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DERIVATIVE INSTRUMENTS AND HEDGING TRANSACTIONS 2 (Details) - Long-term Debt [Member] - Designated as Hedging Instrument [Member] - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Amount of the Hedged Item $ 3,265 $ 4,144
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Item $ 115 $ 194