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FAIR VALUE OF FINANCIAL INSTRUMENTS - Estimated Fair Values and Carrying Values of Long-Term Debt (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
FAIR VALUE OF FINANCIAL INSTRUMENTS    
CARRYING VALUE $ 5,072 $ 5,069
FAIR VALUE (LEVEL 2) 4,968 5,103
Fixed rate    
FAIR VALUE OF FINANCIAL INSTRUMENTS    
CARRYING VALUE 4,823 4,820
FAIR VALUE (LEVEL 2) 4,718 4,853
Variable rate    
FAIR VALUE OF FINANCIAL INSTRUMENTS    
CARRYING VALUE 249 249
FAIR VALUE (LEVEL 2) $ 250 $ 250