FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURES 3 (Details) - Significant Observable Inputs (Level 2) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term receivables	$ 333	$ 296
Long-term debt and related current maturities	12,628	13,924
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term receivables	329	289
Long-term debt and related current maturities	$ 13,133	$ 14,695