PROPERTY (Schedule of Property) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Total property	$ 54,910	$ 53,984
Depreciation expense	2,156	2,174	$ 1,955
Capitalized interest	80	88	$ 240
Land and land improvements
Property, Plant and Equipment [Line Items]
Total property	$ 2,177	2,059
Land and land improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	0 years
Land and land improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	25 years
Buildings
Property, Plant and Equipment [Line Items]
Total property	$ 4,742	4,745
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	50 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property	$ 40,651	40,250
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	25 years
Other property
Property, Plant and Equipment [Line Items]
Total property	$ 5,354	5,084
Other property | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	3 years
Other property | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	50 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total property	$ 1,986	$ 1,846