INCOME TAXES - COMPONENTS OF DEFERRED TAX ASSETS AND LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred tax liabilities
Property, plant and equipment differences	$ (7,100)	$ (6,994)
Equity investments, partnerships and international subsidiaries	(633)	(709)
Gross long-term deferred tax liabilities	(7,733)	(7,703)
Deferred tax assets
Environmental reserves	416	223
Postretirement benefit accruals	249	229
Deferred compensation and benefits	258	237
Asset retirement obligations	788	722
Foreign tax credit carryforwards	1,975	2,759
Business credit carryforwards	54	43
Net operating loss carryforward	1,031	1,056
Interest expense carryforward	11	11
All other	539	586
Gross long-term deferred tax assets	5,321	5,866
Valuation allowance	(2,962)	(3,901)
Net long-term deferred tax assets	2,359	1,965
Total deferred income tax liability, net	(5,374)	(5,738)
Less: foreign deferred tax asset in long-term receivables and other assets, net	(20)	(26)
Total deferred income tax liability	$ (5,394)	$ (5,764)