INCOME TAXES - Components Of Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Deferred tax liabilities
Property, plant and equipment differences	$ (7,402)	$ (7,100)
Equity investments, partnerships and international subsidiaries	(831)	(633)
Gross long-term deferred tax liabilities	(8,233)	(7,733)
Deferred tax assets
Environmental reserves	409	416
Postretirement benefit accruals	173	249
Deferred compensation and benefits	344	258
Asset retirement obligations	893	788
Foreign tax credit carryforwards	713	1,975
Business credit carryforwards	60	54
Net operating loss carryforward	1,095	1,031
Interest expense carryforward	11	11
All other	685	539
Gross long-term deferred tax assets	4,383	5,321
Valuation allowance	(1,769)	(2,962)
Net long-term deferred tax assets	2,614	2,359
Total deferred income tax liability, net	(5,619)	(5,374)
Less: foreign deferred tax asset in long-term receivables and other assets, net	(17)	(20)
Total deferred income tax liability (a)	$ (5,636)	$ (5,394)