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FAIR VALUE MEASUREMENTS - Book Values and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Book values    
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]    
Current maturities of long-term debt and finance lease obligations $ 1,928 $ 1,105
Long-term debt and finance lease obligations 14,306 15,232
Fair values    
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]    
Current maturities of long-term debt and finance lease obligations 1,894 1,079
Long-term debt and finance lease obligations $ 12,884 $ 13,657