FAIR VALUE MEASUREMENTS - Book Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Book values
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]
Current maturities of long-term debt and finance lease obligations	$ 2,468	$ 2,668
Long-term debt and finance lease obligations	10,436	11,130
Fair values
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]
Current maturities of long-term debt and finance lease obligations	2,442	2,621
Long-term debt and finance lease obligations	$ 9,256	$ 10,067