LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES - LEGAL MATTERS (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	Mar. 26, 2021	Dec. 31, 2021	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal
Long-term Purchase Commitment [Line Items]
Potential income tax expense		$ 1,000
State
Long-term Purchase Commitment [Line Items]
Potential income tax expense		27
Anadarko Petroleum Corporation
Long-term Purchase Commitment [Line Items]
Tax refund				$ 881
Accrued interest on potential income tax expense		314
Arbitration Demand Filed By Andes Petroleum Ecuador Ltd
Long-term Purchase Commitment [Line Items]
Proceeds from settlement				$ 1,000
Recovery of amount awarded in settlement amount (as a percent)				60.00%
Claim to a settlement amount (as a percent)			40.00%
Own economic interest (as a percent)			60.00%
Amount awarded to other party in litigation	$ 391	$ 558
Tronox Settlement
Long-term Purchase Commitment [Line Items]
Payments for settlement					$ 5,200