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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASURES 4 (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Fair Value Disclosures [Abstract]        
Gain (loss) on interest rate swap agreements $ (13) $ 55 $ 206 $ 118
Foreign exchange mark-to-market (ncome) expense 136 $ (182) 69 $ (231)
Cash collateral received $ 323   $ 323