DEBT AND FINANCING COSTS - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt, gross	$ 4,835
Finance lease obligations	32	$ 34
Unamortized discount	(26)	(27)
Debt issuance costs	(25)	(28)
Total debt	4,816	4,887
Current maturities	(2)	(2)
Long-term debt	4,814	4,885
Notes and debentures before unamortized discount and debt issuance costs
Debt Instrument [Line Items]
Debt, fair value	4,300	4,200
Unsecured Debt | 4.625% notes due 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 51	51
Debt interest rate	4.625%
Unsecured Debt | 7.7% notes due 2026
Debt Instrument [Line Items]
Long-term debt, gross	$ 78	78
Debt interest rate	7.70%
Unsecured Debt | 7.95% notes due 2026
Debt Instrument [Line Items]
Long-term debt, gross	$ 132	132
Debt interest rate	7.95%
Unsecured Debt | 4.875% notes due 2027
Debt Instrument [Line Items]
Long-term debt, gross	$ 108	108
Debt interest rate	4.875%
Unsecured Debt | 4.375% notes due 2028
Debt Instrument [Line Items]
Long-term debt, gross	$ 325	325
Debt interest rate	4.375%
Unsecured Debt | 7.75% notes due in 2029
Debt Instrument [Line Items]
Long-term debt, gross	$ 235	235
Debt interest rate	7.75%
Unsecured Debt | 4.25% notes due 2030
Debt Instrument [Line Items]
Long-term debt, gross	$ 516	579
Debt interest rate	4.25%
Unsecured Debt | 6.0% notes due 2037
Debt Instrument [Line Items]
Long-term debt, gross	$ 443	443
Debt interest rate	6.00%
Unsecured Debt | 5.1% notes due 2040
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,333	1,333
Debt interest rate	5.10%
Unsecured Debt | 5.25% notes due 2042
Debt Instrument [Line Items]
Long-term debt, gross	$ 399	399
Debt interest rate	5.25%
Unsecured Debt | 4.75% notes due 2043
Debt Instrument [Line Items]
Long-term debt, gross	$ 428	428
Debt interest rate	4.75%
Unsecured Debt | 4.25% notes due 2044
Debt Instrument [Line Items]
Long-term debt, gross	$ 211	221
Debt interest rate	4.25%
Unsecured Debt | 7.375% debentures due 2047
Debt Instrument [Line Items]
Long-term debt, gross	$ 150	150
Debt interest rate	7.375%
Unsecured Debt | 5.35% notes due 2049
Debt Instrument [Line Items]
Long-term debt, gross	$ 387	387
Debt interest rate	5.35%
Unsecured Debt | 7.625% debentures due 2096
Debt Instrument [Line Items]
Long-term debt, gross	$ 39	39
Debt interest rate	7.625%
Unsecured Debt | Notes and debentures before unamortized discount and debt issuance costs
Debt Instrument [Line Items]
Long-term debt, gross	$ 4,835	$ 4,908