FAIR VALUE MEASUREMENTS - Book Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Book values
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]
Short-term debt	$ 50	$ 299
Current maturities of long-term debt and finance lease obligations	1,103	1,105
Long-term debt and finance lease obligations, less current portion	15,278	15,232
Fair values
Fair Value And Carrying Value By Balance Sheet Grouping [Line Items]
Short-term debt	50	299
Current maturities of long-term debt and finance lease obligations	1,084	1,079
Long-term debt and finance lease obligations, less current portion	$ 14,011	$ 13,657