FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURES 3 (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	$ 129	$ 333
Long-term debt and related current maturities	12,486	12,628
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	127	329
Long-term debt and related current maturities	$ 13,578	$ 13,133