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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURES 3 (Details) - Long-term Debt [Member] - Designated as Hedging Instrument [Member] - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of the Hedged Item $ 4,773 $ 2,555
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Item $ 73 $ (45)