DEBT AND FINANCING COSTS - Components of Financing Costs, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Interest expense	$ 419	$ 438	$ 430
Amortization of debt issuance costs	8	8	7
Capitalized interest	0	(12)	(37)
Loss (gain) on extinguishment of debt	104	(160)	75
Interest income	(8)	(7)	(13)
Interest income from APA Corporation, net	(51)	0	0
Financing costs, net	$ 472	$ 267	$ 462