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FAIR VALUE MEASUREMENTS - Book Values and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Book values    
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]    
Short-term debt $ 275 $ 301
Current maturities of long-term debt and finance lease obligations 4 210
Long-term debt and finance lease obligations, less current portion 16,153 17,149
Fair values    
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]    
Short-term debt 275 301
Current maturities of long-term debt and finance lease obligations 4 212
Long-term debt and finance lease obligations, less current portion $ 14,402 $ 17,568