstract]
Receivable Sold Under Factoring Arrangement	$ 1,500	$ 900
Building And Building Equipment [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	20 to 50 years
Machinery and Equipment [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	3 to 33 years
Computer software [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	3 to 5 years
Office furniture and fixtures and computer equipment [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	5 to 10 years
Vehicles, railcars, and general machinery and equipment [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	5 to 20 years
Manufacturing-related improvements [Member]
Depreciation [Abstract]
Property, Plant and Equipment, Estimated Useful Lives	20 to 33 years
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings				$ 53